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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PJ6As/WFAO1Ngizj8sIR/Z7cIiuiqlgX1Xa4Ibdzk4l01ibujOVq58HJcGMSBM0w
 qfDCYdRHHkuJEf2Du+uL1w==

<SEC-DOCUMENT>0001209191-03-012417.txt : 20030718
<SEC-HEADER>0001209191-03-012417.hdr.sgml : 20030718
<ACCEPTANCE-DATETIME>20030718115121
ACCESSION NUMBER:		0001209191-03-012417
CONFORMED SUBMISSION TYPE:	3/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030625
FILED AS OF DATE:		20030718

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DUGANIER ALLAN A
		CENTRAL INDEX KEY:			0001246375

	FILING VALUES:
		FORM TYPE:		3/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14989
		FILM NUMBER:		03792555

	BUSINESS ADDRESS:	
		STREET 1:		WESCO DISTRIBUTION INC
		STREET 2:		225 W STATION SQUARE DR
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15219
		BUSINESS PHONE:		4124542287

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESCO INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000929008
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-ELECTRICAL APPARATUS & EQUIPMENT, WIRING SUPPLIES [5063]
		IRS NUMBER:				251723345
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		COMMERCE COURT 4 STATION SQUARE
		STREET 2:		STE 700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15219
		BUSINESS PHONE:		4124542200

	MAIL ADDRESS:	
		STREET 1:		COMMERCE COURT 4 STATION SQUARE
		STREET 2:		STE 700
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15219

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CDW HOLDING CORP
		DATE OF NAME CHANGE:	19971217
</SEC-HEADER>
<DOCUMENT>
<TYPE>3/A
<SEQUENCE>1
<FILENAME>doc3a.xml
<DESCRIPTION>FORM 3/A SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0101</schemaVersion>    <documentType>3/A</documentType><periodOfReport>2003-06-25</periodOfReport><dateOfOriginalSubmission>2003-06-25</dateOfOriginalSubmission><noSecuritiesOwned>0</noSecuritiesOwned><issuer><issuerCik>0000929008</issuerCik><issuerName>WESCO INTERNATIONAL INC</issuerName>        <issuerTradingSymbol>WCC</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001246375</rptOwnerCik><rptOwnerName>DUGANIER ALLAN A</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>  </rptOwnerStreet1><rptOwnerStreet2>  </rptOwnerStreet2><rptOwnerCity>  </rptOwnerCity><rptOwnerState>  </rptOwnerState><rptOwnerZipCode>  </rptOwnerZipCode></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>OPERATIONS CONTROLLER</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeSecurity
><securityTitle><value>WESCO Common Stock</value></securityTitle><transactionAmounts><transactionShares><value>18600</value></transactionShares></transactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeSecurity><footnotes></footnotes><ownerSignature><signatureName>ALLAN A. DUGANIER</signatureName><signatureDate>2003-07-18</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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