U.S. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ___________________ FORM 11-K (Mark One) [ X ] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES AND EXCHANGE ACT OF 1934 (No Fee Required) For the fiscal year ended December 31, 2002 or [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (No Fee Required) For the transition period from ______________ to ______________ Commission File Number 1-12432 A. Full title of the plan and the address of the plan, if different from that of the issuer named below: American Power Conversion Corporation 401(k) Plan B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office: American Power Conversion Corporation 132 Fairgrounds Road West Kingston, Rhode Island 02892 1 REQUIRED INFORMATION A. Financial Statements and Schedules Page Independent Auditors' Report 5 Statements of Net Assets Available for Plan Benefits as of December 31, 2002 and 2001 6 Statements of Changes in Net Assets Available for Plan Benefits for the Years Ended December 31, 2002 and 2001 7 Notes to Financial Statements 8-13 Schedule I - Schedule of Assets Held for Investment Purposes as of December 31, 2002 14 B. Exhibit Listing Exhibit Number Description 23 Consent of KPMG LLP			 15 99.1	 Certification				 16 SIGNATURES The Plan. Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized. AMERICAN POWER CONVERSION CORPORATION 401(K) PLAN (Name of Plan) By: American Power Conversion Corporation, Plan Administrator By: /s/ Donald M. Muir - ------------------------------------------------- Donald M. Muir, Senior Vice President, Finance and Administration, Treasurer and Chief Financial Officer June 30, 2003 2 AMERICAN POWER CONVERSION CORPORATION 401(K) PLAN Financial Statements and Schedules December 31, 2002 and 2001 (With Independent Auditors' Report Thereon) 3 AMERICAN POWER CONVERSION CORPORATION 401(K) PLAN December 31, 2002 and 2001 Table of Contents 		 Page Independent Auditors' Report 	 5 Statements of Net Assets Available for Plan Benefits 	 6 Statements of Changes in Net Assets Available for Plan Benefits 	 7 Notes to Financial Statements 		 8-13 Schedule 1 Schedule of Assets Held for Investment Purposes as of December 31, 2002 14 Note:	Certain schedules as required by Section 103(b)(3) of the Employee 	Retirement Income Security Act of 1974, have not been included 	herein as the information is not applicable. 4 Independent Auditors' Report The 401(k) Plan Committee American Power Conversion Corporation: We have audited the accompanying statements of net assets available for plan benefits of the American Power Conversion Corporation 401(k) Plan as of December 31, 2002 and 2001, and the related statements of changes in net assets available for plan benefits for the years then ended. These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements referred to above present fairly, in all material respects, the net assets available for plan benefits of the American Power Conversion Corporation 401(k) Plan as of December 31, 2002 and 2001, and the changes in net assets available for plan benefits for the years then ended, in conformity with accounting principles generally accepted in the United States of America. Our audits were made for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental Schedule of Assets (Held at End of Year) is presented for the purpose of additional analysis and is not a required part of the basic financial statements, but is supplementary information required by the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. This supplemental schedule is the responsibility of the Plan's management. The supplemental schedule has been subjected to the auditing procedures applied in the audit of the basic financial statements as of December 31, 2002, and in our opinion, is fairly stated in all material respects in relation to the basic financial statements taken as a whole. Providence, Rhode Island /s/ KPMG LLP May 19, 2003 5 AMERICAN POWER CONVERSION CORPORATION 401(k) PLAN Statements of Net Assets Available for Plan Benefits December 31, 2002 and 2001 2002 2001 						 	 Cash $8,113 $16,576 Receivables: Employer's contribution 214,376 231,031 Accrued income 29,341 28,098 Participants' contributions 12,675 25,719 264,505 301,424 Investments (note 3): American Power Conversion Corporation common stock 14,654,355 11,577,849 Investments in common/collective trusts: Merrill Lynch Equity Index Trust 	 1,771,796 1,585,608 Merrill Lynch Retirement Preservation Trust 