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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549



                                  SCHEDULE 13G

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                                 (RULE 13D-102)

                 INFORMATION TO BE INCLUDED IN STATEMENTS FILED
          PURSUANT TO RULE 13D-1(B), (C) AND (D) AND AMENDMENTS THERETO
                         FILED PURSUANT TO RULE 13D-2(B)

                                (AMENDMENT NO. )*

                               Wesco International
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                          Common Stock, $0.01 par value
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    95082P105
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                                 January 1, 2002
- --------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

Check the  appropriate box to designate the rule pursuant to which this Schedule
is filed:

     [_] 13d-1(b)

     [X] 13d-1(c)

     [ ] 13d-1(d)

     * The  remainder  of this cover  page  shall be filled out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter the disclosures  provided in a prior cover page.

     The  information  required in the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 ("Act") or otherwise  subject to the  liabilities of that section of
the Act but shall be subject to all other  provisions of the Act  (however,  see
the Notes).

POTENTIAL PERSONS WHO ARE TO RESPOND TO THE COLLECTION OF INFORMATION  CONTAINED
IN THIS FORM ARE NOT  REQUIRED TO RESPOND  UNLESS THE FORM  DISPLAYS A CURRENTLY
VALID OMB CONTROL NUMBER.


SEC 1745 (3-98)

                               Page 1 of 10 Pages

SCHEDULE 13G ISSUER: Wesco International CUSIP NO.: 95082P105 1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). J.P. Morgan Partners (BHCA), L.P. (formerly known as Chase Equity Associates, L.P.) 13-3371826 - -------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (See Instructions) (a) ------------------------------------------------------------------------- (b) ------------------------------------------------------------------------- - -------------------------------------------------------------------------------- 3. SEC Use Only - -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization Delaware - -------------------------------------------------------------------------------- Number of Shares 5. Sole Voting Power 4,653,131 Beneficially Owned ------------------------------------------------------- by Each Reporting 6. Shared Voting Power Person With: ------------------------------------------------------- 7. Sole Dispositive Power 4,653,131 ------------------------------------------------------- 8. Shared Dispositive Power - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 4,653,131 - ---------- --------------------------------------------------------------------- 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) - ---------- --------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) 11.6% - ---------- --------------------------------------------------------------------- 12. Type of Reporting Person (See Instructions) - ---------- --------------------------------------------------------------------- PN ................................................................................ ................................................................................ ................................................................................ ................................................................................ ................................................................................ ................................................................................ - -------------------------------------------------------------------------------- SEC 1745 (3-98) Page 2 of 10 Pages

SCHEDULE 13G ISSUER: Wesco International CUSIP NO.: 95082P105 PRELIMINARY NOTE: This Schedule 13G is being filed to reflect that due to changes in banking laws, the Reporting Person now has the present ability to convert the Issuer's non-voting securities previously owned by it into voting securities of the Issuer. Therefore, for SEC analysis, the Reporting Person may be deemed to be the beneficial owner of 4,653,131 shares of Common Stock. ITEM 1. (A) NAME OF ISSUER: --------------- Wesco International (B) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: ------------------------------------------------ Commerce Court Four Station Square Suite 700 ITEM 2. (A) NAME OF PERSON FILING: ---------------------- J.P. Morgan Partners (BHCA), L.P. Supplemental information relating to the ownership and control of the person filing this statement is included in Exhibit 2(a) attached hereto. (B) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE: ------------------------------------------------------------ 1221 Avenue of the Americas New York, New York 10020 (C) CITIZENSHIP: ------------ Delaware (D) TITLE OF CLASS OF SECURITIES (OF ISSUER): ----------------------------------------- Common Stock, par value $0.01 per share (E) CUSIP NUMBER: ------------- 95082P105 ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SS.SS. 240. 13D-1(B) OR 240. 13D-2(B) OR (C), CHECK WHETHER THE PERSON FILING IS A: Not applicable. ITEM 4. OWNERSHIP (A) AMOUNT BENEFICIALLY OWNED: -------------------------- 4,653,131 shares of Common Stock (B) PERCENT OF CLASS: ----------------- 11.6% (as of December 31, 2001). SEC 1745 (3-98) Page 3 of 10 Pages

