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  <xs:element id="wcc_AdjustedEBITDA" abstract="false" name="AdjustedEBITDA" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_SylvaniaLightingServicesCorpMember" abstract="true" name="SylvaniaLightingServicesCorpMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentAssets" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAssets" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_DefinedBenefitPlanBenefitsPaidFromCompanyAssets" abstract="false" name="DefinedBenefitPlanBenefitsPaidFromCompanyAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_DefinedContributionPensionPlanForEmployeesOfAnixterCanadaIncMember" abstract="true" name="DefinedContributionPensionPlanForEmployeesOfAnixterCanadaIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_InsuranceProductMember" abstract="true" name="InsuranceProductMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_DeferredTaxAssetsLeaseLiabilities" abstract="false" name="DeferredTaxAssetsLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_SupplierVolumeRebateIncomePercentage" abstract="false" name="SupplierVolumeRebateIncomePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wcc_DiscountPercentageOfParValue" abstract="false" name="DiscountPercentageOfParValue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_AllowanceForDoubtfulAccountsTableTextBlock" abstract="false" name="AllowanceForDoubtfulAccountsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wcc_PaymentToAcquireBusinessFairValueOfCashConsideration" abstract="false" name="PaymentToAcquireBusinessFairValueOfCashConsideration" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_MergerRelatedStockBasedCompensationExpense" abstract="false" name="MergerRelatedStockBasedCompensationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_SeniorNotesDue2021Member" abstract="true" name="SeniorNotesDue2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_CSSMember" abstract="true" name="CSSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_AnixterDeferredCompensationPlanMember" abstract="true" name="AnixterDeferredCompensationPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_AccountsReceivableSecuritizationFacilityAmendedMember" abstract="true" name="AccountsReceivableSecuritizationFacilityAmendedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_CommitmentFee" abstract="false" name="CommitmentFee" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wcc_OptionToExtendLesseesOperatingLeaseLeasePayments" abstract="false" name="OptionToExtendLesseesOperatingLeaseLeasePayments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredIncomeTaxes" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredIncomeTaxes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_A600SeniorNotesDue2025Member" abstract="true" name="A600SeniorNotesDue2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_OtherInternationalMember" abstract="true" name="OtherInternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOperatingLeaseAssets" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOperatingLeaseAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_AccountsReceivableEligibleForSecuritization" abstract="false" name="AccountsReceivableEligibleForSecuritization" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_GoodwillLineItemsLineItems" abstract="true" name="GoodwillLineItemsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wcc_WESCODefinedContributionMember" abstract="true" name="WESCODefinedContributionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_ScheduleOfEmployeeBenefitPlansTable" abstract="true" name="ScheduleOfEmployeeBenefitPlansTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="wcc_SeniorNotesDue2025Member" abstract="true" name="SeniorNotesDue2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_DefinedContributionDiscretionaryContributionPercentage" abstract="false" name="DefinedContributionDiscretionaryContributionPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wcc_OtherComprehensiveIncomeLossDefinedBenefitPlanForeignCurrencyTranslationGainLoss" abstract="false" name="OtherComprehensiveIncomeLossDefinedBenefitPlanForeignCurrencyTranslationGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossBeforeTax" abstract="false" name="OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_DefinedBenefitPlanNumberOfPlansWithAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssets" abstract="false" name="DefinedBenefitPlanNumberOfPlansWithAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssets" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wcc_AccountsReceivableSecuritizationFacilityMember" abstract="true" name="AccountsReceivableSecuritizationFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_NetIncomeMember" abstract="true" name="NetIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_AssetsAndLiabilitiesLesseeTableTextBlockTableTextBlock" abstract="false" name="AssetsAndLiabilitiesLesseeTableTextBlockTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wcc_UBSMember" abstract="true" name="UBSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_CanadianDollarSubFacilityCommitment" abstract="false" name="CanadianDollarSubFacilityCommitment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanTax" abstract="false" name="AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanTax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_OtherIncomeAndExpensePolicyTextBlock" abstract="false" name="OtherIncomeAndExpensePolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsReceivable" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsReceivable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNoncurrentLiabilitiesLongTermDebt" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNoncurrentLiabilitiesLongTermDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_DepositaryShareMember" abstract="true" name="DepositaryShareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_AnixterEmployeeSavingsPlanMember" abstract="true" name="AnixterEmployeeSavingsPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_WESCODistributionCanadaDefinedContributionPlanMember" abstract="true" name="WESCODistributionCanadaDefinedContributionPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_DisposalGroupIncludingDiscontinuedOperationSTAndLTOperatingLeaseLiabilities" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationSTAndLTOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