2,077,141 1,494,006 			 3,848,937 3,079,614 Mutual Funds: Blackrock Small Cap Growth - 1,797,916 Alliance Bond Fund Corporate - 895,651 Merrill Lynch Equity Income Fund Class A 1,491,132 1,456,492 Merrill Lynch Fundamental Growth Fund Class A 2,416,310 2,645,505 Ivy International Fund - 1,541,169 MFS Massachusetts Investors Growth 2,065,983 2,405,264 Pimco Total Return Fund Class A 1,593,483 - MFS New Discovery Fund Class A 1,419,109 - Ariel Fund 828,599 - Templeton Foreign Fund 1,564,861 - Merrill Lynch Basic Value Fund Class A 2,471,324 2,388,714 13,850,801 13,130,711 Loans to participants 677,545 607,400 Total investments 33,031,638 28,395,57 Net assets available for plan benefits $33,296,143 $28,696,998 See accompanying notes to financial statements. 6 AMERICAN POWER CONVERSION CORPORATION 401(k) PLAN Statements of Changes in Net Assets Available for Plan Benefits Years ended December 31, 2002 and 2001 2002 2001 						 Additions (deductions) to net assets attributed to: Investment income (loss): Net realized losses $(523,374) $(113,874) Net unrealized losses (2,168,044) (1,437,293) Interest 45,001 45,287 Dividends 354,523 433,634 (2,291,894) (1,072,246) Contributions: Participants 5,849,578 6,153,265 Employer 3,256,767 3,332,109 9,106,345 9,485,374 Total additions 6,814,451 8,413,128 Deductions from net assets attributed to: Distributions paid to participants 2,200,626 1,805,572 Total deductions 2,200,626 1,805,572 Net increase prior to other 4,613,825 6,607,556 Other (14,680) (4,093) Net increase in net assets available for benefits 4,599,145 6,603,463 Net assets available for benefits: Beginning of year 28,696,998 22,093,535 End of year $33,296,143 $28,696,998 See accompanying notes to financial statements. 7 AMERICAN POWER CONVERSION CORPORATION 401(k) PLAN Notes to Consolidated Financial Statements December 31, 2002 and 2001 (1) Description of Plan The following brief description of the American Power Conversion Corporation 401(k) Plan (the Plan) provides only general information. Participants should refer to the Plan agreement for a more complete description of the Plan's provisions. (a) General The Plan is a qualified defined contribution plan covering American Power Conversion Corporation (the Company) employees who have completed at least 45 days of service with the Company. The Plan covers all U.S. employees working for the Company and the Participating Affiliates, APC America, Inc., APC Sales and Service Corporation, Systems Enhancement Corporation, Advanced Power, Inc., ABL Electronics Corp. and Airflow Company. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA). (b) Contributions The maximum salary savings (pre-tax) contribution that an employee may elect to contribute to the Plan is the lesser of 15% of annual gross compensation or the limit established by the IRS ($11,000 for 2002 and $10,500 for 2001). The Company may match this salary savings contribution at a rate of up to 100% of the first 3%, and during 1999, the Plan was amended to match up to 50% of the next 3% of the participant's salary and wage compensation, excluding bonuses, commissions, incentive compensation, taxable fringe benefits, moving expenses, auto and other allowances, and disqualifying dispositions of Company stock. Matching contributions are subject to a maximum amount of 6% per participant. The Company may also make discretionary profit- sharing contributions to the Plan. All employer matching and profit- sharing contributions are deposited to the American Power Conversion Corporation Common Stock Fund. There were no discretionary contributions made for the 2002 or 2001 Plan year. (c) Vesting Participants are fully vested to the extent of their salary savings contributions and earnings on those contributions. Furthermore, the Plan was amended in 1999, such that participants are immediately vested in employer matching contributions and the related earnings. However, any discretionary (profit-sharing) contributions vest on a schedule of 25% after 2 years of service, and an additional 25% per year thereafter until 100% vesting is reached after 5 years of service. (d) Loans to Participants Participants may borrow from their vested account balance under certain circumstances as provided in the Plan agreement. The minimum loan amount is $1,000 and participants may borrow the lesser of 50% of their vested account balance or $50,000. Interest on loans is charged at the prevailing commercial interest rate for