SCHEDULE 13G ISSUER: Wesco International CUSIP NO.: 95082P105 (C) NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS: --------------------------------------------- (i) Sole power to vote or to direct the vote: 4,653,131 shares of Common Stock (ii) Shared power to vote or to direct the vote: Not applicable. (iii) Sole power to dispose or to direct the disposition of: 4,653,131 shares of Common (iv) Shared power to dispose or to direct the disposition of: Not applicable. ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS Not applicable. ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON Not applicable. ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY Not applicable. ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP Not applicable. ITEM 9. NOTICE OF DISSOLUTION OF GROUP Not applicable. ITEM 10. CERTIFICATION (a) Not applicable. (b) By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. SEC 1745 (3-98) Page 4 of 10 Pages

SCHEDULE 13G ISSUER: Wesco International CUSIP NO.: 95082P105 SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: February 11, 2002 J.P. MORGAN PARTNERS (BHCA), L.P. By: JPMP Master Fund Manager, L.P., its General Partner By: JPMP Capital Corp., its General Partner By: /s/ Jeffrey C. Walker -------------------------------- Name: Jeffrey C. Walker Title: President SEC 1745 (3-98) Page 5 of 10 Pages

SCHEDULE 13G ISSUER: Wesco International CUSIP NO.: 95082P105 EXHIBIT 2(A) This statement is being filed by J.P. Morgan Partners (BHCA), L.P. (formerly known as Chase Equity Associates, L.P.), a Delaware limited partnership (hereinafter referred to as "JPMP (BHCA)"), whose principal business office is located at 1221 Avenue of the Americas, New York, New York 10020. JPMP (BHCA) is engaged in the venture capital and leveraged buyout business. The general partner of JPMP (BHCA) is JPMP Master Fund Manager, L.P. (formerly known as Chase Capital Partners, a New York general partnership), a Delaware limited partnership (hereinafter referred to as "JPMP Master Fund"), whose principal business office is located at the same address as JPMP (BHCA), and is also directly or indirectly (through affiliates) engaged in the venture capital and leveraged buyout business. The general partner of JPMP Master Fund is JPMP Capital Corp. (formerly known as Chase Capital Corporation), a New York corporation (hereinafter referred to as "JPMP Capital Corp."), whose principal business office is located at the same address as JPMP (BHCA), and is also engaged in the venture capital and leveraged buyout business. Set forth in Schedule A hereto and incorporated herein by reference are the names, business addresses, principal occupations and employments of each executive officer and director of JPMP Capital Corp. JPMP Capital Corp. is a wholly owned subsidiary of J.P. Morgan Chase & Co. (formerly known as The Chase Manhattan Corporation), a Delaware corporation (hereinafter referred to as "JP Morgan Chase") which is engaged (primarily through subsidiaries) in the commercial banking business with its principal office located at 270 Park Avenue, New York, New York 10017. Set forth in Schedule B hereto and incorporated herein by reference are the names, business addresses, principal occupations and employments of each executive officer and director of JP Morgan Chase. SEC 1745 (3-98) Page 6 of 10 Pages