_ScheduleOfEmployeeBenefitPlansLineItems" abstract="true" name="ScheduleOfEmployeeBenefitPlansLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wcc_EESMember" abstract="true" name="EESMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_PercentageOfPrincipalAmountOfSeniorNotesAcceleratedUnderDefault" abstract="false" name="PercentageOfPrincipalAmountOfSeniorNotesAcceleratedUnderDefault" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_BusinessCombinationRecongizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollAndBenefitCosts" abstract="false" name="BusinessCombinationRecongizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedPayrollAndBenefitCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_BusinessAcquisitionScheduleOfConsiderationTransferredTableTextBlock" abstract="false" name="BusinessAcquisitionScheduleOfConsiderationTransferredTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wcc_A7125SeniorNotesDue2025Member" abstract="true" name="A7125SeniorNotesDue2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_MergerRelatedAndIntegrationCosts" abstract="false" name="MergerRelatedAndIntegrationCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_USDefinedContributionPlanMergerMember" abstract="true" name="USDefinedContributionPlanMergerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_RahiSystemsMember" abstract="true" name="RahiSystemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_LineOfCreditFacilityOpportunityToIncreaseBorrowingCapacity" abstract="false" name="LineOfCreditFacilityOpportunityToIncreaseBorrowingCapacity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOperatingLeaseLiabilities" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOperatingLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_StockholdersEquityParentheticalAbstract" abstract="true" name="StockholdersEquityParentheticalAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wcc_SeniorNotesTenderOfferConsiderationPer1000PrincipalAmount" abstract="false" name="SeniorNotesTenderOfferConsiderationPer1000PrincipalAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_SegmentReportingInformationOutOfPeriodAdjustment" abstract="false" name="SegmentReportingInformationOutOfPeriodAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_SeniorNotesDue2023Member" abstract="true" name="SeniorNotesDue2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_NumberOfCitiesInWhichAnEntityOperates" abstract="false" name="NumberOfCitiesInWhichAnEntityOperates" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wcc_AnixterInternationalMember" abstract="true" name="AnixterInternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_DefinedBenefitPlanNumberOfPlansWithProjectedBenefitObligationsInExcessOfFairValueOfPlanAssets" abstract="false" name="DefinedBenefitPlanNumberOfPlansWithProjectedBenefitObligationsInExcessOfFairValueOfPlanAssets" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wcc_AdjustedEBITDAMarginPercentage" abstract="false" name="AdjustedEBITDAMarginPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wcc_StockBasedCompensationExpenseEBITDA" abstract="false" name="StockBasedCompensationExpenseEBITDA" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_SeniorNotesConsentFeePer1000PrincipalAmount" abstract="false" name="SeniorNotesConsentFeePer1000PrincipalAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_DefinedBenefitPlanAssetsActualGainLoss" abstract="false" name="DefinedBenefitPlanAssetsActualGainLoss" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wcc_NumberOfLocations" abstract="false" name="NumberOfLocations" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wcc_WESCODeferredCompensationPlanMember" abstract="true" name="WESCODeferredCompensationPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_CostOfGoodsSoldMember" abstract="true" name="CostOfGoodsSoldMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_NumberOfEmployeesEmployedByTheEntity" abstract="false" name="NumberOfEmployeesEmployedByTheEntity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="wcc_ScheduleOfGoodwillWccTable" abstract="true" name="ScheduleOfGoodwillWccTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="wcc_RevenueMember" abstract="true" name="RevenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_DefinedContributionPlanEmployerMatchingContributionGreaterThan20YearsOfServicePercentOfEmployeesGrossPay" abstract="false" name="DefinedContributionPlanEmployerMatchingContributionGreaterThan20YearsOfServicePercentOfEmployeesGrossPay" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wcc_SeniorNotesdue2024Member" abstract="true" name="SeniorNotesdue2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_DisposalGroupIncludingDiscontinuedOperatingLeaseAssets" abstract="false" name="DisposalGroupIncludingDiscontinuedOperatingLeaseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_LesseeOperatingLeaseLeaseNotYetCommencedPayments" abstract="false" name="LesseeOperatingLeaseLeaseNotYetCommencedPayments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseAssets" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_DepreciableMember" abstract="true" name="DepreciableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherNoncurrentLiabilities" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherNoncurrentLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsNoncurrentAssets" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsNoncurrentAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_OutOfPeriodAdjustment" abstract="false" name="OutOfPeriodAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_A7250SeniorNotesDue2028Member" abstract="true" name="A7250SeniorNotesDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsLiabilities" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_DeferredIncomeTaxLiabilityMember" abstract="true" name="DeferredIncomeTaxLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingRollForward" abstract="true" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAndStockAppreciationRightsOutstandingRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="wcc_CanadianDefinedContributionPlanMergerMember" abstract="true" name="CanadianDefinedContributionPlanMergerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_MergerRelatedInventoryFairValueAdjustments" abstract="false" name="MergerRelatedInventoryFairValueAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