loans of a similar type (Prime plus 1%) with a repayment term not to exceed five years. This term can be extended if the loan is used for the purchase of the participant's primary residence. A participant may not have more than one loan outstanding at any time. 8 (e) Payment of Account Balances Upon termination from the Plan, a participant's vested accrued balance in his or her account shall be distributed, as elected by the participant, in either a single lump-sum payment, or, provided the participant's vested account exceeds $5,000, in periodic installments not to exceed the participant's lifetime, or the joint lifetime of the participant and his/her spouse. Distributions may also be made in cash or in kind, or part cash and part in kind over a period not to exceed the participant's lifetime, or the joint lifetime of the participant and his/her spouse. (f) Hardship Withdrawal The Plan provides for hardship withdrawals, as defined by the Plan, from the participant's account. Participants who take a hardship withdrawal must be suspended from contributing to the Plan for a period of 6 months following the date of the withdrawal. (g) Forfeitures Forfeitures related to discretionary contributions are allocated to remaining participants in the succeeding plan year in the ratio that the compensation of each participant for the plan year bears to the total compensation of all participants entitled to share in the contributions so long as the forfeiture allocation group meets the requirements of Code Section 410(b). If the forfeiture allocation group does not meet the requirements of Code Section 410(b), then the trustee shall allocate non-highly compensated participants in the forfeiture allocation group an amount in the ratio that such compensation of each non-highly compensated participant in the group bears to the total compensation of all non-highly compensated participants. No forfeiture allocations are made to highly compensated employees. (2) Summary of Significant Accounting Policies (a) Basis of Presentation The accompanying financial statements of the Plan have been prepared using the accrual basis of accounting in accordance with accounting principles generally accepted in the United States of America. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of additions and deductions to net assets available for plan benefits during the reporting period. Actual results could differ from those estimates. (b) Investments Investments are stated at aggregate fair market values. Loans are valued at cost, which approximates fair value. Quoted market prices are used to value investments. Purchases and sales of securities are recorded on a trade-date basis. Dividends are recorded on the ex-dividend date. 9 (c) Expenses All expenses of the Plan are paid by the Company in accordance with the Plan agreement, with the exception of loan set-up fees, which are paid by each participant receiving a loan, and are paid out of the participant's account. In 2002 and 2001, these administrative expenses totaled $8,642 and $4,093, respectively, and are included in the "Statement of Changes in Net Assets Available for Plan Benefits" under the heading "Other". (d) Payment of Account Balances Distributions are recorded when paid. (3) Investments The Plan's investments are held in trust and managed by Merrill Lynch. Participants may direct employer and employee contributions into any of the investment options listed below. The following table summarizes the investments held by Merrill Lynch at December 31, 2002 and 2001. Investments representing 5% or more of net assets available for plan benefits are indicated by an asterisk (*). 2002 2001 Number of Fair Market Number of Fair Market shares value shares value American Power Conversion Corporation common stock (note 4)		 967,284 $14,654,355* 800,681 $11,577,849* Merrill Lynch Equity Index Trust 28,281 1,771,796* 19,672 1,585,608* Merrill Lynch Retirement Preservation Trust 2,077,141 2,077,141* 1,494,006 1,494,006* Blackrock Small Cap Growth - - 143,718 1,797,916* Alliance Bond Fund Corporate - - 73,114 895,651 Merrill Lynch Equity Income Fund Class A 147,345 1,491,132 125,776 1,456,492* Merrill Lynch Fundamental Growth Fund Class A 187,166 2,416,310* 146,080 2,645,505* Ivy International Fund - - 74,489 1,541,169* MFS Massachusetts Investor Growth 223,833 2,065,983* 186,599 2,405,264* Merrill Lynch Basic Value Fund Class A 105,793 2,471,324* 81,582 2,388,714* Templeton