SCHEDULE 13G ISSUER: Wesco International CUSIP NO.: 95082P105 SCHEDULE A JPMP CAPITAL CORP. EXECUTIVE OFFICERS(1) President Jeffrey C. Walker* Executive Vice President Mitchell J. Blutt, M.D.* Executive Vice President Arnold L. Chavkin* Executive Vice President John M.B. O'Connor* Managing Director Dr. Dana Beth Ardi* Managing Director John R. Baron* Managing Director Christopher C. Behrens* Managing Director David S. Britts* Managing Director Julie Casella-Esposito* Managing Director Jerome Colonna* Managing Director Rodney A. Ferguson* Managing Director David L. Ferguson* Managing Director David Gilbert* Managing Director Eric A. Green* Managing Director Michael R. Hannon* Managing Director Donald J. Hofmann, Jr. * Managing Director W. Brett Ingersoll* Managing Director Alfredo Irigoin* Managing Director Andrew Kahn* Managing Director Jonathan R. Lynch* Managing Director Thomas G. Mendell* Managing Director Stephen P. Murray* Managing Director Timothy Purcell* Managing Director Faith Rosenfeld* Managing Director Robert R. Ruggiero, Jr. * Managing Director Susan L. Segal* Managing Director Kelly Shackelford* Managing Director Shahan D. Soghikian* Managing Director Patrick J. Sullivan* Managing Director Timothy J. Walsh* Managing Director Richard D. Waters, Jr. * Managing Director Damion E. Wicker, M.D.* Managing Director Eric R. Wilkinson* Senior Vice President Marcia Bateson* Senior Vice President and Assistant Secretary Mounir Nahas* Senior Vice President and Assistant Secretary Stephen Skoczylas* Senior Vice President, Treasurer and Assistant Secretary Elisa R. Stein* Vice President and Assistant Secretary Jeffrey Glatt* Vice President and Assistant Secretary Puneet Gulati* Vice President and Assistant Secretary Sandra King* Vice President and Assistant Secretary Scott Kraemer* Secretary Anthony J. Horan** Assistant Secretary Robert C. Caroll** Assistant Secretary Denise G. Connors** - -------- (1) Each of whom is a United States citizen except for Messrs. Britts, Irigoin, and Soghikian. * Principal occupation is employee and/or officer of J.P. Morgan Partners, LLC. Business address is c/o J.P. Morgan Partners, LLC, 1221 Avenue of the Americas, New York, New York 10020. ** Principal occupation is employee or officer of J.P. Morgan Chase & Co. Business address is c/o J.P. Morgan Chase & Co., 270 Park Avenue, New York, New York 10017. SEC 1745 (3-98) Page 7 of 10 Pages

SCHEDULE 13G ISSUER: Wesco International CUSIP NO.: 95082P105 DIRECTORS(1) William B. Harrison** Jeffrey C. Walker* - -------- (1) Each of whom is a United States citizen except for Messrs. Britts, Irigoin, and Soghikian. * Principal occupation is employee and/or officer of J.P. Morgan Partners, LLC. Business address is c/o J.P. Morgan Partners, LLC, 1221 Avenue of the Americas, New York, New York 10020. ** Principal occupation is employee or officer of J.P. Morgan Chase & Co. Business address is c/o J.P. Morgan Chase & Co., 270 Park Avenue, New York, New York 10017. SEC 1745 (3-98) Page 8 of 10 Pages

