<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.powellind.com/role/BusinessAndOrganization" xlink:href="powl-20180930.xsd#BusinessAndOrganization" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/CommitmentsAndContingencies" xlink:href="powl-20180930.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:href="powl-20180930.xsd#CommitmentsAndContingenciesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/CommitmentsAndContingenciesScheduleOfFutureMinimumAnnualRentalCommitmentsUnderLeasesDetails" xlink:href="powl-20180930.xsd#CommitmentsAndContingenciesScheduleOfFutureMinimumAnnualRentalCommitmentsUnderLeasesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/CommitmentsAndContingenciesScheduleOfRentalExpenseAndSubleaseIncomeDetails" xlink:href="powl-20180930.xsd#CommitmentsAndContingenciesScheduleOfRentalExpenseAndSubleaseIncomeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/CommitmentsAndContingenciesTables" xlink:href="powl-20180930.xsd#CommitmentsAndContingenciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/ConsolidatedBalanceSheets" xlink:href="powl-20180930.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="powl-20180930.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="powl-20180930.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" xlink:href="powl-20180930.xsd#ConsolidatedStatementsOfComprehensiveIncomeLoss" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/ConsolidatedStatementsOfOperations" xlink:href="powl-20180930.xsd#ConsolidatedStatementsOfOperations" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/ConsolidatedStatementsOfStockholdersEquity" xlink:href="powl-20180930.xsd#ConsolidatedStatementsOfStockholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/ConsolidatedStatementsOfStockholdersEquityParenthetical" xlink:href="powl-20180930.xsd#ConsolidatedStatementsOfStockholdersEquityParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccounts" xlink:href="powl-20180930.xsd#DetailOfSelectedBalanceSheetAccounts" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsActivityInAllowanceForDoubtfulAccountsDetails" xlink:href="powl-20180930.xsd#DetailOfSelectedBalanceSheetAccountsActivityInAllowanceForDoubtfulAccountsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsActivityInWarrantyAccrualDetails" xlink:href="powl-20180930.xsd#DetailOfSelectedBalanceSheetAccountsActivityInWarrantyAccrualDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsComponentsOfInventoriesDetails" xlink:href="powl-20180930.xsd#DetailOfSelectedBalanceSheetAccountsComponentsOfInventoriesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsCostAndEstimatedEarningsOnUncompletedContractsDetails" xlink:href="powl-20180930.xsd#DetailOfSelectedBalanceSheetAccountsCostAndEstimatedEarningsOnUncompletedContractsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsNarrativeDetails" xlink:href="powl-20180930.xsd#DetailOfSelectedBalanceSheetAccountsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsScheduleOfPropertyPlantAndEquipmentDetails" xlink:href="powl-20180930.xsd#DetailOfSelectedBalanceSheetAccountsScheduleOfPropertyPlantAndEquipmentDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsTables" xlink:href="powl-20180930.xsd#DetailOfSelectedBalanceSheetAccountsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/DocumentAndEntityInformation" xlink:href="powl-20180930.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/EarningsPerShare" xlink:href="powl-20180930.xsd#EarningsPerShare" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/EarningsPerShareDetails" xlink:href="powl-20180930.xsd#EarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/EarningsPerShareTables" xlink:href="powl-20180930.xsd#EarningsPerShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/EmployeeBenefitPlans" xlink:href="powl-20180930.xsd#EmployeeBenefitPlans" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/EmployeeBenefitPlansDetails" xlink:href="powl-20180930.xsd#EmployeeBenefitPlansDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/FairValueMeasurements" xlink:href="powl-20180930.xsd#FairValueMeasurements" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/FairValueMeasurementsDetails" xlink:href="powl-20180930.xsd#FairValueMeasurementsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/FairValueMeasurementsTables" xlink:href="powl-20180930.xsd#FairValueMeasurementsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/GeographicInformation" xlink:href="powl-20180930.xsd#GeographicInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/GeographicInformationScheduleOfLongLivedAssetsByGeographicalAreasDetails" xlink:href="powl-20180930.xsd#GeographicInformationScheduleOfLongLivedAssetsByGeographicalAreasDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/GeographicInformationScheduleOfRevenuesFromExternalCustomersByGeographicalAreasDetails" xlink:href="powl-20180930.xsd#GeographicInformationScheduleOfRevenuesFromExternalCustomersByGeographicalAreasDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/GeographicInformationTables" xlink:href="powl-20180930.xsd#GeographicInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/GoodwillAndIntangibleAssets" xlink:href="powl-20180930.xsd#GoodwillAndIntangibleAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/GoodwillAndIntangibleAssetsNarrativeDetails" xlink:href="powl-20180930.xsd#GoodwillAndIntangibleAssetsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/GoodwillAndIntangibleAssetsScheduleOfEstimatedAmortizationExpenseDetails" xlink:href="powl-20180930.xsd#GoodwillAndIntangibleAssetsScheduleOfEstimatedAmortizationExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/GoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsSubjectToAmortizationDetails" xlink:href="powl-20180930.xsd#GoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsSubjectToAmortizationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/GoodwillAndIntangibleAssetsTables" xlink:href="powl-20180930.xsd#GoodwillAndIntangibleAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxes" xlink:href="powl-20180930.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxesNarrativeDetails" xlink:href="powl-20180930.xsd#IncomeTaxesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails" xlink:href="powl-20180930.xsd#IncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxesScheduleOfComponentsOfDeferredIncomeTaxAssetsDetails" xlink:href="powl-20180930.xsd#IncomeTaxesScheduleOfComponentsOfDeferredIncomeTaxAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxesScheduleOfComponentsOfIncomeTaxProvisionDetails" xlink:href="powl-20180930.xsd#IncomeTaxesScheduleOfComponentsOfIncomeTaxProvisionDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:href="powl-20180930.xsd#IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails" xlink:href="powl-20180930.xsd#IncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxesScheduleOfIncomeBeforeIncomeTaxesDetails" xlink:href="powl-20180930.xsd#IncomeTaxesScheduleOfIncomeBeforeIncomeTaxesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxesScheduleOfValuationAllowanceDetails" xlink:href="powl-20180930.xsd#IncomeTaxesScheduleOfValuationAllowanceDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/IncomeTaxesTables" xlink:href="powl-20180930.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/LongTermDebt" xlink:href="powl-20180930.xsd#LongTermDebt" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/LongTermDebtComponentsOfLongTermDebtDetails" xlink:href="powl-20180930.xsd#LongTermDebtComponentsOfLongTermDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/LongTermDebtNarrativeDetails" xlink:href="powl-20180930.xsd#LongTermDebtNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/LongTermDebtScheduleOfMaturitiesOfLongTermDebtDetails" xlink:href="powl-20180930.xsd#LongTermDebtScheduleOfMaturitiesOfLongTermDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/LongTermDebtTables" xlink:href="powl-20180930.xsd#LongTermDebtTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/QuarterlyInformation" xlink:href="powl-20180930.xsd#QuarterlyInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/QuarterlyInformationDetails" xlink:href="powl-20180930.xsd#QuarterlyInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/QuarterlyInformationTables" xlink:href="powl-20180930.xsd#QuarterlyInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/RestructuringAndSeparationExpenses" xlink:href="powl-20180930.xsd#RestructuringAndSeparationExpenses" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/RestructuringAndSeparationExpensesDetails" xlink:href="powl-20180930.xsd#RestructuringAndSeparationExpensesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/StockBasedCompensation" xlink:href="powl-20180930.xsd#StockBasedCompensation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/StockBasedCompensationNarrativeDetails" xlink:href="powl-20180930.xsd#StockBasedCompensationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/StockBasedCompensationScheduleOfRestrictedStockUnitsActivityDetails" xlink:href="powl-20180930.xsd#StockBasedCompensationScheduleOfRestrictedStockUnitsActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/StockBasedCompensationTables" xlink:href="powl-20180930.xsd#StockBasedCompensationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/SubsequentEvents" xlink:href="powl-20180930.xsd#SubsequentEvents" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/SubsequentEventsDetails" xlink:href="powl-20180930.xsd#SubsequentEventsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="powl-20180930.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:href="powl-20180930.xsd#SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="powl-20180930.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/SummaryOfSignificantAccountingPoliciesSupplementalDisclosuresOfCashFlowInformationDetails" xlink:href="powl-20180930.xsd#SummaryOfSignificantAccountingPoliciesSupplementalDisclosuresOfCashFlowInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.powellind.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="powl-20180930.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:presentationLink xlink:role="http://www.powellind.com/role/BusinessAndOrganization" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_BBC5B275C4BE6B1DA54B8371B2B5A467" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NatureOfOperations" xlink:label="loc_us-gaap_NatureOfOperations_E1FBEC6E80F63DB056EE8371B2B576A2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_BBC5B275C4BE6B1DA54B8371B2B5A467" xlink:to="loc_us-gaap_NatureOfOperations_E1FBEC6E80F63DB056EE8371B2B576A2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/CommitmentsAndContingencies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_556EAE834A1F4B52964C8371B15FB334" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_B1A82BD379198A535AF98371B15FC2B3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_556EAE834A1F4B52964C8371B15FB334" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_B1A82BD379198A535AF98371B15FC2B3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_F5B73D8CE04F32DE69412C74CAF97764" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfGuaranteeObligationsTable" xlink:label="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_2832C95D5C2385D79FEB2C74CAF961AD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_F5B73D8CE04F32DE69412C74CAF97764" xlink:to="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_2832C95D5C2385D79FEB2C74CAF961AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_B379FD26D491ECA9ABB62C74CAF9842F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_2832C95D5C2385D79FEB2C74CAF961AD" xlink:to="loc_us-gaap_CreditFacilityAxis_B379FD26D491ECA9ABB62C74CAF9842F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_89C4615DC17DECA86A232C74CAF94F08" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_B379FD26D491ECA9ABB62C74CAF9842F" xlink:to="loc_us-gaap_CreditFacilityDomain_89C4615DC17DECA86A232C74CAF94F08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DomesticLineOfCreditMember" xlink:label="loc_us-gaap_DomesticLineOfCreditMember_BD9DA56A205DF453944A2C74CAF97DA3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_89C4615DC17DECA86A232C74CAF94F08" xlink:to="loc_us-gaap_DomesticLineOfCreditMember_BD9DA56A205DF453944A2C74CAF97DA3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GuaranteeObligationsByNatureAxis" xlink:label="loc_us-gaap_GuaranteeObligationsByNatureAxis_1F57B5B3F7559323700E2C74CAFC4E9F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_2832C95D5C2385D79FEB2C74CAF961AD" xlink:to="loc_us-gaap_GuaranteeObligationsByNatureAxis_1F57B5B3F7559323700E2C74CAFC4E9F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GuaranteeObligationsNatureDomain" xlink:label="loc_us-gaap_GuaranteeObligationsNatureDomain_9433F341037BB17882ED2C74CAFC5913" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsByNatureAxis_1F57B5B3F7559323700E2C74CAFC4E9F" xlink:to="loc_us-gaap_GuaranteeObligationsNatureDomain_9433F341037BB17882ED2C74CAFC5913" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_FinancialStandbyLetterOfCreditAndBankGuaranteesMember" xlink:label="loc_powl_FinancialStandbyLetterOfCreditAndBankGuaranteesMember_948BF51AC5281CEE68DA2C7EB530D539" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsNatureDomain_9433F341037BB17882ED2C74CAFC5913" xlink:to="loc_powl_FinancialStandbyLetterOfCreditAndBankGuaranteesMember_948BF51AC5281CEE68DA2C7EB530D539" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SuretyBondMember" xlink:label="loc_us-gaap_SuretyBondMember_92C82151C60E4D120B0B2C74CAFC2C49" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsNatureDomain_9433F341037BB17882ED2C74CAFC5913" xlink:to="loc_us-gaap_SuretyBondMember_92C82151C60E4D120B0B2C74CAFC2C49" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_F9CA97362F79DCE1678E2C74CAFC35D8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_2832C95D5C2385D79FEB2C74CAF961AD" xlink:to="loc_us-gaap_DebtInstrumentAxis_F9CA97362F79DCE1678E2C74CAFC35D8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_698EFD325ED0251C201B2C74CAFCD37A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_F9CA97362F79DCE1678E2C74CAFC35D8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_698EFD325ED0251C201B2C74CAFCD37A" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_FacilityAgreementMember" xlink:label="loc_powl_FacilityAgreementMember_A1B9B487B33EB3ABC7732C74CAFC36A0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_698EFD325ED0251C201B2C74CAFCD37A" xlink:to="loc_powl_FacilityAgreementMember_A1B9B487B33EB3ABC7732C74CAFC36A0" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_E073833C3526C16813CF2C74CAFC29A3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_2832C95D5C2385D79FEB2C74CAF961AD" xlink:to="loc_dei_LegalEntityAxis_E073833C3526C16813CF2C74CAFC29A3" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_C753A0927D2BB9CD21822C74CAFCE16F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_LegalEntityAxis_E073833C3526C16813CF2C74CAFC29A3" xlink:to="loc_dei_EntityDomain_C753A0927D2BB9CD21822C74CAFCE16F" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_PowellUKLimitedMember" xlink:label="loc_powl_PowellUKLimitedMember_76784B31BA84304C3A242C74CAFCE16C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain_C753A0927D2BB9CD21822C74CAFCE16F" xlink:to="loc_powl_PowellUKLimitedMember_76784B31BA84304C3A242C74CAFCE16C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GuaranteeObligationsLineItems" xlink:label="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGuaranteeObligationsTable_2832C95D5C2385D79FEB2C74CAF961AD" xlink:to="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_273ED9D60F529E11CF592C74CAFE823A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:to="loc_us-gaap_RestructuringCharges_273ED9D60F529E11CF592C74CAFE823A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessExitCosts1" xlink:label="loc_us-gaap_BusinessExitCosts1_6233A75D17F7F40843802C74CAFEB66E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:to="loc_us-gaap_BusinessExitCosts1_6233A75D17F7F40843802C74CAFEB66E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GuaranteeObligationsCurrentCarryingValue" xlink:label="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_6347F76AC0A9EEDA9FE32C74CAFE1A5B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:to="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_6347F76AC0A9EEDA9FE32C74CAFE1A5B" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_CommitmentsAndContingenciesAdditionalBondingCapacity" xlink:label="loc_powl_CommitmentsAndContingenciesAdditionalBondingCapacity_B0B0603BC14F80400FEF2C74CAFED54B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:to="loc_powl_CommitmentsAndContingenciesAdditionalBondingCapacity_B0B0603BC14F80400FEF2C74CAFED54B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_539B2C72698C9F2EC6B82C74CAFE7347" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_539B2C72698C9F2EC6B82C74CAFE7347" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_8363D611B1A1C4FC4A632C74CAFE6F0C" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_8363D611B1A1C4FC4A632C74CAFE6F0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_74D0F3A439A8F7C653E22C74CAFE5AC4" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_74D0F3A439A8F7C653E22C74CAFE5AC4" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_LossContingencyProbableLossInPeriod" xlink:label="loc_powl_LossContingencyProbableLossInPeriod_D83B00C01FCFD1D673EA2C74CAFEC3F0" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:to="loc_powl_LossContingencyProbableLossInPeriod_D83B00C01FCFD1D673EA2C74CAFEC3F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress" xlink:label="loc_us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress_C94E88B27594AE2A50782C74CAFE1C91" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsLineItems_59D941817A9CF99FAE442C74CAFEDF6C" xlink:to="loc_us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress_C94E88B27594AE2A50782C74CAFE1C91" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/CommitmentsAndContingenciesScheduleOfFutureMinimumAnnualRentalCommitmentsUnderLeasesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_5FFCC53DCD0DA8FADAFD0D7AB9CFC883" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5484FFC4E300ED4BE5070D7AB9CFDD96" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_5FFCC53DCD0DA8FADAFD0D7AB9CFC883" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5484FFC4E300ED4BE5070D7AB9CFDD96" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_C531FFBFF0CBFE8AB68F0D7AB9CF1AD7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5484FFC4E300ED4BE5070D7AB9CFDD96" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_C531FFBFF0CBFE8AB68F0D7AB9CF1AD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_5CFF09CDB5CEFB1C9D070D7AB9CFB7EE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5484FFC4E300ED4BE5070D7AB9CFDD96" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_5CFF09CDB5CEFB1C9D070D7AB9CFB7EE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_6AD84FEF1950B75BED750D7AB9CF09DA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5484FFC4E300ED4BE5070D7AB9CFDD96" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_6AD84FEF1950B75BED750D7AB9CF09DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_EE8600A9078A25E470B40D7AB9CFB0FB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5484FFC4E300ED4BE5070D7AB9CFDD96" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_EE8600A9078A25E470B40D7AB9CFB0FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_A799F98C64BA85856EA50D7AB9CFCDEF" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5484FFC4E300ED4BE5070D7AB9CFDD96" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_A799F98C64BA85856EA50D7AB9CFCDEF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_857F0339A7A3F9E01A5A0D7AB9CFF1E5" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5484FFC4E300ED4BE5070D7AB9CFDD96" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_857F0339A7A3F9E01A5A0D7AB9CFF1E5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_40EE5B9DF7624822483D0D7AB9CFC647" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_5484FFC4E300ED4BE5070D7AB9CFDD96" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_40EE5B9DF7624822483D0D7AB9CFC647" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract" xlink:label="loc_powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract_1A4863A8C65C6C8543F20D7AB9CFFEE3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_5FFCC53DCD0DA8FADAFD0D7AB9CFC883" xlink:to="loc_powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract_1A4863A8C65C6C8543F20D7AB9CFFEE3" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueNextTwelveMonths" xlink:label="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueNextTwelveMonths_A6F0A966643E16F0E04A0D7AB9CF7F5F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract_1A4863A8C65C6C8543F20D7AB9CFFEE3" xlink:to="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueNextTwelveMonths_A6F0A966643E16F0E04A0D7AB9CF7F5F" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInTwoYears_7D8D90C70D49B2BDB3940D7AB9CF9CE6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract_1A4863A8C65C6C8543F20D7AB9CFFEE3" xlink:to="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInTwoYears_7D8D90C70D49B2BDB3940D7AB9CF9CE6" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInThreeYears_B2A741D5CA88257CBFD20D7AB9CF5828" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract_1A4863A8C65C6C8543F20D7AB9CFFEE3" xlink:to="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInThreeYears_B2A741D5CA88257CBFD20D7AB9CF5828" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInFourYears" xlink:label="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInFourYears_2107D4DAB4349B52DB840D7AB9CF61A7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract_1A4863A8C65C6C8543F20D7AB9CFFEE3" xlink:to="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInFourYears_2107D4DAB4349B52DB840D7AB9CF61A7" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInFiveYears_0C5681963EB3D60EC7F90D7AB9CF4EA8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract_1A4863A8C65C6C8543F20D7AB9CFFEE3" xlink:to="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueInFiveYears_0C5681963EB3D60EC7F90D7AB9CF4EA8" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueThereafter" xlink:label="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueThereafter_3A8E67DD22AEBA095BE20D7AB9CF9259" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract_1A4863A8C65C6C8543F20D7AB9CFFEE3" xlink:to="loc_powl_OperatingLeasesRentExpenseSubleaseRentalsFutureMinimumPaymentsDueThereafter_3A8E67DD22AEBA095BE20D7AB9CF9259" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals_EE70BB49ECCA462BBFBF0D7AB9CFB071" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_OperatingLeasesSubleaseFutureMinimumPaymentsDueRollingMaturityAbstractAbstract_1A4863A8C65C6C8543F20D7AB9CFFEE3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals_EE70BB49ECCA462BBFBF0D7AB9CFB071" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/CommitmentsAndContingenciesScheduleOfRentalExpenseAndSubleaseIncomeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_858B018808AF131CAB0F8371B3801693" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseNet_E3075A45EC86B15835CA8371B38038D2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