Foreign Fund 188,311 1,564,861 - - Pimco Total Return Fund Class A 149,342 1,593,483 - - MFS New Discovery Fund Class A 124,157 1,419,109 - - Ariel Fund 23,513 828,599 - - 10 A brief description of each current fund's investment objective follows: Merrill Lynch Equity Index Trust invests primarily in a portfolio of equity securities designed to match the performance of the S&P 500 Index. Merrill Lynch Retirement Preservation Trust seeks to provide preservation of capital, liquidity, and current income at levels that are typically higher than those provided by money market funds. Merrill Lynch Equity Income Fund Class A provides shareholders with long- term total return by investing primarily in a diversified portfolio of dividend-paying common stocks that yield more than the S&P 500 Index. Total return is the aggregate of income and capital value changes. Merrill Lynch Fundamental Growth Fund Class A seeks long-term growth of capital by investing in a diversified portfolio of equity securities, placing particular emphasis on companies that have exhibited above- average growth rates in earnings. MFS Massachusetts Investors Growth seeks to provide long-term growth of capital and future income rather than current income. The fund may invest up to 50% of its total assets in foreign securities, including securities of issuers located in developing markets. Merrill Lynch Basic Value Fund Class A seeks capital appreciation, and secondarily, income, by investing primarily in equities that appear to be undervalued. Templeton Foreign Fund seeks to achieve long-term capital growth through a flexible policy of investing in the equity and debt securities of companies and governments outside the U.S. Although the Fund primarily invests in common stocks, it also may invest in preferred stocks and certain debt securities, rated or unrated. Pimco Total Return Fund Class A seeks to maximize total return, consistent with preservation of capital and prudent investment management. Under normal circumstances, the Fund invests at least 65% of its total assets in a diversified portfolio of fixed-income securities of varying maturities. MFS New Discovery Fund Class A seeks capital appreciation by investing at least 65% of its total assets in U.S. or foreign companies that Fund management believes offer superior prospects for growth. Ariel Fund seeks long-term capital appreciation by investing in companies with market capitalization primarily under $1.5 billion at the time of investment, with an emphasis on small-cap stocks. American Power Conversion Corporation common stock is offered to Plan participants as an additional investment option. Merrill Lynch purchases the shares in the open market at the time contributions are received. The timing of all stock transactions is subject to the availability of American Power Conversion Corporation common stock on the open market, and prices are set by the market. 11 (4) Nonparticipant-Directed Investments The employer matching contribution is entirely directed to purchasing shares of common stock of American Power Conversion Corporation. However, once the employer match is invested in this fund the participant may reallocate the investment to any of the other funds in the Plan restricted only by the closed employee stock trading periods. Furthermore, employees may elect to direct a portion of their 401(k) contribution towards purchasing shares of common stock of American Power Conversion Corporation. Information about the net assets and the components of the changes in net assets relating to shares of common stock of American Power Conversion Corporation is as follows: December 31, 2002 2001 Net assets: American Power Conversion Corp. common stock $14,869,402 $11,811,194 Changes in net assets: Contributions $3,871,791 $4,453,629 Net realized (losses) gains (92,095) 180,933 Net unrealized gains 1,131,590 1,273,783 Benefits paid to participants (834,268) (711,566) Interest on outstanding participant loans 6,528 10,285 Net interfund transfers out (1,075,837) (346,620) Loan repayments 50,499 57,720 $3,058,208 $4,918,164 (5) Plan Termination Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. In the event of Plan termination, participants will be fully vested in their accounts. (6) Tax Status The Internal Revenue Service has determined and informed the Company by a letter dated October 6, 2000, that the Plan and related trust are designed in accordance with applicable sections of the Internal Revenue Code (IRC). Although the Plan has been amended since receiving the determination letter, the Plan administrator and the Plan's tax counsel believe that the Plan is designed and is currently being operated in compliance with the applicable requirements of the IRC. (7) Related-Party Transactions Certain Plan investments are shares of mutual funds managed by Merrill Lynch. Merrill Lynch is the trustee as defined by the Plan and, therefore, these transactions qualify as party-in-interest transactions. 