American Power Conversion and Industry Leaders to Discuss ''Power and Communications'' at the Bear Stearns Industrial and Power Technologies Conference

Live Webcast of Panel on Monday, May 21 at 4:00 PM Eastern Time

WEST KINGSTON, R.I. -- May 18, 2001 -- American Power Conversion (Nasdaq:APCC) will join leading industry participants in a panel discussion on "Power and Communications" at the Bear Stearns Industrial and Power Technologies (Industrial Internet) Conference. The panel will take place on Monday, May 21 at 4:00 PM Eastern time at the Fairmont Copley Plaza Hotel in Boston, MA.

A Webcast of the panel discussion will be available live to the public in a listen-only mode on Bear Stearns' Web site. You can access this Webcast via APC's Web site at www.apcc.com/corporate/investor/. An archive of the session will be available for thirty days following the conference.

For further information visit APC's Web site or contact APC investor relations at 401-789-5735 ext. 2994 or investorrelations@apcc.com. To learn more about the Bear Stearns Industrial Internet Conference visit www.bearstearns.com/conferences/industrialinternet/index.htm.

About American Power Conversion Founded in 1981, American Power Conversion (Nasdaq: APCC) is a leading provider of global, end-to-end availability enhancement solutions which include surge suppressors, uninterruptible power supplies (UPS), DC-based power systems, precision cooling equipment, cabling and connectivity solutions, power conditioning equipment, related software, professional and consulting services for Nonstop Networking™, as well as power purchasing solutions through energyOn.com, The World's Online Energy Store. APC's comprehensive products, services and accessory offering, which is designed for both home and corporate environments, improves the availability, manageability and performance of sensitive electronic, network, communication and industrial equipment of all sizes. APC, which is headquartered in West Kingston, Rhode Island, reported sales of $1.48 billion for the year ended December 31, 2000 and is a Fortune 1000 and S&P 500 company.

All trademarks are the property of their owners. Additional information about APC and its global end-to-end solutions can be found by accessing the APC World Wide Web site at www.apcc.com or by calling 800-877-4080.