_858B018808AF131CAB0F8371B3801693" xlink:to="loc_us-gaap_OperatingLeasesRentExpenseNet_E3075A45EC86B15835CA8371B38038D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesRentExpenseSubleaseRentals1" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseSubleaseRentals1_F5AA8FA06BB32DED29C78371B380207E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_858B018808AF131CAB0F8371B3801693" xlink:to="loc_us-gaap_OperatingLeasesRentExpenseSubleaseRentals1_F5AA8FA06BB32DED29C78371B380207E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/CommitmentsAndContingenciesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_2C2FCFEFCC545DCC0B588371B1ECC0EB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_1AD3C2C9DFD3E1B3A90F8371B1EC6616" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_2C2FCFEFCC545DCC0B588371B1ECC0EB" xlink:to="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_1AD3C2C9DFD3E1B3A90F8371B1EC6616" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_ScheduleofLeaseExpenseandSubleaseIncomeTableTextBlock" xlink:label="loc_powl_ScheduleofLeaseExpenseandSubleaseIncomeTableTextBlock_32EFEA7A4FE7EE484A918371B1ECE650" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_2C2FCFEFCC545DCC0B588371B1ECC0EB" xlink:to="loc_powl_ScheduleofLeaseExpenseandSubleaseIncomeTableTextBlock_32EFEA7A4FE7EE484A918371B1ECE650" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_34ACEB2A5DBB7371F3E8668B0DB77515" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_5D91922ED1C93B9156A4668B0DB79FC7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_34ACEB2A5DBB7371F3E8668B0DB77515" xlink:to="loc_us-gaap_AssetsAbstract_5D91922ED1C93B9156A4668B0DB79FC7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5D91922ED1C93B9156A4668B0DB79FC7" xlink:to="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7C9BF907BA7F48B2D625668B0DC92FC4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7C9BF907BA7F48B2D625668B0DC92FC4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShortTermInvestments" xlink:label="loc_us-gaap_ShortTermInvestments_F55D4EB6F0E37770D56A668B0DC9E20E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_ShortTermInvestments_F55D4EB6F0E37770D56A668B0DC9E20E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_284A89ACDDCFC1F19952668B0DC90257" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_284A89ACDDCFC1F19952668B0DC90257" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_FDDD887937E5659A6031668B0DCA5F45" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_FDDD887937E5659A6031668B0DCA5F45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear" xlink:label="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear_455CF58AA411CCED795B668B0DCA21FE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear_455CF58AA411CCED795B668B0DCA21FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_F45C2498BCB0B1093147668B0DCA39D6" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_InventoryNet_F45C2498BCB0B1093147668B0DCA39D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="loc_us-gaap_IncomeTaxesReceivable_BC7E3D9A5530A94A6639668B0DCAE056" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_IncomeTaxesReceivable_BC7E3D9A5530A94A6639668B0DCAE056" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsNetCurrent_2226A349EFBF31EB2489668B0DCAEAD6" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_DeferredTaxAssetsNetCurrent_2226A349EFBF31EB2489668B0DCAEAD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_110B1B81C649624864FE668B0DCBBD94" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_110B1B81C649624864FE668B0DCBBD94" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_542DDC9FA9D9BA40FB60668B0DCB63FD" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_OtherAssetsCurrent_542DDC9FA9D9BA40FB60668B0DCB63FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_E026F6D2568DEB716459668B0DCB89DF" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_00555A4C0B925E76AD89668B0DC8238C" xlink:to="loc_us-gaap_AssetsCurrent_E026F6D2568DEB716459668B0DCB89DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_00BB768099B8BCABE719668B0DCB12DA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5D91922ED1C93B9156A4668B0DB79FC7" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_00BB768099B8BCABE719668B0DCB12DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_84F3F6CD41DFE2DCEA61668B0DCBD072" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5D91922ED1C93B9156A4668B0DB79FC7" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_84F3F6CD41DFE2DCEA61668B0DCBD072" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_252F9D313FE404426DCA668B0DCBC75A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5D91922ED1C93B9156A4668B0DB79FC7" xlink:to="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_252F9D313FE404426DCA668B0DCBC75A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_2389DD6921D18CAA1F58668B0DCC3458" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5D91922ED1C93B9156A4668B0DB79FC7" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_2389DD6921D18CAA1F58668B0DCC3458" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsNetNoncurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsNetNoncurrent_73614E0DA61E82F038F6668B0DCCE207" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5D91922ED1C93B9156A4668B0DB79FC7" xlink:to="loc_us-gaap_DeferredTaxAssetsNetNoncurrent_73614E0DA61E82F038F6668B0DCCE207" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_C65A2AB0749965CBC56D668B0DCC0AD6" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5D91922ED1C93B9156A4668B0DB79FC7" xlink:to="loc_us-gaap_Assets_C65A2AB0749965CBC56D668B0DCC0AD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_34ACEB2A5DBB7371F3E8668B0DB77515" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_5B07CDF6A0A8E07E68B1668B0DCD03CB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:to="loc_us-gaap_LongTermDebtCurrent_5B07CDF6A0A8E07E68B1668B0DCD03CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_81B84B40369BDDD41D0F668B0DCD3C2B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_81B84B40369BDDD41D0F668B0DCD3C2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_A38E7F1791622D873891668B0DCD73CC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:to="loc_us-gaap_AccountsPayableCurrent_A38E7F1791622D873891668B0DCD73CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_5ED90327792D3A889248668B0DCDE468" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_5ED90327792D3A889248668B0DCDE468" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BillingsInExcessOfCostCurrent" xlink:label="loc_us-gaap_BillingsInExcessOfCostCurrent_5E43B4929152CAF13175668B0DCD31A2" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:to="loc_us-gaap_BillingsInExcessOfCostCurrent_5E43B4929152CAF13175668B0DCD31A2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_359E342F305DE75EFE61668B0DCD3151" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_359E342F305DE75EFE61668B0DCD3151" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_4FD7D26281A355D8D915668CA945B7C3" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_4FD7D26281A355D8D915668CA945B7C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredRevenueAndCreditsCurrent" xlink:label="loc_us-gaap_DeferredRevenueAndCreditsCurrent_1D54D60227AE7D12B7E4668B0DCEF2C0" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:to="loc_us-gaap_DeferredRevenueAndCreditsCurrent_1D54D60227AE7D12B7E4668B0DCEF2C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_68D81896C4D442FB9362668B0DCEA740" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_5F61ABDF7A5948982D30668B0DCC6F55" xlink:to="loc_us-gaap_LiabilitiesCurrent_68D81896C4D442FB9362668B0DCEA740" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_980DBFE335811999B62D668B0DCE6D55" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_980DBFE335811999B62D668B0DCE6D55" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent" xlink:label="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_6C6231C57A0203C86440668B0DCE004F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:to="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_6C6231C57A0203C86440668B0DCE004F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_85387BEFC344C9EF05B6668B0DCE2D63" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_85387BEFC344C9EF05B6668B0DCE2D63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_CEA33B1F564EC2329657668B0DCF5663" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:to="loc_us-gaap_Liabilities_CEA33B1F564EC2329657668B0DCF5663" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_5BD7572ED044E1ECE811668B0DCF5132" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:to="loc_us-gaap_CommitmentsAndContingencies_5BD7572ED044E1ECE811668B0DCF5132" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_6DB0E88D0D28A4F50987668B0DCF66D4" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:to="loc_us-gaap_StockholdersEquityAbstract_6DB0E88D0D28A4F50987668B0DCF66D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaap_PreferredStockValue_FE33489E4D32FBE047E1668B0DCF184E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_6DB0E88D0D28A4F50987668B0DCF66D4" xlink:to="loc_us-gaap_PreferredStockValue_FE33489E4D32FBE047E1668B0DCF184E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockValueOutstanding" xlink:label="loc_us-gaap_CommonStockValueOutstanding_F4E34B4E168A4396F86D668B0DCFB418" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_6DB0E88D0D28A4F50987668B0DCF66D4" xlink:to="loc_us-gaap_CommonStockValueOutstanding_F4E34B4E168A4396F86D668B0DCFB418" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_92905E7BCB1168A3123D668B0DD56AB3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_6DB0E88D0D28A4F50987668B0DCF66D4" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_92905E7BCB1168A3123D668B0DD56AB3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_229531E0FD7A60BAF51A668B0DD51D2A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_6DB0E88D0D28A4F50987668B0DCF66D4" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_229531E0FD7A60BAF51A668B0DD51D2A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_2A2E33F9FCF2CE5CDD94668B0DD5DF64" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_6DB0E88D0D28A4F50987668B0DCF66D4" xlink:to="loc_us-gaap_TreasuryStockValue_2A2E33F9FCF2CE5CDD94668B0DD5DF64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_5AE70B0E7DBBA8986B03668B0DD53755" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_6DB0E88D0D28A4F50987668B0DCF66D4" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_5AE70B0E7DBBA8986B03668B0DD53755" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_8A0E8DE766E6EC67E8E8668B0DD699A7" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_6DB0E88D0D28A4F50987668B0DCF66D4" xlink:to="loc_us-gaap_StockholdersEquity_8A0E8DE766E6EC67E8E8668B0DD699A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_A4E702520389162BBCCE668B0DD69519" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_EFF6A0794EDB204CF429668B0DCC62F7" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_A4E702520389162BBCCE668B0DD69519" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_598C9DFF9A837BBCD4518371B3611DA9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_6B4EA918635C2147A5A08371B3610C6D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_598C9DFF9A837BBCD4518371B3611DA9" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_6B4EA918635C2147A5A08371B3610C6D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_87A992218D970A7DCD3A8371B3618DA2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_598C9DFF9A837BBCD4518371B3611DA9" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_87A992218D970A7DCD3A8371B3618DA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_AE01BE2654A8669B91338371B3615374" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_598C9DFF9A837BBCD4518371B3611DA9" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_AE01BE2654A8669B91338371B3615374" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_26744327B018BB5B966C8371B361A105" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_598C9DFF9A837BBCD4518371B3611DA9" xlink:to="loc_us-gaap_PreferredStockSharesIssued_26744327B018BB5B966C8371B361A105" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_DE0BAF35DCA37E03743F8371B361B692" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_598C9DFF9A837BBCD4518371B3611DA9" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_DE0BAF35DCA37E03743F8371B361B692" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_6022F323E72800EA63AC8371B3611EB2" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_598C9DFF9A837BBCD4518371B3611DA9" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_6022F323E72800EA63AC8371B3611EB2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_01AC28A6CC10B372EF4C8371B3619F01" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_598C9DFF9A837BBCD4518371B3611DA9" xlink:to="loc_us-gaap_CommonStockSharesIssued_01AC28A6CC10B372EF4C8371B3619F01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_us-gaap_TreasuryStockShares_E5D5B47AE4CAAC6926918371B3615E5D" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_598C9DFF9A837BBCD4518371B3611DA9" xlink:to="loc_us-gaap_TreasuryStockShares_E5D5B47AE4CAAC6926918371B3615E5D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_9368106157EDF803BFD7668B1F4BA4AA" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_300B7B4D2B5713B66000668B1F4B8032" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9368106157EDF803BFD7668B1F4BA4AA" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_300B7B4D2B5713B66000668B1F4B8032" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_7E35610600710E986E37668B1F4BAA0B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_300B7B4D2B5713B66000668B1F4B8032" xlink:to="loc_us-gaap_NetIncomeLoss_7E35610600710E986E37668B1F4BAA0B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_300B7B4D2B5713B66000668B1F4B8032" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_2970BE790A4E35CA29F3668B1F4BA3F5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_us-gaap_Depreciation_2970BE790A4E35CA29F3668B1F4BA3F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentForAmortization" xlink:label="loc_us-gaap_AdjustmentForAmortization_81B17D78E51BC9A85891668B1F4BCD7F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_us-gaap_AdjustmentForAmortization_81B17D78E51BC9A85891668B1F4BCD7F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_15F5DC52A383E4E03A23668B1F4B0665" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_us-gaap_ShareBasedCompensation_15F5DC52A383E4E03A23668B1F4B0665" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities_13D3C2928558C78840E4668B1F4B86B2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities_13D3C2928558C78840E4668B1F4B86B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_97E4644BCBEC2DE2AC8E668B1F4B5F78" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_97E4644BCBEC2DE2AC8E668B1F4B5F78" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_280080942FBE185F2F44668B1F4BD950" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_280080942FBE185F2F44668B1F4BD950" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainLossOnDispositionOfIntangibleAssets" xlink:label="loc_us-gaap_GainLossOnDispositionOfIntangibleAssets_DA45FFB315F15BDFA614668B1F4BF57E" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_us-gaap_GainLossOnDispositionOfIntangibleAssets_DA45FFB315F15BDFA614668B1F4BF57E" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_GainLossOnCashSurrenderValueOfLifeInsurance" xlink:label="loc_powl_GainLossOnCashSurrenderValueOfLifeInsurance_E031CB963936740DC618668B1F4B1BAD" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_powl_GainLossOnCashSurrenderValueOfLifeInsurance_E031CB963936740DC618668B1F4B1BAD" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_CashReceivedFromAmendedSupplyAgreement" xlink:label="loc_powl_CashReceivedFromAmendedSupplyAgreement_4FD6DF1C506AF4BEF034668B1F4B88D6" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_powl_CashReceivedFromAmendedSupplyAgreement_4FD6DF1C506AF4BEF034668B1F4B88D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_59D416AA3BCAD93C6034668B1F4B7C8C" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_D3ED6B64E3033E3B5954668B1F4B13AB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_D3ED6B64E3033E3B5954668B1F4B13AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInUnbilledReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInUnbilledReceivables_2514ADED0FE7977B3A7E668B1F4BEB0B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:to="loc_us-gaap_IncreaseDecreaseInUnbilledReceivables_2514ADED0FE7977B3A7E668B1F4BEB0B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_F8B280A5F1BC41C7EFBA668B1F4BD8DE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_F8B280A5F1BC41C7EFBA668B1F4BD8DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_89159E0F189EBD063E4F668B1F4BA1E1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_89159E0F189EBD063E4F668B1F4BA1E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_E4AA36599EDF6B4BBDAC668B1F5B557C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_E4AA36599EDF6B4BBDAC668B1F5B557C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_CF7F70A025CD732FA054668B1F5B7A55" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_CF7F70A025CD732FA054668B1F5B7A55" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_1948ED9E235E47CBE5B3668B1F5B8532" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_1948ED9E235E47CBE5B3668B1F5B8532" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_654D190B814734695A12668B1F5BFD47" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_BDA258FED661F9486D54668B1F4BB271" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_654D190B814734695A12668B1F5BFD47" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_61F50C683775E5CAB047668B1F5B305A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_300B7B4D2B5713B66000668B1F4B8032" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_61F50C683775E5CAB047668B1F5B305A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_2844460EE5F2603333E5668B1F5BA2BA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9368106157EDF803BFD7668B1F4BA4AA" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_2844460EE5F2603333E5668B1F5BA2BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_26CB6B46FCEF51392529668B1F5B1DDF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_2844460EE5F2603333E5668B1F5BA2BA" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_26CB6B46FCEF51392529668B1F5B1DDF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_12FFAA11EA7646AF8079668B1F5BC955" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_2844460EE5F2603333E5668B1F5BA2BA" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_12FFAA11EA7646AF8079668B1F5BC955" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireShortTermInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireShortTermInvestments_2429B9A3E3CC0B9A22D8668B1F5B24F5" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_2844460EE5F2603333E5668B1F5BA2BA" xlink:to="loc_us-gaap_PaymentsToAcquireShortTermInvestments_2429B9A3E3CC0B9A22D8668B1F5B24F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments_11CA3D3B4C854A818526668B1F5BEBB4" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_2844460EE5F2603333E5668B1F5BA2BA" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments_11CA3D3B4C854A818526668B1F5BEBB4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromLifeInsurancePolicies" xlink:label="loc_us-gaap_ProceedsFromLifeInsurancePolicies_C2D643349D8A65C5EAFD668B1F5BBF9D" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_2844460EE5F2603333E5668B1F5BA2BA" xlink:to="loc_us-gaap_ProceedsFromLifeInsurancePolicies_C2D643349D8A65C5EAFD668B1F5BBF9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseInRestrictedCash" xlink:label="loc_us-gaap_IncreaseInRestrictedCash_D55CEB2514B9FD415AC2668B1F5B91BC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_2844460EE5F2603333E5668B1F5BA2BA" xlink:to="loc_us-gaap_IncreaseInRestrictedCash_D55CEB2514B9FD415AC2668B1F5B91BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_5D415ED868FEE6693E9B668B1F5B77AB" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_2844460EE5F2603333E5668B1F5BA2BA" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_5D415ED868FEE6693E9B668B1F5B77AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_FE2D5ABA00D30697E785668B1F5BE9B9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9368106157EDF803BFD7668B1F4BA4AA" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_FE2D5ABA00D30697E785668B1F5BE9B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_77391432E2BBECABFBE5668B1F5BE50C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_FE2D5ABA00D30697E785668B1F5BE9B9" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_77391432E2BBECABFBE5668B1F5BE50C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_C3DA93302228182F55EE668B1F5BC2E1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_FE2D5ABA00D30697E785668B1F5BE9B9" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_C3DA93302228182F55EE668B1F5BC2E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_E9AE4FB8753C85C3DCEC668B1F5BA3B6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_FE2D5ABA00D30697E785668B1F5BE9B9" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_E9AE4FB8753C85C3DCEC668B1F5BA3B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_6DE8CA65F90CBD0B6905668B1F5BC192" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_FE2D5ABA00D30697E785668B1F5BE9B9" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_6DE8CA65F90CBD0B6905668B1F5BC192" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_675E1A983C8ADE6FF5C3668B1F5BC038" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_FE2D5ABA00D30697E785668B1F5BE9B9" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_675E1A983C8ADE6FF5C3668B1F5BC038" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_952C1FBF95F7FD9E4CC3668B1F5BC8F4" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_FE2D5ABA00D30697E785668B1F5BE9B9" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_952C1FBF95F7FD9E4CC3668B1F5BC8F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_B9E2030A63BDBE69DBD6668B1F5B368F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9368106157EDF803BFD7668B1F4BA4AA" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_B9E2030A63BDBE69DBD6668B1F5B368F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_92A10FE0961B74C16E02668B1F5BC957" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9368106157EDF803BFD7668B1F4BA4AA" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_92A10FE0961B74C16E02668B1F5BC957" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7A9F71A8DB4570CCB055668B1F5BE791" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9368106157EDF803BFD7668B1F4BA4AA" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7A9F71A8DB4570CCB055668B1F5BE791" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_91DA7D3E3A0B3DC39F41668B1F5B3BCC" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9368106157EDF803BFD7668B1F4BA4AA" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_91DA7D3E3A0B3DC39F41668B1F5B3BCC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossAbstract" xlink:label="loc_us-gaap_NetIncomeLossAbstract_855CF1A3E1F6787DD6DD8371B0855F07" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