12 (8) Realized/Unrealized Gains and Losses Net realized and unrealized gains and (losses) by investment type for the year ended December 31, 2002 and 2001 were comprised of the following: 2002 2001 Realized Unrealized Realized Unrealized Common stocks $(92,095) $1,131,590 $180,932 $1,273,783 Common/collective trusts (400,551) (395,003) (16,666) (141,705) Mutual funds (30,728) (2,904,631) (278,140) (2,569,371) Total $(523,374) $(2,168,044) $(113,874) $(1,437,293) (9) Asset Transfer from Other Plans In December 2002, the Board of Directors of the Company voted to merge the assets of the American Power Conversion Employee Stock Ownership Plan ("ESOP") into the American Power Conversion Corporation 401(k) Plan during the 2003 Plan year. During May 2003, the participants of the ESOP were notified of the anticipated merger, which is expected to be effective on July 1, 2003. 13 Schedule 1 AMERICAN POWER CONVERSION CORPORATION 401(k) PLAN Schedule H, Line 4i - Schedule of Assets (Held at End of Year) December 31, 2002 Identity of issuer, borrower, lessor, Description of Current or similar party Investment Cost Value *American Power Conversion Corp. Common Stock $13,465,248 $14,654,355 *Merrill Lynch EquityIndex Trust 2,166,799 1,771,796 *Merrill Lynch Retirement Preservation Trust 2,077,141 2,077,141 *Merrill Lynch Equity Income Fund Class A 1,679,029 1,491,132 *Merrill Lynch Fundamental Growth Fund Class A 3,212,217 2,416,310 MFS Massachusetts Investors Growth 2,714,224 2,065,983 Templeton Foreign Fund 1,787,375 1,564,861 Pimco Total Return Fund Class A 1,575,857 1,593,483 MFS New Discovery Fund Class A 1,952,881 1,419,109 Ariel Ariel Fund 904,329 828,599 *Merrill Lynch Basic Value Fund Class A 2,986,770 2,471,324 *Loans to participants Various loans with interest (177 loans) rates of 5.25% to 10.5% - 677,545 $33,031,638 * Indicates a party-in-interest to the Plan. See accompanying independent auditors' report. 14 Exhibit 23 Independent Auditors' Consent The Board of Directors American Power Conversion Corporation: We consent to incorporation by reference in the registration statements of American Power Conversion Corporation on Form S-8 (File Nos. 33-25873, 33-54416, 333-32563, 333-78595, 333-80541, 333-80569 and 333-91994) of our report dated May 19, 2003, relating to the statements of net assets available for plan benefits of the American Power Conversion Corporation 401(k) Plan as of December 31, 2002 and 2001, and the related statements of changes in net assets available for plan benefits for the years then ended, and the related supplementary schedule, which report appears in the December 31, 2002 annual report on Form 11-K of the American Power Conversion Corporation 401(k) Plan. Providence, Rhode Island /s/ KPMG LLP June 27, 2003 15 Exhibit 99.1 Certification In connection with the Annual Report for the American Power Conversion Corporation 401(k) Plan (the "Plan") on Form 11-K for the fiscal year ended December 31, 2002 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Donald M. Muir, in my capacity as Senior Vice President, Finance and Administration, Treasurer and Chief Financial Officer of American Power Conversion Corporation, the Plan Administrator of the Plan, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that: (1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) The information contained in the Report fairly presents, in all material respects, the net assets available for benefits and the changes in net assets available for benefits of the Plan. By: /s/ Donald M. Muir - ------------------------------------------------ Donald M. Muir, Senior Vice President, Finance and Administration, Treasurer and Chief Financial Officer, American Power Conversion Corporation, Plan Administrator June 30, 2003 The foregoing certification is being furnished solely pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) and is not being filed as part of a separate disclosure document. 16