SCHEDULE 13G ISSUER: Wesco International CUSIP NO.: 95082P105 SCHEDULE B J.P. MORGAN CHASE & CO. EXECUTIVE OFFICERS(1) Chairman of the Board and Chief Executive Officer William B. Harrison Jr.* Vice Chairman; Co-Chief Executive Officer, Investment Bank Geoffrey T. Boisi * Vice Chairman; Head of Retail and Middle Market, Financial Services and Management and Private Banking David A. Coulter* Director of Human Resources John J. Farrell* Vice Chairman; Chairman, Investment Bank Walter A. Gubert* Vice Chairman Thomas B. Ketchum* Director of Corporate Marketing and Communications Frederick W. Hill* Vice Chairman; Co-Chief Executive Officer, Investment Bank Donald H. Layton* Vice Chairman James B. Lee Jr. * General Counsel William H. McDavid* Vice Chairman; Head of Finance, Risk Management and Administration Marc J. Shapiro* Vice Chairman Jeffrey C. Walker** Executive Vice President; General Auditor William J. Moran* Chief Financial Officer Dina Dublon* Executive Vice President; Head of Market Risk Management Lesley Daniels Webster* Managing Director; Corporate Treasurer David B. Edelson* Managing Director; Head of Credit Risk Policy Suzanne Hammett* Corporate Secretary Anthony James Horan* Senior Vice President; Chief Compliance Officer Gregory S. Meredith* Controller Joseph L. Scalfani* Assistant Corporate Secretary James C. Berry* DIRECTORS(1) PRINCIPAL OCCUPATION OR EMPLOYMENT; NAME BUSINESS OR RESIDENCE ADDRESS - -------------------------------------------------------------------------------- Hans W. Becherer Retired Chairman of the Board and Chief Executive Officer Deere & Company One John Deere Place Moline, IL 61265 - -------------------------------------------------------------------------------- Riley P. Bechtel Chairman and Chief Executive Officer Bechtel Group, Inc. P.O. Box 193965 San Francisco, CA 94119-3965 - -------------------------------------------------------------------------------- Frank A. Bennack, Jr. President and Chief Executive Officer The Hearst Corporation 959 Eighth Avenue New York, New York 10019 - -------------------------------------------------------------------------------- (1) Each of whom is a United States citizen. * Principal occupation is employee or officer of J.P. Morgan Chase & Co. Business address is c/o J.P. Morgan Chase & Co., 270 Park Avenue, New York, New York 10017. ** Principal occupation is employee and/or officer of J.P. Morgan Partners, LLC. Business address is c/o J.P. Morgan Partners, LLC, 1221 Avenue of the Americas, New York New York 10020. SEC 1745 (3-98) Page 9 of 10 Pages

SCHEDULE 13G ISSUER: Wesco International CUSIP NO.: 95082P105 - -------------------------------------------------------------------------------- Lawrence A. Bossidy Chairman of the Board Honeywell International P.O. Box 3000 Morristown, NJ 07962-2245 - -------------------------------------------------------------------------------- M. Anthony Burns Chairman of the Board Ryder System, Inc. 3600 N.W. 82nd Avenue Miami, Florida 33166 - -------------------------------------------------------------------------------- H. Laurence Fuller Retired Co-Chairman BP Amoco p.l.c. 1111 Warrenville Road, Suite 25 Chicago, Illinois 60563 - -------------------------------------------------------------------------------- Ellen V. Futter President and Trustee American Museum of Natural History Central Park West at 79th Street New York, NY 10024 - -------------------------------------------------------------------------------- William H. Gray, III President and Chief Executive Officer The College Fund/UNCF 9860 Willow Oaks Corporate Drive P.O. Box 10444 Fairfax, Virginia 22031 - -------------------------------------------------------------------------------- William B. Harrison, Jr. Chairman of the Board and Chief Executive Officer J.P. Morgan Chase & Co. 270 Park Avenue, 8th Floor New York, New York 10017-2070 - -------------------------------------------------------------------------------- Helene L. Kaplan Of Counsel Skadden, Arps, Slate, Meagher & Flom LLP Four Times Square New York, New York 10036 - -------------------------------------------------------------------------------- Lee R. Raymond Chairman of the Board and Chief Executive Officer Exxon Mobil Corporation 5959 Las Colinas Boulevard Irving, TX 75039-2298 - -------------------------------------------------------------------------------- John R. Stafford Chairman of the Board American Home Products Corporation 5 Giralda Farms Madison, New Jersey 07940 - -------------------------------------------------------------------------------- Lloyd D. Ward Chief Executive Officer U.S. Olympic Committee One Olympic Plaza Colorado Springs, CO 80909 - -------------------------------------------------------------------------------- Marina v.N. Whitman Professor of Business Administration and Public Policy The University of Michigan School of Public Policy 411 Lorch Hall, 611 Tappan Street Ann Arbor, MI 48109-1220 - -------------------------------------------------------------------------------- SEC 1745 (3-98) Page 10 of 10 Pages