_520D65C39FFC2CDCA5318371B0852A7D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAbstract_855CF1A3E1F6787DD6DD8371B0855F07" xlink:to="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_520D65C39FFC2CDCA5318371B0852A7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_38B0840B7B6388B80C388371B0851E0B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_520D65C39FFC2CDCA5318371B0852A7D" xlink:to="loc_us-gaap_NetIncomeLoss_38B0840B7B6388B80C388371B0851E0B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_ADDE56425405DCE44C2E8371B085A427" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_520D65C39FFC2CDCA5318371B0852A7D" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_ADDE56425405DCE44C2E8371B085A427" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_1B4965577703483945778371B08544CC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_520D65C39FFC2CDCA5318371B0852A7D" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_1B4965577703483945778371B08544CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_22548296A3F2071037A38371B085E0A3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_520D65C39FFC2CDCA5318371B0852A7D" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_22548296A3F2071037A38371B085E0A3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/ConsolidatedStatementsOfOperations" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_FA426D9344B02EF8A1D20D7ABB8EE8F6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_FA426D9344B02EF8A1D20D7ABB8EE8F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_62A4A9CBC6534500898B0D7ABB8E2E24" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_62A4A9CBC6534500898B0D7ABB8E2E24" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_318958C5A99730DCA28C0D7ABB8E7ED9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_GrossProfit_318958C5A99730DCA28C0D7ABB8E7ED9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_1B06C505C4169BECD0100D7ABB8EA98A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_1B06C505C4169BECD0100D7ABB8EA98A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_97FE5B9B22CCD70740CA0D7ABB8E7823" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_97FE5B9B22CCD70740CA0D7ABB8E7823" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_E1AE98A297A4686FD0AF0D7ABB8E7936" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_E1AE98A297A4686FD0AF0D7ABB8E7936" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_A289BDB869179540F5720D7ABB8EB5F7" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_RestructuringCharges_A289BDB869179540F5720D7ABB8EB5F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_AFB4892443636755ADA70D7ABB8EA799" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_OperatingIncomeLoss_AFB4892443636755ADA70D7ABB8EA799" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_99EEAB4B182F494B1DB00D7ABB8E2C57" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_99EEAB4B182F494B1DB00D7ABB8E2C57" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_7F8B5BF187CA7E79D9FB0D7ABB8EE3F6" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_InterestExpense_7F8B5BF187CA7E79D9FB0D7ABB8EE3F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="loc_us-gaap_InvestmentIncomeInterest_BBD973D999A6872386250D7ABB8E5E52" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_InvestmentIncomeInterest_BBD973D999A6872386250D7ABB8E5E52" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_30D185558018C68508870D7ABB8ECD46" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_30D185558018C68508870D7ABB8ECD46" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_4ADC271F4FFC2AAE05D10D7ABB8E346C" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_4ADC271F4FFC2AAE05D10D7ABB8E346C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_5A043675803BFD1283290D7ABB8EF698" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_NetIncomeLoss_5A043675803BFD1283290D7ABB8EF698" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_C52CAA1BB2A13C5FFCE40D7ABB8EFB1C" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_EarningsPerShareAbstract_C52CAA1BB2A13C5FFCE40D7ABB8EFB1C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_D0168E12CFC9AF9FD57D0D7ABB8E9430" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_C52CAA1BB2A13C5FFCE40D7ABB8EFB1C" xlink:to="loc_us-gaap_EarningsPerShareBasic_D0168E12CFC9AF9FD57D0D7ABB8E9430" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_6B7D736180768E114C3C0D7ABB8EA1D7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_C52CAA1BB2A13C5FFCE40D7ABB8EFB1C" xlink:to="loc_us-gaap_EarningsPerShareDiluted_6B7D736180768E114C3C0D7ABB8EA1D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_D2F91C5F63E8B2A19EDC0D7ABB8E81C0" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_D2F91C5F63E8B2A19EDC0D7ABB8E81C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_969B53946D9F976ADB380D7ABB8E813B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_D2F91C5F63E8B2A19EDC0D7ABB8E81C0" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_969B53946D9F976ADB380D7ABB8E813B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_1C936285933F652EEA6E0D7ABB8EA72F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_D2F91C5F63E8B2A19EDC0D7ABB8E81C0" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_1C936285933F652EEA6E0D7ABB8EA72F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_D236CEB137E46FC609E30D7ABB8E4BC4" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_FAB5E32B0F0D35E069230D7ABB8E36D8" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_D236CEB137E46FC609E30D7ABB8E4BC4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/ConsolidatedStatementsOfStockholdersEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_44E70A0B69C6C459709312A8374CDED2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_6366E8E9454E5E1EB5B312A8374CC74F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_44E70A0B69C6C459709312A8374CDED2" xlink:to="loc_us-gaap_StatementTable_6366E8E9454E5E1EB5B312A8374CC74F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_6AEC453D5C6C8CB42B7812A8374CE14F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_6366E8E9454E5E1EB5B312A8374CC74F" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_6AEC453D5C6C8CB42B7812A8374CE14F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_45DC1B3D4E4A8AA1945D12A8374C76BC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_6AEC453D5C6C8CB42B7812A8374CE14F" xlink:to="loc_us-gaap_EquityComponentDomain_45DC1B3D4E4A8AA1945D12A8374C76BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_F0A60C181D73E7936A8C12A8374CEF98" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_45DC1B3D4E4A8AA1945D12A8374C76BC" xlink:to="loc_us-gaap_CommonStockMember_F0A60C181D73E7936A8C12A8374CEF98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_E7420CA501AD7314D37412A8374C88D5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_45DC1B3D4E4A8AA1945D12A8374C76BC" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_E7420CA501AD7314D37412A8374C88D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_9AFFE0A3C224122A917612A8374C8343" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_45DC1B3D4E4A8AA1945D12A8374C76BC" xlink:to="loc_us-gaap_RetainedEarningsMember_9AFFE0A3C224122A917612A8374C8343" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember_02BE37B0246513D4587C12A8374C6C85" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_45DC1B3D4E4A8AA1945D12A8374C76BC" xlink:to="loc_us-gaap_TreasuryStockMember_02BE37B0246513D4587C12A8374C6C85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_9AEB3155B654F1A6C8DF12A8374C035C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_45DC1B3D4E4A8AA1945D12A8374C76BC" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_9AEB3155B654F1A6C8DF12A8374C035C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_4B2EE91102C8CB27064A12A8374CDFB6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_6366E8E9454E5E1EB5B312A8374CC74F" xlink:to="loc_us-gaap_StatementLineItems_4B2EE91102C8CB27064A12A8374CDFB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4B2EE91102C8CB27064A12A8374CDFB6" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_744647515B43E66851EA12A8374CACF6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_StockholdersEquity_744647515B43E66851EA12A8374CACF6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_02C32043EE5A2D9BDFE512A8374C2486" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_02C32043EE5A2D9BDFE512A8374C2486" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_BDFC72EDF08C9AC880EA12A8374CD660" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_NetIncomeLoss_BDFC72EDF08C9AC880EA12A8374CD660" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_83764C3ACF371D1AC28A12A8374C3BE8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_83764C3ACF371D1AC28A12A8374C3BE8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_F7445D543E1A6B87A3B912A8374C321F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_F7445D543E1A6B87A3B912A8374C321F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_C2388EF1A8806BCDD7FF12A8374C32BD" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_C2388EF1A8806BCDD7FF12A8374C32BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xlink:label="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_7976203321973C45956C12A8374C889B" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_7976203321973C45956C12A8374C889B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_5AEF5121F3D68B9BC9B912A8374C892C" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_5AEF5121F3D68B9BC9B912A8374C892C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_587BECA3FF85C30A7F1912A8374C1F2B" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_587BECA3FF85C30A7F1912A8374C1F2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_6CF878202D590B3F220612A8374CF46D" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_6CF878202D590B3F220612A8374CF46D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_60879B6D2A376784C15D12A8374C1A5A" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_60879B6D2A376784C15D12A8374C1A5A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_F1C58FB19AE6BBEBED4E12A8374C3C5D" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_F1C58FB19AE6BBEBED4E12A8374C3C5D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DividendsCommonStockCash" xlink:label="loc_us-gaap_DividendsCommonStockCash_E04ED36AAC5FB5C818AF12A8374C5628" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_DividendsCommonStockCash_E04ED36AAC5FB5C818AF12A8374C5628" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_3BC83FA0567D2D65115612A8374C7CA8" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_3BC83FA0567D2D65115612A8374C7CA8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_BE6CC9DC3F2538BBCB7712A8374C1829" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_StockholdersEquity_BE6CC9DC3F2538BBCB7712A8374C1829" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_2D187BED570F054F290512A8374C736F" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6A8ACD8755F9FA0F75FD12A8374C6CC1" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_2D187BED570F054F290512A8374C736F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/ConsolidatedStatementsOfStockholdersEquityParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_6F9AA9C650CACFFEA6488371B0E33C42" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_5336CB25DAD1879468298371B0E3E072" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_6F9AA9C650CACFFEA6488371B0E33C42" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_5336CB25DAD1879468298371B0E3E072" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccounts" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_A7FFFF34B4F79A9D1F4D8371AF8BE210" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SupplementalBalanceSheetDisclosuresTextBlock" xlink:label="loc_us-gaap_SupplementalBalanceSheetDisclosuresTextBlock_2DCCE64E83619E0356638371AF8BA290" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_A7FFFF34B4F79A9D1F4D8371AF8BE210" xlink:to="loc_us-gaap_SupplementalBalanceSheetDisclosuresTextBlock_2DCCE64E83619E0356638371AF8BA290" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsActivityInAllowanceForDoubtfulAccountsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_2894F1084FDEFF8B63D58371AFBAAB6A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_329E41EFCAB49ED86D738371AFBA885A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_2894F1084FDEFF8B63D58371AFBAAB6A" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_329E41EFCAB49ED86D738371AFBA885A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_09516E2EDAE664B9A89E8371AFBA114C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_329E41EFCAB49ED86D738371AFBA885A" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_09516E2EDAE664B9A89E8371AFBA114C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_7248783A6B851F8E65438371AFBA110E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_329E41EFCAB49ED86D738371AFBA885A" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_7248783A6B851F8E65438371AFBA110E" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_AllowanceForDoubtfulAccountsReceivableWriteOffsRecoveries" xlink:label="loc_powl_AllowanceForDoubtfulAccountsReceivableWriteOffsRecoveries_8E70D8BF33905D02250E8371AFBA43B7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_329E41EFCAB49ED86D738371AFBA885A" xlink:to="loc_powl_AllowanceForDoubtfulAccountsReceivableWriteOffsRecoveries_8E70D8BF33905D02250E8371AFBA43B7" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_IncreaseDecreaseDueToForeignCurrencyTranslation" xlink:label="loc_powl_IncreaseDecreaseDueToForeignCurrencyTranslation_F313DCB767044BB1CA198371AFBAE76D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_329E41EFCAB49ED86D738371AFBA885A" xlink:to="loc_powl_IncreaseDecreaseDueToForeignCurrencyTranslation_F313DCB767044BB1CA198371AFBAE76D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_05919151BF2D5C2BF6AB8371AFBA050C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_329E41EFCAB49ED86D738371AFBA885A" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_05919151BF2D5C2BF6AB8371AFBA050C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsActivityInWarrantyAccrualDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_55E1958F287E154EB7798371AFABBE42" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward" xlink:label="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_6EED78D12C52D51216708371AFAB6C8F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_55E1958F287E154EB7798371AFABBE42" xlink:to="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_6EED78D12C52D51216708371AFAB6C8F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_A83F92DE681CB9E2AE568371AFABA88D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_6EED78D12C52D51216708371AFAB6C8F" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_A83F92DE681CB9E2AE568371AFABA88D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProductWarrantyAccrualWarrantiesIssued" xlink:label="loc_us-gaap_ProductWarrantyAccrualWarrantiesIssued_59848D8B1E59A92F32218371AFABF296" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_6EED78D12C52D51216708371AFAB6C8F" xlink:to="loc_us-gaap_ProductWarrantyAccrualWarrantiesIssued_59848D8B1E59A92F32218371AFABF296" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProductWarrantyAccrualPayments" xlink:label="loc_us-gaap_ProductWarrantyAccrualPayments_3F6DF2B4B25C415E0CCF8371AFAB14AC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_6EED78D12C52D51216708371AFAB6C8F" xlink:to="loc_us-gaap_ProductWarrantyAccrualPayments_3F6DF2B4B25C415E0CCF8371AFAB14AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss" xlink:label="loc_us-gaap_StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss_E4FB48E3992BF6F6A2408371AFABBAE1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_6EED78D12C52D51216708371AFAB6C8F" xlink:to="loc_us-gaap_StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss_E4FB48E3992BF6F6A2408371AFABBAE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_6E32E47B9D8B1EA4859B8371AFABADED" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_6EED78D12C52D51216708371AFAB6C8F" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_6E32E47B9D8B1EA4859B8371AFABADED" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsComponentsOfInventoriesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B519848A7C008154215F8371B102759E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryRawMaterialsAndSupplies" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSupplies_9817CBFF38997A1A04488371B102DA74" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B519848A7C008154215F8371B102759E" xlink:to="loc_us-gaap_InventoryRawMaterialsAndSupplies_9817CBFF38997A1A04488371B102DA74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryWorkInProcess" xlink:label="loc_us-gaap_InventoryWorkInProcess_B35D47FFF4CF9ACE104B8371B102474E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B519848A7C008154215F8371B102759E" xlink:to="loc_us-gaap_InventoryWorkInProcess_B35D47FFF4CF9ACE104B8371B102474E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryValuationReserves" xlink:label="loc_us-gaap_InventoryValuationReserves_82607A4EDE16572681868371B102B1F8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B519848A7C008154215F8371B102759E" xlink:to="loc_us-gaap_InventoryValuationReserves_82607A4EDE16572681868371B102B1F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_7F7543D2F4AC66303D128371B1027A2C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B519848A7C008154215F8371B102759E" xlink:to="loc_us-gaap_InventoryNet_7F7543D2F4AC66303D128371B1027A2C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsCostAndEstimatedEarningsOnUncompletedContractsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B2851E0044A572FB39588371B150520C" xlink:type="locator" />
    <link:loc xlink:href="powl-20180930.xsd#powl_CostsIncurredOnUncompletedContracts" xlink:label="loc_powl_CostsIncurredOnUncompletedContracts_7A5A34B673F5067A29AB8371B150AC8F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B2851E0044A572FB39588371B150520C" xlink:to="loc_powl_CostsIncurredOnUncompletedContracts_7A5A34B673F5067A29AB8371B150AC8F" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_EstimatedEarnings" xlink:label="loc_powl_EstimatedEarnings_443481257C2CCD64B7608371B150689D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B2851E0044A572FB39588371B150520C" xlink:to="loc_powl_EstimatedEarnings_443481257C2CCD64B7608371B150689D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReceivablesLongTermContractsOrPrograms" xlink:label="loc_us-gaap_ReceivablesLongTermContractsOrPrograms_7DD551380F9FD05B359C8371B1501121" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B2851E0044A572FB39588371B150520C" xlink:to="loc_us-gaap_ReceivablesLongTermContractsOrPrograms_7DD551380F9FD05B359C8371B1501121" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BilledContractReceivables" xlink:label="loc_us-gaap_BilledContractReceivables_918FFD007A9B9F54F7378371B1504C8A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B2851E0044A572FB39588371B150520C" xlink:to="loc_us-gaap_BilledContractReceivables_918FFD007A9B9F54F7378371B1504C8A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnbilledContractsReceivable" xlink:label="loc_us-gaap_UnbilledContractsReceivable_3F22ECE29449B34E087A8371B150E73F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B2851E0044A572FB39588371B150520C" xlink:to="loc_us-gaap_UnbilledContractsReceivable_3F22ECE29449B34E087A8371B150E73F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractReceivablesAbstract" xlink:label="loc_us-gaap_ContractReceivablesAbstract_CEE71AF83FAA0EEEA71A8371B1504097" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B2851E0044A572FB39588371B150520C" xlink:to="loc_us-gaap_ContractReceivablesAbstract_CEE71AF83FAA0EEEA71A8371B1504097" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear" xlink:label="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear_2C70FDEF09B2724A5F878371B150ECEC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractReceivablesAbstract_CEE71AF83FAA0EEEA71A8371B1504097" xlink:to="loc_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear_2C70FDEF09B2724A5F878371B150ECEC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BillingsInExcessOfCostCurrent" xlink:label="loc_us-gaap_BillingsInExcessOfCostCurrent_24D9AEC7402497074AA88371B150123A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractReceivablesAbstract_CEE71AF83FAA0EEEA71A8371B1504097" xlink:to="loc_us-gaap_BillingsInExcessOfCostCurrent_24D9AEC7402497074AA88371B150123A" xlink:type="arc" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractReceivablesAbstract_CEE71AF83FAA0EEEA71A8371B1504097" xlink:to="loc_us-gaap_UnbilledContractsReceivable_3F22ECE29449B34E087A8371B150E73F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_FCBE82A177C9211D8B218371B2C51C02" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_E31578369B18EC2F80198371B2C5186C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_FCBE82A177C9211D8B218371B2C51C02" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_E31578369B18EC2F80198371B2C5186C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_D6D0206A13221B3D2E598371B2C5E6AE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_E31578369B18EC2F80198371B2C5186C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_D6D0206A13221B3D2E598371B2C5E6AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F688DA6466BE6C4792718371B2C59B3B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_D6D0206A13221B3D2E598371B2C5E6AE" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F688DA6466BE6C4792718371B2C59B3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsHeldUnderCapitalLeasesMember" xlink:label="loc_us-gaap_AssetsHeldUnderCapitalLeasesMember_6F3515F9A3A027EB65018371B2C55048" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F688DA6466BE6C4792718371B2C59B3B" xlink:to="loc_us-gaap_AssetsHeldUnderCapitalLeasesMember_6F3515F9A3A027EB65018371B2C55048" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_B1C96A97EE0CF4917DCF8371B2C55A2A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_E31578369B18EC2F80198371B2C5186C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_B1C96A97EE0CF4917DCF8371B2C55A2A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_9371090A421175B865468371B2C51C10" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_B1C96A97EE0CF4917DCF8371B2C55A2A" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_9371090A421175B865468371B2C51C10" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_30C46D283C6A05A84F4C8371B2C55384" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_B1C96A97EE0CF4917DCF8371B2C55A2A" xlink:to="loc_us-gaap_Depreciation_30C46D283C6A05A84F4C8371B2C55384" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsScheduleOfPropertyPlantAndEquipmentDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B924FB0DA61CE450E1A18371AFCAD7F7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5F96D6D1C952889E479B8371AFCA5A28" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_B924FB0DA61CE450E1A18371AFCAD7F7" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5F96D6D1C952889E479B8371AFCA5A28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ED12F70DB2658878BCD78371AFCA6C95" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5F96D6D1C952889E479B8371AFCA5A28" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ED12F70DB2658878BCD78371AFCA6C95" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_72ED4A79387767E6B7DF8371AFCA9BA8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ED12F70DB2658878BCD78371AFCA6C95" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_72ED4A79387767E6B7DF8371AFCA9BA8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LandMember" xlink:label="loc_us-gaap_LandMember_917DE3ED743C7A39AAED8371AFCA4DAF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_72ED4A79387767E6B7DF8371AFCA9BA8" xlink:to="loc_us-gaap_LandMember_917DE3ED743C7A39AAED8371AFCA4DAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BuildingAndBuildingImprovementsMember" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_1AE11DE377A8497B16C78371AFCA4D73" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_72ED4A79387767E6B7DF8371AFCA9BA8" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_1AE11DE377A8497B16C78371AFCA4D73" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_3F3482F5EA9F36AEEEAF8371AFCA54B6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_72ED4A79387767E6B7DF8371AFCA9BA8" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_3F3482F5EA9F36AEEEAF8371AFCA54B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_B3FB09F59BF2A75DE7D38371AFCA60E2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_72ED4A79387767E6B7DF8371AFCA9BA8" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_B3FB09F59BF2A75DE7D38371AFCA60E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="loc_us-gaap_ConstructionInProgressMember_D5854B5283E0889931E98371AFCA58C4" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_72ED4A79387767E6B7DF8371AFCA9BA8" xlink:to="loc_us-gaap_ConstructionInProgressMember_D5854B5283E0889931E98371AFCA58C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_D8F916F4CBAAB4FE84FE8371AFCA97F4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5F96D6D1C952889E479B8371AFCA5A28" xlink:to="loc_srt_RangeAxis_D8F916F4CBAAB4FE84FE8371AFCA97F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_BF223C8B5A2AE3BF816C8371AFCAEC73" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_D8F916F4CBAAB4FE84FE8371AFCA97F4" xlink:to="loc_srt_RangeMember_BF223C8B5A2AE3BF816C8371AFCAEC73" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_797606A802405F58E03D8371AFCA35E3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_BF223C8B5A2AE3BF816C8371AFCAEC73" xlink:to="loc_srt_MinimumMember_797606A802405F58E03D8371AFCA35E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_2232B15788E33E102C588371AFCAEEFF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_BF223C8B5A2AE3BF816C8371AFCAEC73" xlink:to="loc_srt_MaximumMember_2232B15788E33E102C588371AFCAEEFF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2808872F6E2283AA40358371AFCABB06" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5F96D6D1C952889E479B8371AFCA5A28" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2808872F6E2283AA40358371AFCABB06" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_9043D6329AEBB86F91BF8371AFCAEF42" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2808872F6E2283AA40358371AFCABB06" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_9043D6329AEBB86F91BF8371AFCAEF42" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_5411DB850B031064E5918371AFCA0084" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2808872F6E2283AA40358371AFCABB06" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_5411DB850B031064E5918371AFCA0084" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_260783BDF27C31DDDD318371AFCA6D86" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2808872F6E2283AA40358371AFCABB06" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_260783BDF27C31DDDD318371AFCA6D86" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_894B96996DB2E058DFBD8371AFCAA2F1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2808872F6E2283AA40358371AFCABB06" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_894B96996DB2E058DFBD8371AFCAA2F1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/DetailOfSelectedBalanceSheetAccountsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_691880E28B469790A7918371B0E366FF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock" xlink:label="loc_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_991790E61EF1C615E45C8371B0E33D85" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_691880E28B469790A7918371B0E366FF" xlink:to="loc_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_991790E61EF1C615E45C8371B0E33D85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_2099AF383EAA70CE65748371B0E37221" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_691880E28B469790A7918371B0E366FF" xlink:to="loc_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_2099AF383EAA70CE65748371B0E37221" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostsInExcessOfBillingsAndBillingsInExcessOfCostsTableTextBlock" xlink:label="loc_us-gaap_CostsInExcessOfBillingsAndBillingsInExcessOfCostsTableTextBlock_A411F3FC975CC836C8228371B0E3EC92" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_691880E28B469790A7918371B0E366FF" xlink:to="loc_us-gaap_CostsInExcessOfBillingsAndBillingsInExcessOfCostsTableTextBlock_A411F3FC975CC836C8228371B0E3EC92" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_B7DC2184BC33FB35C28E8371B0E3DE5C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_691880E28B469790A7918371B0E366FF" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_B7DC2184BC33FB35C28E8371B0E3DE5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock_85198CDAA63552309EE28371B0E304B6" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_691880E28B469790A7918371B0E366FF" xlink:to="loc_us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock_85198CDAA63552309EE28371B0E304B6" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/DocumentAndEntityInformation" xlink:type="extended">
    <link:loc xlink:href="powl-20180930.xsd#powl_DocumentAndEntityInformationAbstract" xlink:label="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:type="locator" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_B723B50153A1B4A4002BA428BB22994B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityRegistrantName_B723B50153A1B4A4002BA428BB22994B" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_1B6398E413FDABF7FC04A428BB22D131" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityCentralIndexKey_1B6398E413FDABF7FC04A428BB22D131" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_28BA5DEAB44C4C54CC42A428BB229C27" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_DocumentType_28BA5DEAB44C4C54CC42A428BB229C27" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_0C084329BEF03C857F2FA428BB22F090" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_DocumentPeriodEndDate_0C084329BEF03C857F2FA428BB22F090" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_77ADDD89547AF2851F24A428BB226239" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_AmendmentFlag_77ADDD89547AF2851F24A428BB226239" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_2D40A6D8E815E59CC1C9A428BB22BEB0" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_DocumentFiscalYearFocus_2D40A6D8E815E59CC1C9A428BB22BEB0" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_21B18EBEC57A9E5154C8A428BB2264E7" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_DocumentFiscalPeriodFocus_21B18EBEC57A9E5154C8A428BB2264E7" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_BB54E5F82A6C7113459FA428BB22846F" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_CurrentFiscalYearEndDate_BB54E5F82A6C7113459FA428BB22846F" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_014D181EAC334A500CE4A428BB225F14" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityFilerCategory_014D181EAC334A500CE4A428BB225F14" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_1085249E6B6F569816F7A428BB22397B" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_1085249E6B6F569816F7A428BB22397B" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_26B1A2B735BCFF1287CEA428BB22F8BE" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityVoluntaryFilers_26B1A2B735BCFF1287CEA428BB22F8BE" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_E04E9F5E402784C3791DA428BB22D067" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityEmergingGrowthCompany_E04E9F5E402784C3791DA428BB22D067" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntitySmallBusiness" xlink:label="loc_dei_EntitySmallBusiness_9E76231C9943C84752F6A428BB220ED6" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntitySmallBusiness_9E76231C9943C84752F6A428BB220ED6" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_54807DAEB3F49108F18BA428BB226A32" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityCurrentReportingStatus_54807DAEB3F49108F18BA428BB226A32" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityShellCompany" xlink:label="loc_dei_EntityShellCompany_8681394660154521C812A428BB22F0FB" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityShellCompany_8681394660154521C812A428BB22F0FB" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_D82886783ACF8E09C0CAA428BB22F966" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_TradingSymbol_D82886783ACF8E09C0CAA428BB22F966" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat_2829FADA3894BF3981D2A428BB227ED9" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityPublicFloat_2829FADA3894BF3981D2A428BB227ED9" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_064D59EF7AC0A912C59FA428BB223890" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_powl_DocumentAndEntityInformationAbstract_8B8EB7F92111623DDEF1A428BB126159" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_064D59EF7AC0A912C59FA428BB223890" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/EarningsPerShare" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_395B190D2507134607808371B1ECBFFE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_6196E486B89BAC85E3398371B1ECB0DB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_395B190D2507134607808371B1ECBFFE" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_6196E486B89BAC85E3398371B1ECB0DB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_51351A3C5C9969E936480857D2A0C848" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_8D4CF95FFE78D2A1B7FE0857D2A09846" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_51351A3C5C9969E936480857D2A0C848" xlink:to="loc_us-gaap_NetIncomeLoss_8D4CF95FFE78D2A1B7FE0857D2A09846" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_C92290D000E75E382EBB0857D2A0199E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_51351A3C5C9969E936480857D2A0C848" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_C92290D000E75E382EBB0857D2A0199E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_748CA8A8846C1C0032A50857D2A0A639" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_C92290D000E75E382EBB0857D2A0199E" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_748CA8A8846C1C0032A50857D2A0A639" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_44FAB308D5221A5845F60857D2A02779" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_C92290D000E75E382EBB0857D2A0199E" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_44FAB308D5221A5845F60857D2A02779" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_DB31CB01B317359C4A9C0857D2A07192" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_C92290D000E75E382EBB0857D2A0199E" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_DB31CB01B317359C4A9C0857D2A07192" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_7E39A26BDEEB6061160E0857D2A04383" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_51351A3C5C9969E936480857D2A0C848" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_7E39A26BDEEB6061160E0857D2A04383" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_CAA4AEE18D993FEA8E6A0857D2A0D463" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_7E39A26BDEEB6061160E0857D2A04383" xlink:to="loc_us-gaap_EarningsPerShareBasic_CAA4AEE18D993FEA8E6A0857D2A0D463" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_1E2BE4DECC038E1BCAF10857D2A0A867" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_7E39A26BDEEB6061160E0857D2A04383" xlink:to="loc_us-gaap_EarningsPerShareDiluted_1E2BE4DECC038E1BCAF10857D2A0A867" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/EarningsPerShareTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_69DB23666FF73E44D3C58371B0F2EC6D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_767DD35B3A285FE9F01F8371B0F24AAD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_69DB23666FF73E44D3C58371B0F2EC6D" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_767DD35B3A285FE9F01F8371B0F24AAD" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/EmployeeBenefitPlans" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_696977557263D491CE3C8371B15F78A9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_506F5C3884341CD8F9368371B15FCF24" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_696977557263D491CE3C8371B15F78A9" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_506F5C3884341CD8F9368371B15FCF24" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/EmployeeBenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_D15392D729A038BF8C040AF21ACBDD46" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualPostretirementBenefitsTable" xlink:label="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualPostretirementBenefitsTable_3FBC2F4ECCF1CCD857A80AF21ACDCAAC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_D15392D729A038BF8C040AF21ACBDD46" xlink:to="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualPostretirementBenefitsTable_3FBC2F4ECCF1CCD857A80AF21ACDCAAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis_DEBB1DF791AD15C6DEE60AF21ACD0517" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualPostretirementBenefitsTable_3FBC2F4ECCF1CCD857A80AF21ACDCAAC" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis_DEBB1DF791AD15C6DEE60AF21ACD0517" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain" xlink:label="loc_us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain_B61512E5583F8FBB76510AF21ACE5976" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis_DEBB1DF791AD15C6DEE60AF21ACD0517" xlink:to="loc_us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain_B61512E5583F8FBB76510AF21ACE5976" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualByTypeOfCompensationPensionAndOtherPostretirementBenefitsMember" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualByTypeOfCompensationPensionAndOtherPostretirementBenefitsMember_48137A7E5209812B97E80AF21ACEEDCB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain_B61512E5583F8FBB76510AF21ACE5976" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualByTypeOfCompensationPensionAndOtherPostretirementBenefitsMember_48137A7E5209812B97E80AF21ACEEDCB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis_6A256F94FF1AC86EA4E60AF21ACE2F8B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualPostretirementBenefitsTable_3FBC2F4ECCF1CCD857A80AF21ACDCAAC" xlink:to="loc_invest_InvestmentIssuerAxis_6A256F94FF1AC86EA4E60AF21ACE2F8B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain_C9F7451FB585F662154E0AF21ACF948A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_invest_InvestmentIssuerAxis_6A256F94FF1AC86EA4E60AF21ACE2F8B" xlink:to="loc_invest_InvestmentIssuerDomain_C9F7451FB585F662154E0AF21ACF948A" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_CompanyOwnedLifeInsurancePoliciesMember" xlink:label="loc_powl_CompanyOwnedLifeInsurancePoliciesMember_8E4D791C151C03650A260AF21ACFCCF0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_invest_InvestmentIssuerDomain_C9F7451FB585F662154E0AF21ACF948A" xlink:to="loc_powl_CompanyOwnedLifeInsurancePoliciesMember_8E4D791C151C03650A260AF21ACFCCF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetirementPlanTypeAxis" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_014303C93F47AB8B84700AF21ACF118B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualPostretirementBenefitsTable_3FBC2F4ECCF1CCD857A80AF21ACDCAAC" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_014303C93F47AB8B84700AF21ACF118B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetirementPlanTypeDomain" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_5A64B1B04656CA8C94A70AF21AD04DCB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_014303C93F47AB8B84700AF21ACF118B" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_5A64B1B04656CA8C94A70AF21AD04DCB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPostretirementHealthCoverageMember" xlink:label="loc_us-gaap_DefinedBenefitPostretirementHealthCoverageMember_BE40F01A9F984588390F0AF21AD09E5A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_5A64B1B04656CA8C94A70AF21AD04DCB" xlink:to="loc_us-gaap_DefinedBenefitPostretirementHealthCoverageMember_BE40F01A9F984588390F0AF21AD09E5A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_E3AE3474AB47943E21500AF21AD06075" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualPostretirementBenefitsTable_3FBC2F4ECCF1CCD857A80AF21ACDCAAC" xlink:to="loc_srt_RangeAxis_E3AE3474AB47943E21500AF21AD06075" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_D642F0780D61023182400AF21AD084BE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_E3AE3474AB47943E21500AF21AD06075" xlink:to="loc_srt_RangeMember_D642F0780D61023182400AF21AD084BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_1332B955E3B23B80CF3B0AF21AD130ED" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_D642F0780D61023182400AF21AD084BE" xlink:to="loc_srt_MinimumMember_1332B955E3B23B80CF3B0AF21AD130ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_12ED09462A459DEE32730AF21AD15F77" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_D642F0780D61023182400AF21AD084BE" xlink:to="loc_srt_MaximumMember_12ED09462A459DEE32730AF21AD15F77" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualPostretirementBenefitsTable_3FBC2F4ECCF1CCD857A80AF21ACDCAAC" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedContributionPlanCostRecognized" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_1F8AC05613A45FCA43810AF21AD2B9A2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_1F8AC05613A45FCA43810AF21AD2B9A2" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredCompensationArrangementWithIndividualMaximumEmployeeSubscriptionRate" xlink:label="loc_powl_DeferredCompensationArrangementWithIndividualMaximumEmployeeSubscriptionRate_06436DFA04B3A8BBA1790AF21AD29992" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_powl_DeferredCompensationArrangementWithIndividualMaximumEmployeeSubscriptionRate_06436DFA04B3A8BBA1790AF21AD29992" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredCompensationArrangementWithIndividualMaximumContractualAmountBonus" xlink:label="loc_powl_DeferredCompensationArrangementWithIndividualMaximumContractualAmountBonus_52ADB168050EA15FF14B0AF21AD31B20" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_powl_DeferredCompensationArrangementWithIndividualMaximumContractualAmountBonus_52ADB168050EA15FF14B0AF21AD31B20" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredCompensationArrangementWithIndividualCompensationAdjustmentIncomeExpense" xlink:label="loc_powl_DeferredCompensationArrangementWithIndividualCompensationAdjustmentIncomeExpense_DB2E231E826FA41DBDEC0AF21AD32CD2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_powl_DeferredCompensationArrangementWithIndividualCompensationAdjustmentIncomeExpense_DB2E231E826FA41DBDEC0AF21AD32CD2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationPlanAssets" xlink:label="loc_us-gaap_DeferredCompensationPlanAssets_A0E1E16A5BC27E818A2B0AF21AD3928E" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_us-gaap_DeferredCompensationPlanAssets_A0E1E16A5BC27E818A2B0AF21AD3928E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent" xlink:label="loc_us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent_19B16D94AAE1CBE6233B0AF21AD37F2A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent_19B16D94AAE1CBE6233B0AF21AD37F2A" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredCompensationArrangementWithIndividualAgeOfIndividual" xlink:label="loc_powl_DeferredCompensationArrangementWithIndividualAgeOfIndividual_E74B19980DE2481607B40AF21AD317DE" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_powl_DeferredCompensationArrangementWithIndividualAgeOfIndividual_E74B19980DE2481607B40AF21AD317DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1_A3CCC35ED1E0474049970AF21AD40D1F" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1_A3CCC35ED1E0474049970AF21AD40D1F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability_39ECA0A39529D3D0F9FF0AF21AD481B8" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability_39ECA0A39529D3D0F9FF0AF21AD481B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashSurrenderValueOfLifeInsurance" xlink:label="loc_us-gaap_CashSurrenderValueOfLifeInsurance_A4A1A287A19BCA4C62F30AF21AD46E61" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_us-gaap_CashSurrenderValueOfLifeInsurance_A4A1A287A19BCA4C62F30AF21AD46E61" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromLifeInsurancePolicies" xlink:label="loc_us-gaap_ProceedsFromLifeInsurancePolicies_14767821937D475696B40AF21AD4205A" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_us-gaap_ProceedsFromLifeInsurancePolicies_14767821937D475696B40AF21AD4205A" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DefinedBenefitPlanEmployeeCoverageAgeOfIndividual" xlink:label="loc_powl_DefinedBenefitPlanEmployeeCoverageAgeOfIndividual_9554B0F004A461D18B7A0AF21AD49438" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_powl_DefinedBenefitPlanEmployeeCoverageAgeOfIndividual_9554B0F004A461D18B7A0AF21AD49438" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xlink:label="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_B893C13F9FF318AAA0630AF21AD5DE35" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_B893C13F9FF318AAA0630AF21AD5DE35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_57EF8693510D14BF9E6A0AF21AD58401" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems_197514B1BCFC11F1C7490AF21AD21DA0" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_57EF8693510D14BF9E6A0AF21AD58401" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/FairValueMeasurements" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_BF0FB403B94585F149D38371B2A56F04" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_2E4550E8535B7AFE0D488371B2A5D96B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_BF0FB403B94585F149D38371B2A56F04" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_2E4550E8535B7AFE0D488371B2A5D96B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/FairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_EFAD7292370CC6087BDD17AD0E1A1FC7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B5AC80AED7C4A5986FE817AD0E1A4746" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_EFAD7292370CC6087BDD17AD0E1A1FC7" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B5AC80AED7C4A5986FE817AD0E1A4746" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_871832D79C0C6B8D104C17AD0E1A13E7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B5AC80AED7C4A5986FE817AD0E1A4746" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_871832D79C0C6B8D104C17AD0E1A13E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_E8BFB894C0B8C934062417AD0E1A7845" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_871832D79C0C6B8D104C17AD0E1A13E7" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_E8BFB894C0B8C934062417AD0E1A7845" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_7F8D0FA5B0DBB784FC6917AD0E1A0E6A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_E8BFB894C0B8C934062417AD0E1A7845" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_7F8D0FA5B0DBB784FC6917AD0E1A0E6A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_6B0E782245F014665E2F17AD0E1A3647" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B5AC80AED7C4A5986FE817AD0E1A4746" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_6B0E782245F014665E2F17AD0E1A3647" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1FC4D521758876E14B4717AD0E1A2F3C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_6B0E782245F014665E2F17AD0E1A3647" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1FC4D521758876E14B4717AD0E1A2F3C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_CD7401C305321F7E3A6117AD0E1A50B3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1FC4D521758876E14B4717AD0E1A2F3C" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_CD7401C305321F7E3A6117AD0E1A50B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_930FABE0657ECA81546217AD0E1AD271" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1FC4D521758876E14B4717AD0E1A2F3C" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_930FABE0657ECA81546217AD0E1AD271" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_93248541ED7A37783B7D17AD0E1AE5C5" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1FC4D521758876E14B4717AD0E1A2F3C" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_93248541ED7A37783B7D17AD0E1AE5C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_EB884139ADB6021C1EB317AD0E1AA84C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B5AC80AED7C4A5986FE817AD0E1A4746" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_EB884139ADB6021C1EB317AD0E1AA84C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_1D620191CF7C5BBD92A517AD0E1AF9D1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_EB884139ADB6021C1EB317AD0E1AA84C" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_1D620191CF7C5BBD92A517AD0E1AF9D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_7FA9018F02A9091AC0AD17AD0E1A31F9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_1D620191CF7C5BBD92A517AD0E1AF9D1" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_7FA9018F02A9091AC0AD17AD0E1A31F9" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_ShorttermInvestmentsFairValueDisclosure" xlink:label="loc_powl_ShorttermInvestmentsFairValueDisclosure_809E822841A07586FFAB17AD0E1A1507" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_1D620191CF7C5BBD92A517AD0E1AF9D1" xlink:to="loc_powl_ShorttermInvestmentsFairValueDisclosure_809E822841A07586FFAB17AD0E1A1507" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_RestrictedCashFairValueDisclosure" xlink:label="loc_powl_RestrictedCashFairValueDisclosure_3CE322F76DC5D5EDFF7F17AD0E1A4B4B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_1D620191CF7C5BBD92A517AD0E1AF9D1" xlink:to="loc_powl_RestrictedCashFairValueDisclosure_3CE322F76DC5D5EDFF7F17AD0E1A4B4B" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredCompensationPlanAssetsFairValueDisclosure" xlink:label="loc_powl_DeferredCompensationPlanAssetsFairValueDisclosure_9CCEB4372BFFDB5F400A17AD0E1AC60C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_1D620191CF7C5BBD92A517AD0E1AF9D1" xlink:to="loc_powl_DeferredCompensationPlanAssetsFairValueDisclosure_9CCEB4372BFFDB5F400A17AD0E1AC60C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosureAbstract" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_333C94D76B863D49D4F217AD0E1A4DBF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_EB884139ADB6021C1EB317AD0E1AA84C" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_333C94D76B863D49D4F217AD0E1A4DBF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent" xlink:label="loc_us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent_A38490D3FE05FE66E77F17AD0E1A72CB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_333C94D76B863D49D4F217AD0E1A4DBF" xlink:to="loc_us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent_A38490D3FE05FE66E77F17AD0E1A72CB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/FairValueMeasurementsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_3B09DC412898DA1A6AA78371B131B0FC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_9FB87FECDE6CC71197458371B131B207" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_3B09DC412898DA1A6AA78371B131B0FC" xlink:to="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_9FB87FECDE6CC71197458371B131B207" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/GeographicInformation" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_CD9253DF03117A0956D58371B1BD06BA" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_F2690781F442253B1C7F8371B1BD9B57" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_CD9253DF03117A0956D58371B1BD06BA" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_F2690781F442253B1C7F8371B1BD9B57" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/GeographicInformationScheduleOfLongLivedAssetsByGeographicalAreasDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_8173D0F324CAFD0F3EDA8371B27721A0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_37EB241CBD6A6DD3C11B8371B277077A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_8173D0F324CAFD0F3EDA8371B27721A0" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_37EB241CBD6A6DD3C11B8371B277077A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis_76FB9464FDDD565EB2EB8371B27767B5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_37EB241CBD6A6DD3C11B8371B277077A" xlink:to="loc_srt_StatementGeographicalAxis_76FB9464FDDD565EB2EB8371B27767B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_FFAB703FCCB82E8E32678371B277CA66" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementGeographicalAxis_76FB9464FDDD565EB2EB8371B27767B5" xlink:to="loc_srt_SegmentGeographicalDomain_FFAB703FCCB82E8E32678371B277CA66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_90E9E1E268B2D8C7B51A8371B277102C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_FFAB703FCCB82E8E32678371B277CA66" xlink:to="loc_country_US_90E9E1E268B2D8C7B51A8371B277102C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_CA" xlink:label="loc_country_CA_57C2CB510FB0C34C11078371B277C95B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_FFAB703FCCB82E8E32678371B277CA66" xlink:to="loc_country_CA_57C2CB510FB0C34C11078371B277C95B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_GB" xlink:label="loc_country_GB_47C512FED05EF49F87458371B277B813" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_FFAB703FCCB82E8E32678371B277CA66" xlink:to="loc_country_GB_47C512FED05EF49F87458371B277B813" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_3D8E10AFCBE1335161438371B27744F0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_37EB241CBD6A6DD3C11B8371B277077A" xlink:to="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_3D8E10AFCBE1335161438371B27744F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_3B988C7D30F4DD4526C78371B277413D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_3D8E10AFCBE1335161438371B27744F0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_3B988C7D30F4DD4526C78371B277413D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/GeographicInformationScheduleOfRevenuesFromExternalCustomersByGeographicalAreasDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_D155E97DC2CB6D8DC16A05CFB0F2F687" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_3365E08D60CFA87A66E805CFB0F20F66" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_D155E97DC2CB6D8DC16A05CFB0F2F687" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_3365E08D60CFA87A66E805CFB0F20F66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis_826E5A4601562E997FAA05CFB0F2333A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_3365E08D60CFA87A66E805CFB0F20F66" xlink:to="loc_srt_StatementGeographicalAxis_826E5A4601562E997FAA05CFB0F2333A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_C8CE0A400AACD7F58EC005CFB0F228AA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementGeographicalAxis_826E5A4601562E997FAA05CFB0F2333A" xlink:to="loc_srt_SegmentGeographicalDomain_C8CE0A400AACD7F58EC005CFB0F228AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_C7A6C74B7D3D1C76A94405CFB0F23965" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_C8CE0A400AACD7F58EC005CFB0F228AA" xlink:to="loc_country_US_C7A6C74B7D3D1C76A94405CFB0F23965" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_CA" xlink:label="loc_country_CA_E37BA7301E03BF8AB50105CFB0F24D55" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_C8CE0A400AACD7F58EC005CFB0F228AA" xlink:to="loc_country_CA_E37BA7301E03BF8AB50105CFB0F24D55" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_MiddleEastAndAfricaMember" xlink:label="loc_powl_MiddleEastAndAfricaMember_3A2486334F85C9FD642405F1589CA61F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_C8CE0A400AACD7F58EC005CFB0F228AA" xlink:to="loc_powl_MiddleEastAndAfricaMember_3A2486334F85C9FD642405F1589CA61F" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_FAREASTMember" xlink:label="loc_powl_FAREASTMember_68CB49D696A8CADCD36F05ED778875A7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_C8CE0A400AACD7F58EC005CFB0F228AA" xlink:to="loc_powl_FAREASTMember_68CB49D696A8CADCD36F05ED778875A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_EuropeMember" xlink:label="loc_srt_EuropeMember_9767F9922496FB22333305CFB0F2A43C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_C8CE0A400AACD7F58EC005CFB0F228AA" xlink:to="loc_srt_EuropeMember_9767F9922496FB22333305CFB0F2A43C" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_MexicoCentralAmericaAndSouthAmericaMember" xlink:label="loc_powl_MexicoCentralAmericaAndSouthAmericaMember_758686C8B646C5A063EB05F0000BD2A7" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_C8CE0A400AACD7F58EC005CFB0F228AA" xlink:to="loc_powl_MexicoCentralAmericaAndSouthAmericaMember_758686C8B646C5A063EB05F0000BD2A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_21FE49E9C42B8384F06905CFB0F485F2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_3365E08D60CFA87A66E805CFB0F20F66" xlink:to="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_21FE49E9C42B8384F06905CFB0F485F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_3BCDE743F8E7E9C980E405CFB0F452EB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_21FE49E9C42B8384F06905CFB0F485F2" xlink:to="loc_us-gaap_Revenues_3BCDE743F8E7E9C980E405CFB0F452EB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/GeographicInformationTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_E8CE08C343A4A8717EED8371B1EC8457" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xlink:label="loc_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_1AE04A92A8AC0059520A8371B1EC3727" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_E8CE08C343A4A8717EED8371B1EC8457" xlink:to="loc_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock_1AE04A92A8AC0059520A8371B1EC3727" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock" xlink:label="loc_us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock_43279718CE98505DF5F18371B1EC4B51" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_E8CE08C343A4A8717EED8371B1EC8457" xlink:to="loc_us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock_43279718CE98505DF5F18371B1EC4B51" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/GoodwillAndIntangibleAssets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_F84019EDE0595999F84C8371B1CDD054" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_59F1C796F57399A7CAA28371B1CDAC4E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_F84019EDE0595999F84C8371B1CDD054" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_59F1C796F57399A7CAA28371B1CDAC4E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/GoodwillAndIntangibleAssetsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_55BB590EFD32A0D117A8085A5C3F47C2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_4567E08D46FAD6DC392F085A5C3FE300" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_55BB590EFD32A0D117A8085A5C3F47C2" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_4567E08D46FAD6DC392F085A5C3FE300" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A507C1497B9A1F2F73CF085A5C3F0C55" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_4567E08D46FAD6DC392F085A5C3FE300" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A507C1497B9A1F2F73CF085A5C3F0C55" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BBDCDCEE7527AFCFF818085A5C3F0F38" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A507C1497B9A1F2F73CF085A5C3F0C55" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BBDCDCEE7527AFCFF818085A5C3F0F38" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_PurchasedTechnologyMember" xlink:label="loc_powl_PurchasedTechnologyMember_DEC91CE03BC13FE3D725085A5C3F320D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BBDCDCEE7527AFCFF818085A5C3F0F38" xlink:to="loc_powl_PurchasedTechnologyMember_DEC91CE03BC13FE3D725085A5C3F320D" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_SupplyAgreementMember" xlink:label="loc_powl_SupplyAgreementMember_FAE66B754FB3A7F980D3085A5C3FB4C2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BBDCDCEE7527AFCFF818085A5C3F0F38" xlink:to="loc_powl_SupplyAgreementMember_FAE66B754FB3A7F980D3085A5C3FB4C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_A0052A9BA8B36C51E66B085A5C3FAE1D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_4567E08D46FAD6DC392F085A5C3FE300" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_A0052A9BA8B36C51E66B085A5C3FAE1D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_C25416611470CBF33046085A5C3F2364" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_A0052A9BA8B36C51E66B085A5C3FAE1D" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_C25416611470CBF33046085A5C3F2364" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherIncomeMember" xlink:label="loc_us-gaap_OtherIncomeMember_B5E2155DD0EE192C8013085A5C3F5931" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_C25416611470CBF33046085A5C3F2364" xlink:to="loc_us-gaap_OtherIncomeMember_B5E2155DD0EE192C8013085A5C3F5931" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_4567E08D46FAD6DC392F085A5C3FE300" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_E1FF93027EF3176E8322085A5C3F34CC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_us-gaap_Goodwill_E1FF93027EF3176E8322085A5C3F34CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_DD07D8B8098CD999D6A2085A5C3FF4E0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_DD07D8B8098CD999D6A2085A5C3FF4E0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_CE7D950F0143FD78492B085A5C3F7C7D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_CE7D950F0143FD78492B085A5C3F7C7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_2DFFDA4FB04275D38111085A5C3FBCE0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_2DFFDA4FB04275D38111085A5C3FBCE0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_C5AA59B4D77D51790F5B085A5C3F1C7D" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_C5AA59B4D77D51790F5B085A5C3F1C7D" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_CashReceivedFromAmendedSupplyAgreement" xlink:label="loc_powl_CashReceivedFromAmendedSupplyAgreement_C51334D48C8D499592EF085A5C4E348C" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_powl_CashReceivedFromAmendedSupplyAgreement_C51334D48C8D499592EF085A5C4E348C" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_AdditionalAmountPaidOnExecutionOfAgreement" xlink:label="loc_powl_AdditionalAmountPaidOnExecutionOfAgreement_E3F1C42F57B09F394A3D085A5C4EA992" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_powl_AdditionalAmountPaidOnExecutionOfAgreement_E3F1C42F57B09F394A3D085A5C4EA992" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_CA4446D98CAF2A7399C2085A5C4E7CC8" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_CA4446D98CAF2A7399C2085A5C4E7CC8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredRevenueAndCredits" xlink:label="loc_us-gaap_DeferredRevenueAndCredits_6A1E14D8879225CD32BE085A5C4E0789" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_us-gaap_DeferredRevenueAndCredits_6A1E14D8879225CD32BE085A5C4E0789" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_C773B012BA95B3427FB5085A5C4E7FE8" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_C773B012BA95B3427FB5085A5C4E7FE8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_11CDA7409CD5D6220264085A5C4EEA30" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7F0FBB15872E241E737F085A5C3FE590" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_11CDA7409CD5D6220264085A5C4EEA30" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/GoodwillAndIntangibleAssetsScheduleOfEstimatedAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A498DC96DC87A8D1766D84C8D18D2D7B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_700B9BFCE006679BFCEA84C8D18DA274" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A498DC96DC87A8D1766D84C8D18D2D7B" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_700B9BFCE006679BFCEA84C8D18DA274" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_8EF1200EDB7D0516C3FF84C8D18D6139" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_700B9BFCE006679BFCEA84C8D18DA274" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_8EF1200EDB7D0516C3FF84C8D18D6139" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_B046338D9423D0CD252E84C8D18E159F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_700B9BFCE006679BFCEA84C8D18DA274" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_B046338D9423D0CD252E84C8D18E159F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_DDE929BF513C4497D3BA84C8D18ED22E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_700B9BFCE006679BFCEA84C8D18DA274" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_DDE929BF513C4497D3BA84C8D18ED22E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_7E99AD1350BD2987474384C8D18E3C07" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_700B9BFCE006679BFCEA84C8D18DA274" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_7E99AD1350BD2987474384C8D18E3C07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_8D405630EDD1DFD77C2A84C8D18E8F4B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_700B9BFCE006679BFCEA84C8D18DA274" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_8D405630EDD1DFD77C2A84C8D18E8F4B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/GoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsSubjectToAmortizationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_D5EFC8442BA4C112CD6B8371B140A0F8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_C48AF2D0930494DBED028371B1406485" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_D5EFC8442BA4C112CD6B8371B140A0F8" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_C48AF2D0930494DBED028371B1406485" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_2F6BC86A43840CBAEBB88371B140925C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_C48AF2D0930494DBED028371B1406485" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_2F6BC86A43840CBAEBB88371B140925C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_2C3BC797C7BBADDBC0028371B1400D28" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_2F6BC86A43840CBAEBB88371B140925C" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_2C3BC797C7BBADDBC0028371B1400D28" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_PurchasedTechnologyMember" xlink:label="loc_powl_PurchasedTechnologyMember_A80EDE4F176FCF55E7828371B1409F66" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_2C3BC797C7BBADDBC0028371B1400D28" xlink:to="loc_powl_PurchasedTechnologyMember_A80EDE4F176FCF55E7828371B1409F66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3422F4A168DD817365158371B1401A37" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_C48AF2D0930494DBED028371B1406485" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3422F4A168DD817365158371B1401A37" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_AF87F8A57D73EAEAEF058371B140BF27" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3422F4A168DD817365158371B1401A37" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_AF87F8A57D73EAEAEF058371B140BF27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_4CA25CBF7D5C3E7F19EC8371B1408F0C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3422F4A168DD817365158371B1401A37" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_4CA25CBF7D5C3E7F19EC8371B1408F0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_137A09E4B7AC504994CD8371B140A6BE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3422F4A168DD817365158371B1401A37" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_137A09E4B7AC504994CD8371B140A6BE" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/GoodwillAndIntangibleAssetsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_7074D6A41EEBE7DA93FF8371AF9B734E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_6F11ED5E3147FE2EDA318371AF9B57D5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_7074D6A41EEBE7DA93FF8371AF9B734E" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_6F11ED5E3147FE2EDA318371AF9B57D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:label="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_99A9D671E7227A62202B8371AF9B2A08" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_7074D6A41EEBE7DA93FF8371AF9B734E" xlink:to="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_99A9D671E7227A62202B8371AF9B2A08" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_D361F1C3309C4D1241DC8371B1AD7FFD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_91B745C16B66FA74DD668371B1ADBAD5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_D361F1C3309C4D1241DC8371B1AD7FFD" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_91B745C16B66FA74DD668371B1ADBAD5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_FCAE608943364935FDA20AF32E066D45" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxContingencyTable" xlink:label="loc_us-gaap_IncomeTaxContingencyTable_B21118823BFEED8C83650AF32E064567" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_FCAE608943364935FDA20AF32E066D45" xlink:to="loc_us-gaap_IncomeTaxContingencyTable_B21118823BFEED8C83650AF32E064567" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxCreditCarryforwardAxis" xlink:label="loc_us-gaap_TaxCreditCarryforwardAxis_DDA629250449120618BE0AF32E06B85F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyTable_B21118823BFEED8C83650AF32E064567" xlink:to="loc_us-gaap_TaxCreditCarryforwardAxis_DDA629250449120618BE0AF32E06B85F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxCreditCarryforwardNameDomain" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_DBA08C0222C26AE7A6C90AF32E0676CB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardAxis_DDA629250449120618BE0AF32E06B85F" xlink:to="loc_us-gaap_TaxCreditCarryforwardNameDomain_DBA08C0222C26AE7A6C90AF32E0676CB" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_ResearchAndDevelopmentTaxCreditMember" xlink:label="loc_powl_ResearchAndDevelopmentTaxCreditMember_CDA2CBDBA16265849C820AF32E07E1D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