SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* BRAILER DANIEL A (Last) (First) (Middle) 225 WEST STATION SQUARE DRIVE, SUITE 700 (Street) PITTSBURGH PA 15219 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol WESCO INTERNATIONAL INC [ WCC ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) TREASURER/ CORPORATE SECRETARY
	3. Date of Earliest Transaction (Month/Day/Year) 03/19/2004
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
WESCO International Common Stock								9,175	I	Portion of shares owned by spouse(1)
WESCO International Common Stock	03/17/2004	03/17/2004	S		1,500	D	$15.25	7,675	I	Portion of shares owned by spouse(1)
WESCO International Common Stock	03/19/2004	03/19/2004	S		1,277	D	$16	6,398	I	Portion of shares owned by spouse(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option for WESCO International Common Stock	$18							(3)	05/11/2009	WESCO International Common Stock	9,175		9,175	D
Option for WESCO International Common Stock	$9.875							(4)	05/11/2010	WESCO International Common Stock	7,500		16,675	D
Option for WESCO International Common Stock	$4.5							(4)	12/21/2011	WESCO International Common Stock	10,000		26,675	D
Option for WESCO International Common Stock	$7.08							(4)	05/01/2012	WESCO International Common Stock	10,000		36,675	D
Option for WESCO International Common Stock	$5.9	08/22/2003		A		22,500		(5)	08/22/2013	WESCO International Common Stock	22,500	$5.9	59,175	D

Explanation of Responses:

1. Of the 9,175 shares in total, 2,777 are owned by Dorothy Brailer (spouse).

2. The balance of these shares, after this transaction, are directly owned by Daniel Brailer.

3. Half of the options granted vested over a four-year time period beginning with the grant date, with the remaining half being subject to accellerated vesting based on performance. Any options not yet vested become vested 90 days prior to the expiration date of the options.

4. Options are subject to performance vesting, with any unvested options becoming vested 90 days prior to the expiration date of such options.

5. Options vest at a rate of 1/3 per year on the anniversary date of the option grant over the next three years.

Remarks:

	/s/ Daniel A. Brailer	03/22/2004
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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