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  <xs:element id="wcc_EBPParticipantContributionEligibleCompensationDollarAmount" abstract="false" name="EBPParticipantContributionEligibleCompensationDollarAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_EBPEmployerDiscretionaryContribution" abstract="false" name="EBPEmployerDiscretionaryContribution" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_EBPTrueUpContribution" abstract="false" name="EBPTrueUpContribution" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_EBPCatchUpContributionLimitAges60To63" abstract="false" name="EBPCatchUpContributionLimitAges60To63" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_EBPCatchUpContributionLimit" abstract="false" name="EBPCatchUpContributionLimit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_EBPEmployerContributionAnnualVestingPercentageAfterRequisiteServicePeriod" abstract="false" name="EBPEmployerContributionAnnualVestingPercentageAfterRequisiteServicePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="wcc_EBPMinimumFundBalanceForFormerEmployees" abstract="false" name="EBPMinimumFundBalanceForFormerEmployees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_EBPRequisiteServicePeriodHours" abstract="false" name="EBPRequisiteServicePeriodHours" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:timeItemType"/>
  <xs:element id="wcc_EBPInvestmentDisbursements" abstract="false" name="EBPInvestmentDisbursements" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_WescoStockFundMember" abstract="true" name="WescoStockFundMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="wcc_LegalSettlement" abstract="false" name="LegalSettlement" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_EBPStableValueFundTextBlock" abstract="false" name="EBPStableValueFundTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="wcc_EBPLoansToParticipants" abstract="false" name="EBPLoansToParticipants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="wcc_EBPRepaymentOfLoansToParticipants" abstract="false" name="EBPRepaymentOfLoansToParticipants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