TaxCreditCarryforwardNameDomain_DBA08C0222C26AE7A6C90AF32E0676CB" xlink:to="loc_powl_ResearchAndDevelopmentTaxCreditMember_CDA2CBDBA16265849C820AF32E07E1D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxContingencyLineItems" xlink:label="loc_us-gaap_IncomeTaxContingencyLineItems_4003F6CD6D985E077D840AF32E073E87" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyTable_B21118823BFEED8C83650AF32E064567" xlink:to="loc_us-gaap_IncomeTaxContingencyLineItems_4003F6CD6D985E077D840AF32E073E87" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_1EB64618347F344C1E080AF32E0762FC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_4003F6CD6D985E077D840AF32E073E87" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_1EB64618347F344C1E080AF32E0762FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_BF3CC25FFCE584A8D9BB0AF32E071FA0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_4003F6CD6D985E077D840AF32E073E87" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_BF3CC25FFCE584A8D9BB0AF32E071FA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxSettlementsDomestic" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxSettlementsDomestic_992FB73ABD0537ECA2440AF32E087BB0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_4003F6CD6D985E077D840AF32E073E87" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxSettlementsDomestic_992FB73ABD0537ECA2440AF32E087BB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_23E1ECF2F41533D7F1A30AF32E085FD7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_4003F6CD6D985E077D840AF32E073E87" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_23E1ECF2F41533D7F1A30AF32E085FD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UndistributedEarningsOfForeignSubsidiaries" xlink:label="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_B199D75364FB166419B10AF32E08667B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_4003F6CD6D985E077D840AF32E073E87" xlink:to="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_B199D75364FB166419B10AF32E08667B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_9B6FB974C232BF07C7BB0AF32E0889F9" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_4003F6CD6D985E077D840AF32E073E87" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_9B6FB974C232BF07C7BB0AF32E0889F9" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_UnrecognizedTaxBenefitsPercentageReductionsResultingFromLapseOfApplicableStatuteOfLimitations" xlink:label="loc_powl_UnrecognizedTaxBenefitsPercentageReductionsResultingFromLapseOfApplicableStatuteOfLimitations_236FE22220499571EA910AF32E084C2B" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_4003F6CD6D985E077D840AF32E073E87" xlink:to="loc_powl_UnrecognizedTaxBenefitsPercentageReductionsResultingFromLapseOfApplicableStatuteOfLimitations_236FE22220499571EA910AF32E084C2B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_FF70603D7DDF7B3858818371B1DCEFD5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:label="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_DF7DCB530B6AC6D52EB98371B1DC085D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_FF70603D7DDF7B3858818371B1DCEFD5" xlink:to="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_DF7DCB530B6AC6D52EB98371B1DC085D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_32D313CFC399A1279B278371B1DCF0D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_DF7DCB530B6AC6D52EB98371B1DC085D" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_32D313CFC399A1279B278371B1DCF0D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_58B317A4952C851385A68371B1DC7B69" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_DF7DCB530B6AC6D52EB98371B1DC085D" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_58B317A4952C851385A68371B1DC7B69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_28C7D93D75B0914AD7658371B1DCE73F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_DF7DCB530B6AC6D52EB98371B1DC085D" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_28C7D93D75B0914AD7658371B1DCE73F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_D68066FDE9AC5A9699308371B1DC2A5E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_DF7DCB530B6AC6D52EB98371B1DC085D" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_D68066FDE9AC5A9699308371B1DC2A5E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_E820A5140DA9206AF4FD8371B1DC09EC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_DF7DCB530B6AC6D52EB98371B1DC085D" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_E820A5140DA9206AF4FD8371B1DC09EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_E9C0CC415D50DADA361D8371B1DC2D2A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_DF7DCB530B6AC6D52EB98371B1DC085D" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_E9C0CC415D50DADA361D8371B1DC2D2A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxesScheduleOfComponentsOfDeferredIncomeTaxAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_BE25161D3FFC397266958371B3515F29" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrentClassificationAbstract" xlink:label="loc_us-gaap_DeferredTaxAssetsNetCurrentClassificationAbstract_C2AEA524B9F2D8E0ABEE8371B351DD8D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_BE25161D3FFC397266958371B3515F29" xlink:to="loc_us-gaap_DeferredTaxAssetsNetCurrentClassificationAbstract_C2AEA524B9F2D8E0ABEE8371B351DD8D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsGrossCurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsGrossCurrent_07AB10E9481BC91FA26F8371B351A4F2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetCurrentClassificationAbstract_C2AEA524B9F2D8E0ABEE8371B351DD8D" xlink:to="loc_us-gaap_DeferredTaxAssetsGrossCurrent_07AB10E9481BC91FA26F8371B351A4F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGrossCurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGrossCurrent_977A00007E5BA67599818371B35127E6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetCurrentClassificationAbstract_C2AEA524B9F2D8E0ABEE8371B351DD8D" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGrossCurrent_977A00007E5BA67599818371B35127E6" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredIncomeTaxAssetsLiabilitiesNetCurrent" xlink:label="loc_powl_DeferredIncomeTaxAssetsLiabilitiesNetCurrent_8776C2BCFF8EC74572A58371B3511AF8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetCurrentClassificationAbstract_C2AEA524B9F2D8E0ABEE8371B351DD8D" xlink:to="loc_powl_DeferredIncomeTaxAssetsLiabilitiesNetCurrent_8776C2BCFF8EC74572A58371B3511AF8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsNetNoncurrentClassificationAbstract" xlink:label="loc_us-gaap_DeferredTaxAssetsNetNoncurrentClassificationAbstract_6267C711E2791810454E8371B35132DD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_BE25161D3FFC397266958371B3515F29" xlink:to="loc_us-gaap_DeferredTaxAssetsNetNoncurrentClassificationAbstract_6267C711E2791810454E8371B35132DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsGrossNoncurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsGrossNoncurrent_9934EAC842966509DF4F8371B3511034" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetNoncurrentClassificationAbstract_6267C711E2791810454E8371B35132DD" xlink:to="loc_us-gaap_DeferredTaxAssetsGrossNoncurrent_9934EAC842966509DF4F8371B3511034" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGrossNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGrossNoncurrent_1CA821AB90F930BD4CAE8371B3512529" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetNoncurrentClassificationAbstract_6267C711E2791810454E8371B35132DD" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGrossNoncurrent_1CA821AB90F930BD4CAE8371B3512529" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredIncomeTaxAssetsLiabilitiesNetNoncurrent" xlink:label="loc_powl_DeferredIncomeTaxAssetsLiabilitiesNetNoncurrent_862F7CA3C743C0C643638371B351957A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetNoncurrentClassificationAbstract_6267C711E2791810454E8371B35132DD" xlink:to="loc_powl_DeferredIncomeTaxAssetsLiabilitiesNetNoncurrent_862F7CA3C743C0C643638371B351957A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_5E94656A8B6BC7D16EF98371B35172FE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_BE25161D3FFC397266958371B3515F29" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_5E94656A8B6BC7D16EF98371B35172FE" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxesScheduleOfComponentsOfIncomeTaxProvisionDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_9503C2624A4099B637358371B2F33FAB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_DD5AB81217BA459DD57D8371B2F351ED" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_9503C2624A4099B637358371B2F33FAB" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_DD5AB81217BA459DD57D8371B2F351ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_C1A61F88F0EC061EB5798371B2F3D2AC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_DD5AB81217BA459DD57D8371B2F351ED" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_C1A61F88F0EC061EB5798371B2F3D2AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_04216F3F192A09594EAD8371B2F31C71" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_DD5AB81217BA459DD57D8371B2F351ED" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_04216F3F192A09594EAD8371B2F31C71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_F3A78379A713DFF5EC908371B2F3019F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_DD5AB81217BA459DD57D8371B2F351ED" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_F3A78379A713DFF5EC908371B2F3019F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_3F51B60393D384071E548371B303AB6C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_DD5AB81217BA459DD57D8371B2F351ED" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_3F51B60393D384071E548371B303AB6C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_AD497655F9A08D32FB8E8371B3037653" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_9503C2624A4099B637358371B2F33FAB" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_AD497655F9A08D32FB8E8371B3037653" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_95E7F1287A75EEE3CD968371B303839E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_AD497655F9A08D32FB8E8371B3037653" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_95E7F1287A75EEE3CD968371B303839E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_A2039AF68F23FFCBAD968371B3032096" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_AD497655F9A08D32FB8E8371B3037653" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_A2039AF68F23FFCBAD968371B3032096" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_C30F0E8FB2EF9EF5DAF68371B3031D1E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_AD497655F9A08D32FB8E8371B3037653" xlink:to="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_C30F0E8FB2EF9EF5DAF68371B3031D1E" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredIncomeTaxProvision" xlink:label="loc_powl_DeferredIncomeTaxProvision_BBDA30FEC1169D375CDA8371B303FB03" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_AD497655F9A08D32FB8E8371B3037653" xlink:to="loc_powl_DeferredIncomeTaxProvision_BBDA30FEC1169D375CDA8371B303FB03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_3FD10B52BCB605BBF21F8371B303C005" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_9503C2624A4099B637358371B2F33FAB" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_3FD10B52BCB605BBF21F8371B303C005" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_75CD3C54CDFFF082DBEB668B1DA6B461" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_75CD3C54CDFFF082DBEB668B1DA6B461" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_6E8FF39190DA6F1D456F668B1DA63BDB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_6E8FF39190DA6F1D456F668B1DA63BDB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_B67CE2E1A7DA78394A0C668B1DA611DF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_B67CE2E1A7DA78394A0C668B1DA611DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions_31D11827BA4DDC1FA706668B1DA62BBC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions_31D11827BA4DDC1FA706668B1DA62BBC" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredTaxAssetsUniformCapitalizationAndInventory" xlink:label="loc_powl_DeferredTaxAssetsUniformCapitalizationAndInventory_606A695148E1FDB88D10668B1DA62A02" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_powl_DeferredTaxAssetsUniformCapitalizationAndInventory_606A695148E1FDB88D10668B1DA62A02" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_4746FCDAA58D22501FB2668B1DA62358" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_4746FCDAA58D22501FB2668B1DA62358" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_32F57814C8A238BAD36F668B1DA62DCC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_32F57814C8A238BAD36F668B1DA62DCC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves_7ED391DD8E52B9C3188B668B1DA6D198" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves_7ED391DD8E52B9C3188B668B1DA6D198" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_B74255DEAA7998BF1BC8668B1DA6568D" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_B74255DEAA7998BF1BC8668B1DA6568D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits_F85C4175B85AB1674FE9668B1DA62B1A" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits_F85C4175B85AB1674FE9668B1DA62B1A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_9FA45F14978BD142001C668B1DA614A5" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_9FA45F14978BD142001C668B1DA614A5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets" xlink:label="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_76F0BC55AF6015E97F1D668B1DA6E9B0" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_76F0BC55AF6015E97F1D668B1DA6E9B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_5F56972059F207423735668B1DA6E179" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_5F56972059F207423735668B1DA6E179" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_6D74D12347FEE1E5AAB8668B1DA633F7" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_40C677BB0303A0E36703668B1DA6FC8F" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_6D74D12347FEE1E5AAB8668B1DA633F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesClassificationAbstract" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesClassificationAbstract_693B88323CC5D1BAC9D8668B1DA685E6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_75CD3C54CDFFF082DBEB668B1DA6B461" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesClassificationAbstract_693B88323CC5D1BAC9D8668B1DA685E6" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_DeferredTaxLiabilitiesDepreciationAndAmortization" xlink:label="loc_powl_DeferredTaxLiabilitiesDepreciationAndAmortization_FB5E739C60F2F30C79B3668B1DA6DF69" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesClassificationAbstract_693B88323CC5D1BAC9D8668B1DA685E6" xlink:to="loc_powl_DeferredTaxLiabilitiesDepreciationAndAmortization_FB5E739C60F2F30C79B3668B1DA6DF69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_E959E50BE941B3B9FB02668B1DA6AD85" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesClassificationAbstract_693B88323CC5D1BAC9D8668B1DA685E6" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_E959E50BE941B3B9FB02668B1DA6AD85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_4DEF04E951E72E956C03668B1DA6E5C9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesClassificationAbstract_693B88323CC5D1BAC9D8668B1DA685E6" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_4DEF04E951E72E956C03668B1DA6E5C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_CB8CBB73F013CCF9ED84668B1DA6E332" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_75CD3C54CDFFF082DBEB668B1DA6B461" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_CB8CBB73F013CCF9ED84668B1DA6E332" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_A74B9E849082932087510AF32E0F04FC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_A74B9E849082932087510AF32E0F04FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E8FAFE9635AC53A6E9DB0AF32E0F2453" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E8FAFE9635AC53A6E9DB0AF32E0F2453" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_4BEA6E5F21629EA9134E0AF32E0FA6B8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_4BEA6E5F21629EA9134E0AF32E0FA6B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_19F3A2396A24520F6AEC0AF32E0F4041" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_19F3A2396A24520F6AEC0AF32E0F4041" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities_B8A9960A36759BF31EF60AF32E0FC513" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities_B8A9960A36759BF31EF60AF32E0FC513" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_EffectiveIncomeTaxRateReconciliationChangeInForeignValuationAllowance" xlink:label="loc_powl_EffectiveIncomeTaxRateReconciliationChangeInForeignValuationAllowance_CFA4A6FAF8D514485FDB0AF32E0F144D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_powl_EffectiveIncomeTaxRateReconciliationChangeInForeignValuationAllowance_CFA4A6FAF8D514485FDB0AF32E0F144D" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_EffectiveIncomeTaxRateReconciliationNOLCarrybackImpactOnDeductionsPercent" xlink:label="loc_powl_EffectiveIncomeTaxRateReconciliationNOLCarrybackImpactOnDeductionsPercent_20F4954D57ECAE871A520AF32E10C751" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_powl_EffectiveIncomeTaxRateReconciliationNOLCarrybackImpactOnDeductionsPercent_20F4954D57ECAE871A520AF32E10C751" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_2AFD07654E76B532C4330AF32E10ABAC" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_2AFD07654E76B532C4330AF32E10ABAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent_B10F1E935AB2C9D021FB0AF32E109E3F" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent_B10F1E935AB2C9D021FB0AF32E109E3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_C0F6FECF0D275952C61C0AF32E10BED3" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_EB31AD0E3A26C1AA64670AF32E0E3D2A" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_C0F6FECF0D275952C61C0AF32E10BED3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxesScheduleOfIncomeBeforeIncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_0CBF8DDF01B1DFA1C6378371AFBAFF7A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_52A14942C3A212D991608371AFBA31DD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_0CBF8DDF01B1DFA1C6378371AFBAFF7A" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_52A14942C3A212D991608371AFBA31DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_0412773A7615DA87844D8371AFBAB27E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_0CBF8DDF01B1DFA1C6378371AFBAFF7A" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_0412773A7615DA87844D8371AFBAB27E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F5B5675570749B939D6A8371AFBA633B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_0CBF8DDF01B1DFA1C6378371AFBAFF7A" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F5B5675570749B939D6A8371AFBA633B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxesScheduleOfValuationAllowanceDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_033DA474519DA64E4A078371B341C1A3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ValuationAllowanceTable" xlink:label="loc_us-gaap_ValuationAllowanceTable_ED5138F64DAFB5F83E778371B341AA8D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_033DA474519DA64E4A078371B341C1A3" xlink:to="loc_us-gaap_ValuationAllowanceTable_ED5138F64DAFB5F83E778371B341AA8D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_C1CF4183A253AEF7A9468371B341A9AB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowanceTable_ED5138F64DAFB5F83E778371B341AA8D" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_C1CF4183A253AEF7A9468371B341A9AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_A9DEF990A55EED0C17898371B34114F5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_C1CF4183A253AEF7A9468371B341A9AB" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_A9DEF990A55EED0C17898371B34114F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember" xlink:label="loc_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember_02CD688B697829F15C918371B3415238" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_A9DEF990A55EED0C17898371B34114F5" xlink:to="loc_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember_02CD688B697829F15C918371B3415238" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ValuationAllowanceLineItems" xlink:label="loc_us-gaap_ValuationAllowanceLineItems_545E24ED1DA12A9508AE8371B34157C4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowanceTable_ED5138F64DAFB5F83E778371B341AA8D" xlink:to="loc_us-gaap_ValuationAllowanceLineItems_545E24ED1DA12A9508AE8371B34157C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MovementInValuationAllowancesAndReservesRollForward" xlink:label="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_FE2E0C8B2DE905FA99488371B3419917" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowanceLineItems_545E24ED1DA12A9508AE8371B34157C4" xlink:to="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_FE2E0C8B2DE905FA99488371B3419917" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ValuationAllowancesAndReservesBalance" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_3BAF4A03B35E6054B2718371B3410157" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_FE2E0C8B2DE905FA99488371B3419917" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesBalance_3BAF4A03B35E6054B2718371B3410157" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_ValuationAllowancesAndReservesChargedOrCreditedToCostAndExpense" xlink:label="loc_powl_ValuationAllowancesAndReservesChargedOrCreditedToCostAndExpense_7773A75717AAEA387D298371B3412E6E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_FE2E0C8B2DE905FA99488371B3419917" xlink:to="loc_powl_ValuationAllowancesAndReservesChargedOrCreditedToCostAndExpense_7773A75717AAEA387D298371B3412E6E" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_ValuationAllowancesAndReservesChargedOrCreditedToOtherAccounts" xlink:label="loc_powl_ValuationAllowancesAndReservesChargedOrCreditedToOtherAccounts_78ABEB3BE7E4D93B4AB18371B34150C8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_FE2E0C8B2DE905FA99488371B3419917" xlink:to="loc_powl_ValuationAllowancesAndReservesChargedOrCreditedToOtherAccounts_78ABEB3BE7E4D93B4AB18371B34150C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ValuationAllowancesAndReservesBalance" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_D58B7C756F227332C6648371B3419C8B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_FE2E0C8B2DE905FA99488371B3419917" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesBalance_D58B7C756F227332C6648371B3419C8B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/IncomeTaxesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_B1FD79C52F3CB8F438658371B16FA0CD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_7115AD6F53A379F232DF8371B16F1A73" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B1FD79C52F3CB8F438658371B16FA0CD" xlink:to="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_7115AD6F53A379F232DF8371B16F1A73" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_D4F02503A05DF68369C38371B16FE34A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B1FD79C52F3CB8F438658371B16FA0CD" xlink:to="loc_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_D4F02503A05DF68369C38371B16FE34A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_18A793AFA1983706D7F58371B16F9E6F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B1FD79C52F3CB8F438658371B16FA0CD" xlink:to="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_18A793AFA1983706D7F58371B16F9E6F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_3642DD5647BEAC7AE5268371B16F3E5E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B1FD79C52F3CB8F438658371B16FA0CD" xlink:to="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_3642DD5647BEAC7AE5268371B16F3E5E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SummaryOfValuationAllowanceTextBlock" xlink:label="loc_us-gaap_SummaryOfValuationAllowanceTextBlock_DEC03099302BEA862B998371B16FCFF4" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B1FD79C52F3CB8F438658371B16FA0CD" xlink:to="loc_us-gaap_SummaryOfValuationAllowanceTextBlock_DEC03099302BEA862B998371B16FCFF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SummaryOfIncomeTaxContingenciesTextBlock" xlink:label="loc_us-gaap_SummaryOfIncomeTaxContingenciesTextBlock_4E8BCFA3947E0182FA688371B16F1D86" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_B1FD79C52F3CB8F438658371B16FA0CD" xlink:to="loc_us-gaap_SummaryOfIncomeTaxContingenciesTextBlock_4E8BCFA3947E0182FA688371B16F1D86" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/LongTermDebt" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_8F9EA7E6F0882901429D8371B19EB1B3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtTextBlock" xlink:label="loc_us-gaap_LongTermDebtTextBlock_ACD19AA520745902CB9B8371B19E1E38" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_8F9EA7E6F0882901429D8371B19EB1B3" xlink:to="loc_us-gaap_LongTermDebtTextBlock_ACD19AA520745902CB9B8371B19E1E38" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/LongTermDebtComponentsOfLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_FF70868EEF98D8C0F3808371B370A386" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_DBC49FEBC63AD226D83F8371B3706EC4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_FF70868EEF98D8C0F3808371B370A386" xlink:to="loc_us-gaap_LongTermDebt_DBC49FEBC63AD226D83F8371B3706EC4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_970637CFC705609C635B8371B3704FA2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_FF70868EEF98D8C0F3808371B370A386" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_970637CFC705609C635B8371B3704FA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_CF0DDBE52A559A2D407A8371B370B8C1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_FF70868EEF98D8C0F3808371B370A386" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_CF0DDBE52A559A2D407A8371B370B8C1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/LongTermDebtNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_22A92C6D9A59675546E80868502CAF58" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_1C28C925DBE022B91B0D0868502CB674" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_22A92C6D9A59675546E80868502CAF58" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_1C28C925DBE022B91B0D0868502CB674" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GuaranteeObligationsByNatureAxis" xlink:label="loc_us-gaap_GuaranteeObligationsByNatureAxis_BF87321EA3B2979EE5220868502C8512" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_1C28C925DBE022B91B0D0868502CB674" xlink:to="loc_us-gaap_GuaranteeObligationsByNatureAxis_BF87321EA3B2979EE5220868502C8512" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GuaranteeObligationsNatureDomain" xlink:label="loc_us-gaap_GuaranteeObligationsNatureDomain_385E9C3EA7E91151A6D80868502CEE59" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsByNatureAxis_BF87321EA3B2979EE5220868502C8512" xlink:to="loc_us-gaap_GuaranteeObligationsNatureDomain_385E9C3EA7E91151A6D80868502CEE59" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancialStandbyLetterOfCreditMember" xlink:label="loc_us-gaap_FinancialStandbyLetterOfCreditMember_F34690223641E04C63990868502C6E77" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteeObligationsNatureDomain_385E9C3EA7E91151A6D80868502CEE59" xlink:to="loc_us-gaap_FinancialStandbyLetterOfCreditMember_F34690223641E04C63990868502C6E77" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_B66BCA7D4C34A1FB77170868502C3CD2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_1C28C925DBE022B91B0D0868502CB674" xlink:to="loc_us-gaap_DebtInstrumentAxis_B66BCA7D4C34A1FB77170868502C3CD2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_DE076845AFF3D9343F6A0868502C3889" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_B66BCA7D4C34A1FB77170868502C3CD2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_DE076845AFF3D9343F6A0868502C3889" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_TheThirdAmendmentMember" xlink:label="loc_powl_TheThirdAmendmentMember_0BED1E833BBBDF3733AC0868502CA07F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_DE076845AFF3D9343F6A0868502C3889" xlink:to="loc_powl_TheThirdAmendmentMember_0BED1E833BBBDF3733AC0868502CA07F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_80596B418DF237E2E61B0868502C391C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_1C28C925DBE022B91B0D0868502CB674" xlink:to="loc_us-gaap_CreditFacilityAxis_80596B418DF237E2E61B0868502C391C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_A56D3E3CD534FC6C7F980868502CB21C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_80596B418DF237E2E61B0868502C391C" xlink:to="loc_us-gaap_CreditFacilityDomain_A56D3E3CD534FC6C7F980868502CB21C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DomesticLineOfCreditMember" xlink:label="loc_us-gaap_DomesticLineOfCreditMember_3509A2F3AA87857B57730868502CBA5A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_A56D3E3CD534FC6C7F980868502CB21C" xlink:to="loc_us-gaap_DomesticLineOfCreditMember_3509A2F3AA87857B57730868502CBA5A" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_IndustrialDevelopmentRevenueBondsMember" xlink:label="loc_powl_IndustrialDevelopmentRevenueBondsMember_D081672E8EC11D49C23A0868502C989C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_A56D3E3CD534FC6C7F980868502CB21C" xlink:to="loc_powl_IndustrialDevelopmentRevenueBondsMember_D081672E8EC11D49C23A0868502C989C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableRateAxis" xlink:label="loc_us-gaap_VariableRateAxis_C55C64371BF8E69774640868502CD935" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_1C28C925DBE022B91B0D0868502CB674" xlink:to="loc_us-gaap_VariableRateAxis_C55C64371BF8E69774640868502CD935" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableRateDomain" xlink:label="loc_us-gaap_VariableRateDomain_3B96F7A8A84EB0AC74570868502C3F3C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateAxis_C55C64371BF8E69774640868502CD935" xlink:to="loc_us-gaap_VariableRateDomain_3B96F7A8A84EB0AC74570868502C3F3C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FederalFundsEffectiveSwapRateMember" xlink:label="loc_us-gaap_FederalFundsEffectiveSwapRateMember_D04A880D585CA002E91E0868502CF755" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_3B96F7A8A84EB0AC74570868502C3F3C" xlink:to="loc_us-gaap_FederalFundsEffectiveSwapRateMember_D04A880D585CA002E91E0868502CF755" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EurodollarMember" xlink:label="loc_us-gaap_EurodollarMember_F812E0365879D1593F480868502C20D5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_3B96F7A8A84EB0AC74570868502C3F3C" xlink:to="loc_us-gaap_EurodollarMember_F812E0365879D1593F480868502C20D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_56BBC67CE0A3F611F6410868502CAB99" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_1C28C925DBE022B91B0D0868502CB674" xlink:to="loc_srt_RangeAxis_56BBC67CE0A3F611F6410868502CAB99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_7CDCCC775784DA8BF1210868502C8632" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_56BBC67CE0A3F611F6410868502CAB99" xlink:to="loc_srt_RangeMember_7CDCCC775784DA8BF1210868502C8632" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_7B54DD09D51C437417220868502C161A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_7CDCCC775784DA8BF1210868502C8632" xlink:to="loc_srt_MaximumMember_7B54DD09D51C437417220868502C161A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_1C28C925DBE022B91B0D0868502CB674" xlink:to="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_B143E52B63D3DF378C4A0868502C5433" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_B143E52B63D3DF378C4A0868502C5433" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GuaranteeObligationsCurrentCarryingValue" xlink:label="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_8AB3A332FEEFDFA1A44C0868502C8F61" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_8AB3A332FEEFDFA1A44C0868502C8F61" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCredit" xlink:label="loc_us-gaap_LineOfCredit_47DA035C1D3F75EE3F980868502CFDB9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_us-gaap_LineOfCredit_47DA035C1D3F75EE3F980868502CFDB9" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_RatioOfIndebtednessToConsolidatedEarningsBeforeInterestTaxesDepreciationAndAmortization" xlink:label="loc_powl_RatioOfIndebtednessToConsolidatedEarningsBeforeInterestTaxesDepreciationAndAmortization_65C26B135E35D02D635308D1F1F700D6" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_powl_RatioOfIndebtednessToConsolidatedEarningsBeforeInterestTaxesDepreciationAndAmortization_65C26B135E35D02D635308D1F1F700D6" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_RatioOfConsolidatedEarningsBeforeInterestTaxesDepreciationAndAmortizationLessIncomeTaxesCapitalExpendituresPrincipalDebtPaymentsAndInterestCharges" xlink:label="loc_powl_RatioOfConsolidatedEarningsBeforeInterestTaxesDepreciationAndAmortizationLessIncomeTaxesCapitalExpendituresPrincipalDebtPaymentsAndInterestCharges_B33801BB0C55969CB81D08DE6F060301" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_powl_RatioOfConsolidatedEarningsBeforeInterestTaxesDepreciationAndAmortizationLessIncomeTaxesCapitalExpendituresPrincipalDebtPaymentsAndInterestCharges_B33801BB0C55969CB81D08DE6F060301" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_LineOfCreditFacilityCovenantTermsCashCollateralPercentOfDebtOutstanding" xlink:label="loc_powl_LineOfCreditFacilityCovenantTermsCashCollateralPercentOfDebtOutstanding_E46C0FD17F14EC6E975A0868502CDC34" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_powl_LineOfCreditFacilityCovenantTermsCashCollateralPercentOfDebtOutstanding_E46C0FD17F14EC6E975A0868502CDC34" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_LineOfCreditFacilityCollateralAmount" xlink:label="loc_powl_LineOfCreditFacilityCollateralAmount_9F12FF04DDFB61B1596F0868502C02C0" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_powl_LineOfCreditFacilityCollateralAmount_9F12FF04DDFB61B1596F0868502C02C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_87E2406C6336A3128A8E0868502CA6C1" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_87E2406C6336A3128A8E0868502CA6C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_C56C6654BA4D5CDD5D060868502C65FD" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_C56C6654BA4D5CDD5D060868502C65FD" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_PercentageOfDomesticCapitalStockPledgedAsCollateralForCreditFacility" xlink:label="loc_powl_PercentageOfDomesticCapitalStockPledgedAsCollateralForCreditFacility_273DDFC462B600A363F50868502C8FAC" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_powl_PercentageOfDomesticCapitalStockPledgedAsCollateralForCreditFacility_273DDFC462B600A363F50868502C8FAC" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_PercentageOfNonDomesticCapitalStockPledgedAsCollateralForCreditFacility" xlink:label="loc_powl_PercentageOfNonDomesticCapitalStockPledgedAsCollateralForCreditFacility_DB4373E62499A1FFA6AE0868503CA1C6" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_powl_PercentageOfNonDomesticCapitalStockPledgedAsCollateralForCreditFacility_DB4373E62499A1FFA6AE0868503CA1C6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_BA9D347C2D00E97CCC4D0868503C7C48" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_BA9D347C2D00E97CCC4D0868503C7C48" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentAnnualPrincipalPayment" xlink:label="loc_us-gaap_DebtInstrumentAnnualPrincipalPayment_083747AAA58C670826990868503CB630" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_us-gaap_DebtInstrumentAnnualPrincipalPayment_083747AAA58C670826990868503CB630" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_0A42A17910469AAD849D0868503C97C8" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_4D5DFB2F425D3F19567A0868502C0570" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_0A42A17910469AAD849D0868503C97C8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/LongTermDebtScheduleOfMaturitiesOfLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_697388ED8D44BFF6BA1B0868503C3F78" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtByMaturityAbstract" xlink:label="loc_us-gaap_LongTermDebtByMaturityAbstract_9AE51006B7A749566AFF0868503C388E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_697388ED8D44BFF6BA1B0868503C3F78" xlink:to="loc_us-gaap_LongTermDebtByMaturityAbstract_9AE51006B7A749566AFF0868503C388E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_6AFA7B4FB750E404B74C0868503C4F06" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtByMaturityAbstract_9AE51006B7A749566AFF0868503C388E" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_6AFA7B4FB750E404B74C0868503C4F06" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_B7CEB794451C20F006120868503C8B5C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtByMaturityAbstract_9AE51006B7A749566AFF0868503C388E" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_B7CEB794451C20F006120868503C8B5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_6E30F011C1E91D5A29010868503C208F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtByMaturityAbstract_9AE51006B7A749566AFF0868503C388E" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_6E30F011C1E91D5A29010868503C208F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_A6CFCBF5D6A9E456A5840868503CAD8D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtByMaturityAbstract_9AE51006B7A749566AFF0868503C388E" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_A6CFCBF5D6A9E456A5840868503CAD8D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_3783BE42F67A4CB926FB0868503C2931" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtByMaturityAbstract_9AE51006B7A749566AFF0868503C388E" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_3783BE42F67A4CB926FB0868503C2931" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_26B0DE3EE42679F1984C0868503C9929" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtByMaturityAbstract_9AE51006B7A749566AFF0868503C388E" xlink:to="loc_us-gaap_LongTermDebt_26B0DE3EE42679F1984C0868503C9929" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/LongTermDebtTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_338778C636F0893673BF8371B037AC67" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:label="loc_us-gaap_ScheduleOfDebtInstrumentsTextBlock_7DA0954E713066F3004F8371B0371C25" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_338778C636F0893673BF8371B037AC67" xlink:to="loc_us-gaap_ScheduleOfDebtInstrumentsTextBlock_7DA0954E713066F3004F8371B0371C25" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_4171FD473456335CB97B8371B037308F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_338778C636F0893673BF8371B037AC67" xlink:to="loc_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_4171FD473456335CB97B8371B037308F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/QuarterlyInformation" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_153E7A508F703C5DC60F8371B1029A62" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_QuarterlyFinancialInformationTextBlock" xlink:label="loc_us-gaap_QuarterlyFinancialInformationTextBlock_296D53E47C3E957BD8988371B10286BB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_153E7A508F703C5DC60F8371B1029A62" xlink:to="loc_us-gaap_QuarterlyFinancialInformationTextBlock_296D53E47C3E957BD8988371B10286BB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/QuarterlyInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_E3437E5D2FAA85C8C9378371B2D43B77" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_1106E71ED4DFC3B440148371B2D496CD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_E3437E5D2FAA85C8C9378371B2D43B77" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_1106E71ED4DFC3B440148371B2D496CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_2600388FCFADA860BA2D8371B2D4BC9F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_E3437E5D2FAA85C8C9378371B2D43B77" xlink:to="loc_us-gaap_GrossProfit_2600388FCFADA860BA2D8371B2D4BC9F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_6F84B20291DA2E01EB098371B2D43ABC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_E3437E5D2FAA85C8C9378371B2D43B77" xlink:to="loc_us-gaap_NetIncomeLoss_6F84B20291DA2E01EB098371B2D43ABC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_AA40BB1E2DF65084AFC88371B2D4F26C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_E3437E5D2FAA85C8C9378371B2D43B77" xlink:to="loc_us-gaap_EarningsPerShareAbstract_AA40BB1E2DF65084AFC88371B2D4F26C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_F76465D9411459D9A6538371B2D42F37" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_AA40BB1E2DF65084AFC88371B2D4F26C" xlink:to="loc_us-gaap_EarningsPerShareBasic_F76465D9411459D9A6538371B2D42F37" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_A000D32A4EC064F8F1008371B2D44AF4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_AA40BB1E2DF65084AFC88371B2D4F26C" xlink:to="loc_us-gaap_EarningsPerShareDiluted_A000D32A4EC064F8F1008371B2D44AF4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/QuarterlyInformationTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_D5349AF23BE634BD12468371B16FF0A1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_A56B858557E5D1F097898371B16F2C11" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_D5349AF23BE634BD12468371B16FF0A1" xlink:to="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_A56B858557E5D1F097898371B16F2C11" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/RestructuringAndSeparationExpenses" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_62052D3C0A340CCD42538371B226F8B0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_B476AB2B8CDBB9A118598371B2263F47" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_62052D3C0A340CCD42538371B226F8B0" xlink:to="loc_us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_B476AB2B8CDBB9A118598371B2263F47" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/RestructuringAndSeparationExpensesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_D7BD270AB28DACF51EBC0E313B8DE2F2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_6E30A6E8C289B632BAF40E313B8D6DB1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_D7BD270AB28DACF51EBC0E313B8DE2F2" xlink:to="loc_us-gaap_RestructuringCharges_6E30A6E8C289B632BAF40E313B8D6DB1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SeveranceCosts1" xlink:label="loc_us-gaap_SeveranceCosts1_3576EEC470B163D2618C0E313B8D0576" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_D7BD270AB28DACF51EBC0E313B8DE2F2" xlink:to="loc_us-gaap_SeveranceCosts1_3576EEC470B163D2618C0E313B8D0576" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessExitCosts1" xlink:label="loc_us-gaap_BusinessExitCosts1_5926303A28B195CCE7BF0E313B8DB9C0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_D7BD270AB28DACF51EBC0E313B8DE2F2" xlink:to="loc_us-gaap_BusinessExitCosts1_5926303A28B195CCE7BF0E313B8DB9C0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/StockBasedCompensation" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_11BD525810696578103A8371B33247BA" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_67EFE91757649DEC593B8371B33201AC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_11BD525810696578103A8371B33247BA" xlink:to="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_67EFE91757649DEC593B8371B33201AC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/StockBasedCompensationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_93F2340D700EA73CDA360E344AA22B66" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9F4D13468B47DEA4BD7F0E344AA382A2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_93F2340D700EA73CDA360E344AA22B66" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9F4D13468B47DEA4BD7F0E344AA382A2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_EA4FBB637EA501E875DF0E344AA3A746" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9F4D13468B47DEA4BD7F0E344AA382A2" xlink:to="loc_us-gaap_AwardTypeAxis_EA4FBB637EA501E875DF0E344AA3A746" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_00942C784985E5F20F3D0E344AA361CC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_EA4FBB637EA501E875DF0E344AA3A746" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_00942C784985E5F20F3D0E344AA361CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_2782553076DC2D7B013C0E344AA38196" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_00942C784985E5F20F3D0E344AA361CC" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_2782553076DC2D7B013C0E344AA38196" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_92E3E84B31ADE78F0D840E344AA4E404" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_00942C784985E5F20F3D0E344AA361CC" xlink:to="loc_us-gaap_RestrictedStockMember_92E3E84B31ADE78F0D840E344AA4E404" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_DAD84E240B47D4E154210E344AA4CAE1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9F4D13468B47DEA4BD7F0E344AA382A2" xlink:to="loc_us-gaap_PlanNameAxis_DAD84E240B47D4E154210E344AA4CAE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_6973B73609E98C710A260E344AA4197E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_DAD84E240B47D4E154210E344AA4CAE1" xlink:to="loc_us-gaap_PlanNameDomain_6973B73609E98C710A260E344AA4197E" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_TwoThousandFourteenEquityIncentivePlanMember" xlink:label="loc_powl_TwoThousandFourteenEquityIncentivePlanMember_AE86B1F057F671DC572C0E344AA461CE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_6973B73609E98C710A260E344AA4197E" xlink:to="loc_powl_TwoThousandFourteenEquityIncentivePlanMember_AE86B1F057F671DC572C0E344AA461CE" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_NonEmployeeDirectorEquityIncentivePlanMember" xlink:label="loc_powl_NonEmployeeDirectorEquityIncentivePlanMember_E728A173DF98BECDFD4A0E344AA5C34F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_6973B73609E98C710A260E344AA4197E" xlink:to="loc_powl_NonEmployeeDirectorEquityIncentivePlanMember_E728A173DF98BECDFD4A0E344AA5C34F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_4DA1D234664E8C9789D70E344AA5F386" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9F4D13468B47DEA4BD7F0E344AA382A2" xlink:to="loc_us-gaap_StatementClassOfStockAxis_4DA1D234664E8C9789D70E344AA5F386" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_904C35FB94A51FD8C10D0E344AA5B934" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_4DA1D234664E8C9789D70E344AA5F386" xlink:to="loc_us-gaap_ClassOfStockDomain_904C35FB94A51FD8C10D0E344AA5B934" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_TimeBasedRestrictedStockUnitMember" xlink:label="loc_powl_TimeBasedRestrictedStockUnitMember_8E374D51E4685A671D490E344AA5B044" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_904C35FB94A51FD8C10D0E344AA5B934" xlink:to="loc_powl_TimeBasedRestrictedStockUnitMember_8E374D51E4685A671D490E344AA5B044" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_PerformanceBasedRestrictedStockUnitMember" xlink:label="loc_powl_PerformanceBasedRestrictedStockUnitMember_CBF50DCE114E26863A450E344AA658AF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_904C35FB94A51FD8C10D0E344AA5B934" xlink:to="loc_powl_PerformanceBasedRestrictedStockUnitMember_CBF50DCE114E26863A450E344AA658AF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VestingAxis" xlink:label="loc_us-gaap_VestingAxis_499DBEFB60E628416BA30E344AA6746F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9F4D13468B47DEA4BD7F0E344AA382A2" xlink:to="loc_us-gaap_VestingAxis_499DBEFB60E628416BA30E344AA6746F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VestingDomain" xlink:label="loc_us-gaap_VestingDomain_9C453379B9A79641F7630E344AA6A363" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingAxis_499DBEFB60E628416BA30E344AA6746F" xlink:to="loc_us-gaap_VestingDomain_9C453379B9A79641F7630E344AA6A363" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_4BC702D8AAB362CD816F0E344AA69E48" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingDomain_9C453379B9A79641F7630E344AA6A363" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_4BC702D8AAB362CD816F0E344AA69E48" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_26010FFD505E22D031C80E344AA706A2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingDomain_9C453379B9A79641F7630E344AA6A363" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_26010FFD505E22D031C80E344AA706A2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9F4D13468B47DEA4BD7F0E344AA382A2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_894C329BD82D48480DAE0E344AA7BC21" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_894C329BD82D48480DAE0E344AA7BC21" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfActualAmountOfUnitsEarned" xlink:label="loc_powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfActualAmountOfUnitsEarned_5ACF35BD9A72810458740E344AA7756F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfActualAmountOfUnitsEarned_5ACF35BD9A72810458740E344AA7756F" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetRSUGrantedRange" xlink:label="loc_powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetRSUGrantedRange_0EEA744250C447EE059A0E344AA7A2BC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetRSUGrantedRange_0EEA744250C447EE059A0E344AA7A2BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_736B96239A59C067E1C90E344AA8C584" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_736B96239A59C067E1C90E344AA8C584" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_D4123CCFE26CD759A5810E344AA86FE0" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_D4123CCFE26CD759A5810E344AA86FE0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_1FD78E2BC31E72F31FA20E344AA82A29" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_1FD78E2BC31E72F31FA20E344AA82A29" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee_84D02E9B6AC17F514B510E344AA831E7" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee_84D02E9B6AC17F514B510E344AA831E7" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantOtherThanOptionsAndSARs" xlink:label="loc_powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantOtherThanOptionsAndSARs_FA2940EC02083F8093590E344AA80EF6" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantOtherThanOptionsAndSARs_FA2940EC02083F8093590E344AA80EF6" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualSharesIssuable" xlink:label="loc_powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualSharesIssuable_CB7FB05CF3CD1B7E5C1B0E344AA9E8D6" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_powl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualSharesIssuable_CB7FB05CF3CD1B7E5C1B0E344AA9E8D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_817508F43AA101A5DB380E344AA9B514" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_817508F43AA101A5DB380E344AA9B514" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_D22577E65DE791A244CA0E344AA9D31B" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_D22577E65DE791A244CA0E344AA9D31B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharesIssuedPricePerShare" xlink:label="loc_us-gaap_SharesIssuedPricePerShare_FFAB130E7A38009815620E344AA92B58" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_SharesIssuedPricePerShare_FFAB130E7A38009815620E344AA92B58" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_3627529DEA6FB7A238410E344AA95473" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_3627529DEA6FB7A238410E344AA95473" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_2331CF0EE98BCF8CFD650E344AA92A24" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_2331CF0EE98BCF8CFD650E344AA92A24" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_210D070997806172C2590E344AA99F28" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8A7DF87D0DA0FB58B9950E344AA74337" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_210D070997806172C2590E344AA99F28" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/StockBasedCompensationScheduleOfRestrictedStockUnitsActivityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0418B4FBAA0F88BEAE4E2C74CA86CA11" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6A9614A0542E43E4934C2C74CA861166" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0418B4FBAA0F88BEAE4E2C74CA86CA11" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6A9614A0542E43E4934C2C74CA861166" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_374F86AC9D5A7F957D682C74CA86C893" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6A9614A0542E43E4934C2C74CA861166" xlink:to="loc_us-gaap_AwardTypeAxis_374F86AC9D5A7F957D682C74CA86C893" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0EA9D3F490C5BD8B8FBD2C74CA86B4A5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_374F86AC9D5A7F957D682C74CA86C893" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0EA9D3F490C5BD8B8FBD2C74CA86B4A5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_D5D72E1D360090472D632C74CA860CC7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0EA9D3F490C5BD8B8FBD2C74CA86B4A5" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_D5D72E1D360090472D632C74CA860CC7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_08F761D779EBEA1A5C052C74CA8660E1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6A9614A0542E43E4934C2C74CA861166" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_08F761D779EBEA1A5C052C74CA8660E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_87A96C80033A27F8E79B2C74CA86A1A9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_08F761D779EBEA1A5C052C74CA8660E1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_87A96C80033A27F8E79B2C74CA86A1A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_C5EB849A014BCA6EFD2E2C74CA866778" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_87A96C80033A27F8E79B2C74CA86A1A9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_C5EB849A014BCA6EFD2E2C74CA866778" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_C023A891E711B936C1352C74CA89F815" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_87A96C80033A27F8E79B2C74CA86A1A9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_C023A891E711B936C1352C74CA89F815" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_10525921267EB424244E2C74CA89EE3B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_87A96C80033A27F8E79B2C74CA86A1A9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_10525921267EB424244E2C74CA89EE3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_32837B8CF10906FE58C32C74CA89BD86" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_87A96C80033A27F8E79B2C74CA86A1A9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_32837B8CF10906FE58C32C74CA89BD86" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_0FC9B060F95C76BA94C52C74CA890F10" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_87A96C80033A27F8E79B2C74CA86A1A9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_0FC9B060F95C76BA94C52C74CA890F10" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_C603F036C2FE235357672C74CA89BEAA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_08F761D779EBEA1A5C052C74CA8660E1" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_C603F036C2FE235357672C74CA89BEAA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_DE8DE039D1308CB552892C74CA89DB2B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_C603F036C2FE235357672C74CA89BEAA" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_DE8DE039D1308CB552892C74CA89DB2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_52E2F14E479B3F8FD02D2C74CA895C29" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_C603F036C2FE235357672C74CA89BEAA" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_52E2F14E479B3F8FD02D2C74CA895C29" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_2ABD330D8E4C3F976DF72C74CA89626D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_C603F036C2FE235357672C74CA89BEAA" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_2ABD330D8E4C3F976DF72C74CA89626D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_46D814C63FB3223CC6082C74CA89E1CE" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_C603F036C2FE235357672C74CA89BEAA" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_46D814C63FB3223CC6082C74CA89E1CE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_2B2A231CCBDFC85DE1C22C74CA898C2F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_C603F036C2FE235357672C74CA89BEAA" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_2B2A231CCBDFC85DE1C22C74CA898C2F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/StockBasedCompensationTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_DA8D6BCA481C26D5F8458371B19EB476" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_004D496D5A52A846F4668371B19E538D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_DA8D6BCA481C26D5F8458371B19EB476" xlink:to="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_004D496D5A52A846F4668371B19E538D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/SubsequentEvents" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_A86C2B880CF17D8163E18371B2382D07" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaap_SubsequentEventsTextBlock_5AA8436EBDC6904355378371B23870D2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_A86C2B880CF17D8163E18371B2382D07" xlink:to="loc_us-gaap_SubsequentEventsTextBlock_5AA8436EBDC6904355378371B23870D2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/SubsequentEventsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_A87232D1FFDC3A5FF01A8371B22926AB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable_32A6CDD8249C5C88674A8371B229F991" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_A87232D1FFDC3A5FF01A8371B22926AB" xlink:to="loc_us-gaap_SubsequentEventTable_32A6CDD8249C5C88674A8371B229F991" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_B5FB9CFF161CD2A974098371B229E613" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_32A6CDD8249C5C88674A8371B229F991" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_B5FB9CFF161CD2A974098371B229E613" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_0BD3091A601CCFC01A748371B22902FD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_B5FB9CFF161CD2A974098371B229E613" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_0BD3091A601CCFC01A748371B22902FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_59F706546AEE0F67128D8371B22974DE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_0BD3091A601CCFC01A748371B22902FD" xlink:to="loc_us-gaap_SubsequentEventMember_59F706546AEE0F67128D8371B22974DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaap_SubsequentEventLineItems_A09E81FE585F06FC9C2D8371B2294315" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_32A6CDD8249C5C88674A8371B229F991" xlink:to="loc_us-gaap_SubsequentEventLineItems_A09E81FE585F06FC9C2D8371B2294315" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_541232F7980B05169E258371B229B5D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_A09E81FE585F06FC9C2D8371B2294315" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_541232F7980B05169E258371B229B5D4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_31AEF204ED3C7530B66E8371B0950B69" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_4387C3C1B5229D7063C48371B095F83B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_31AEF204ED3C7530B66E8371B0950B69" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_4387C3C1B5229D7063C48371B095F83B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_6494DD3211F2318E1071095D8ED6108E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable" xlink:label="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_347673C147ABDEC950AD095D8ED698E9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_6494DD3211F2318E1071095D8ED6108E" xlink:to="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_347673C147ABDEC950AD095D8ED698E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_863DE84D946134AAD80409604DAA506C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_347673C147ABDEC950AD095D8ED698E9" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_863DE84D946134AAD80409604DAA506C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_3E47DAF14DA9C5CCCDF709604EF9A75C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_863DE84D946134AAD80409604DAA506C" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_3E47DAF14DA9C5CCCDF709604EF9A75C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableMember" xlink:label="loc_us-gaap_AccountsReceivableMember_1432264FE2A456ED561609615CF2A7CA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_3E47DAF14DA9C5CCCDF709604EF9A75C" xlink:to="loc_us-gaap_AccountsReceivableMember_1432264FE2A456ED561609615CF2A7CA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsMember" xlink:label="loc_us-gaap_OtherAssetsMember_A439F60A7DDB516B92E00960A8A322B6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_3E47DAF14DA9C5CCCDF709604EF9A75C" xlink:to="loc_us-gaap_OtherAssetsMember_A439F60A7DDB516B92E00960A8A322B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_F71AD8356B8A4B5A4B1A095D8ED7583C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_347673C147ABDEC950AD095D8ED698E9" xlink:to="loc_srt_RangeAxis_F71AD8356B8A4B5A4B1A095D8ED7583C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_489C853A13129867E224095D8ED7B533" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_F71AD8356B8A4B5A4B1A095D8ED7583C" xlink:to="loc_srt_RangeMember_489C853A13129867E224095D8ED7B533" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_AD1AFD0639379513B414095D8ED7C8F5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_489C853A13129867E224095D8ED7B533" xlink:to="loc_srt_MinimumMember_AD1AFD0639379513B414095D8ED7C8F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems" xlink:label="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_2FBB4D3C9C3CC4E3E787095D8ED890E3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_347673C147ABDEC950AD095D8ED698E9" xlink:to="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_2FBB4D3C9C3CC4E3E787095D8ED890E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractReceivableRetainage" xlink:label="loc_us-gaap_ContractReceivableRetainage_6C12F868914FDD632645095D8ED814AD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_2FBB4D3C9C3CC4E3E787095D8ED890E3" xlink:to="loc_us-gaap_ContractReceivableRetainage_6C12F868914FDD632645095D8ED814AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractReceivableRetainageDueOneYearOrLess" xlink:label="loc_us-gaap_ContractReceivableRetainageDueOneYearOrLess_1AA769F81F860984FE73095FD4D94CF7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_2FBB4D3C9C3CC4E3E787095D8ED890E3" xlink:to="loc_us-gaap_ContractReceivableRetainageDueOneYearOrLess_1AA769F81F860984FE73095FD4D94CF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractReceivableRetainageDueOneToTwoYears" xlink:label="loc_us-gaap_ContractReceivableRetainageDueOneToTwoYears_34771D16209EB32DF2BC095F479A0379" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_2FBB4D3C9C3CC4E3E787095D8ED890E3" xlink:to="loc_us-gaap_ContractReceivableRetainageDueOneToTwoYears_34771D16209EB32DF2BC095F479A0379" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_LongtermContractPeriod" xlink:label="loc_powl_LongtermContractPeriod_4EA0C169337766532FC1095D8ED82A69" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_2FBB4D3C9C3CC4E3E787095D8ED890E3" xlink:to="loc_powl_LongtermContractPeriod_4EA0C169337766532FC1095D8ED82A69" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_WarrantyPartsAndServicesDateOfShipmentPeriod" xlink:label="loc_powl_WarrantyPartsAndServicesDateOfShipmentPeriod_40742C3C9E1146192E46095D8ED8AAD4" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_2FBB4D3C9C3CC4E3E787095D8ED890E3" xlink:to="loc_powl_WarrantyPartsAndServicesDateOfShipmentPeriod_40742C3C9E1146192E46095D8ED8AAD4" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_WarrantyPartsAndServicesDateOfEnergizationPeriod" xlink:label="loc_powl_WarrantyPartsAndServicesDateOfEnergizationPeriod_379A636D507875DFDEE8095D8ED840DB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_2FBB4D3C9C3CC4E3E787095D8ED890E3" xlink:to="loc_powl_WarrantyPartsAndServicesDateOfEnergizationPeriod_379A636D507875DFDEE8095D8ED840DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_EF5C893A042A281D2316095D8ED99D91" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_2FBB4D3C9C3CC4E3E787095D8ED890E3" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_EF5C893A042A281D2316095D8ED99D91" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_740717EB7FB212A100A99889E41C75D6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_ConsolidationPolicyTextBlock_740717EB7FB212A100A99889E41C75D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates_FE5FDCA1DD50C821F0209889E41C3B18" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_UseOfEstimates_FE5FDCA1DD50C821F0209889E41C3B18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:label="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_1605686736C0E3F4B8289889E41CF2D1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_1605686736C0E3F4B8289889E41CF2D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_507249E9A7D00CCA978F9889E41CE7C3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_507249E9A7D00CCA978F9889E41CE7C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TradeAndOtherAccountsReceivablePolicy" xlink:label="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_E3618F4457B241D9DEF59889E41CB7F9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_E3618F4457B241D9DEF59889E41CB7F9" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsPolicyPolicyTextBlock" xlink:label="loc_powl_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsPolicyPolicyTextBlock_EFA79F118CD852593DB89889E41CF276" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_powl_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsPolicyPolicyTextBlock_EFA79F118CD852593DB89889E41CF276" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:label="loc_us-gaap_InventoryPolicyTextBlock_E891A9433E5C125C830A9889E41C140C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_InventoryPolicyTextBlock_E891A9433E5C125C830A9889E41C140C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_7A90A96863E93436AF429889E41C70FB" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_7A90A96863E93436AF429889E41C70FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_6058EA2AD4EDC31452F09889E41CDAC9" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_IncomeTaxPolicyTextBlock_6058EA2AD4EDC31452F09889E41CDAC9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueRecognitionAccountingPolicyGrossAndNetRevenueDisclosure" xlink:label="loc_us-gaap_RevenueRecognitionAccountingPolicyGrossAndNetRevenueDisclosure_EE595F6C0693859E56FB9889E41CED2E" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_RevenueRecognitionAccountingPolicyGrossAndNetRevenueDisclosure_EE595F6C0693859E56FB9889E41CED2E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StandardProductWarrantyPolicy" xlink:label="loc_us-gaap_StandardProductWarrantyPolicy_5C68225E13D71DBEACD59889E41C2F40" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_StandardProductWarrantyPolicy_5C68225E13D71DBEACD59889E41C2F40" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpensePolicy_7C7D946C9637275675BF9889E41C72DF" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpensePolicy_7C7D946C9637275675BF9889E41C72DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:label="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_3019CA0CE68946341A729889E41C3492" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_3019CA0CE68946341A729889E41C3492" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_5E44161CA363761F72689889E41C2670" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_5E44161CA363761F72689889E41C2670" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_BAA965FEB7E3F837A8F39889E41CD12E" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_CEEF30E1BB5B4305DC8A9889E41C2C9C" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_BAA965FEB7E3F837A8F39889E41CD12E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/SummaryOfSignificantAccountingPoliciesSupplementalDisclosuresOfCashFlowInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_4CBE34969A787A1035C58371B0F20047" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_00A81F5031205C0AFB698371B0F29EBB" xlink:type="locator" />
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4CBE34969A787A1035C58371B0F20047" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_00A81F5031205C0AFB698371B0F29EBB" xlink:type="arc" />
    <link:loc xlink:href="powl-20180930.xsd#powl_InterestPaidNetOfInterestIncome" xlink:label="loc_powl_InterestPaidNetOfInterestIncome_F811C70C7B22DEF279688371B0F295AE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_00A81F5031205C0AFB698371B0F29EBB" xlink:to="loc_powl_InterestPaidNetOfInterestIncome_F811C70C7B22DEF279688371B0F295AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxesPaidNet" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_1FA9C3C9AD6735E871D18371B0F2C8EB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_00A81F5031205C0AFB698371B0F29EBB" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_1FA9C3C9AD6735E871D18371B0F2C8EB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_9A6B98C7BC88F27537208371B0F21407" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4CBE34969A787A1035C58371B0F20047" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_9A6B98C7BC88F27537208371B0F21407" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.powellind.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_F76260288AEF5878AA428371B2B54575" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_A9CF5E4E07FDEB11A27F8371B2B50B8E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_F76260288AEF5878AA428371B2B54575" xlink:to="loc_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_A9CF5E4E07FDEB11A27F8371B2B50B8E" xlink:type="arc" />
  </link:presentationLink>
</link:linkbase>
