American Power Conversion''''s Smart-UPS® 1000 wins Computer Reseller News Test Center "Editor''s Choice" award

This is the third time this year that an APC solution has been recognized by CRN. In May of 1998, APC received the CRN Test Center at Comdex "Recommended" designation for its MasterSwitch network power controller device. In June of 1998, for the fifth year in a row, APC received CRN's "Channel Champion" award in the UPS category.

Computer Reseller News, which provides information to computer resellers by offering coverage of the latest technology, market trends and business alliances across the industry, conducted its latest CRN Test Center by examining ten workstation-class UPSs rated at 700 VA or greater. The Test Center evaluated the line conditioning, battery power time, signal quality, cost-effectiveness, serviceability and display of each device.

Excerpts from the Computer Reseller News Test Center review include: "American Power Conversion's Smart-UPS 1000 offers the longest battery uptime, the best output waveform and an informative display. And the UPS does not sacrifice cost-effectiveness to deliver this performance... Perennial channel champ APC still offers a sterling program that shines, particularly for small to midsize VARs."

"APC is very pleased to be recognized three times this year as a leading power protection solution provider by Computer Reseller News," said John Donovan, manager of APC's North American Reseller Channel. "We are committed to excellence in our product offering as well as in our channel programs and this CRN award recognizes our success."

APC continues to enhance its innovative channel program offering. Most recently the Company announced its 14-city fall tour of APC "Reliability by Design" seminars, which teach resellers and consultants how to further enhance the reliability of the small business networks they design.

For more information about APC's complete desktop power protection and management solutions, in addition to APC's channel programs, visit APC's Web site at www.apcc.com or call 800-877-4080. # # #

American Power Conversion (NASDAQ:APCC) is a leader in the designing, manufacturing, and marketing of power protection equipment, including surge suppressors, uninterruptible power supplies (UPS), and power conditioning equipment and related software for computer and computer-related equipment. APC reported sales of $873 million for the year ended December 31, 1997. The company is headquartered in West Kingston, RI, and its products are distributed worldwide.

Product lines include: Back-UPS®, Smart-UPS®, Matrix-UPS(TM), Symmetra Power Array, PowerShield(TM) UPS, Line-R(TM) power conditioners, SmartSlot(TM) UPS accessories, MasterSwitch(TM)PDUs, PowerChute® software, PowerNet(TM) SNMP adapters and software, SurgeArrest® surge suppressors, ProtectNet(TM) data-line surge suppressors, PowerManager(TM) PowerCenters, and PowerAudit® consulting.

American Power Conversion is an affirmative action/equal opportunity employer. (All trademarks are the property of their owners).

Additional information about APC and its products can be found on the World Wide Web at http://www.apcc.com or by calling 800-877-4080.

For more information contact:

Jodi Kennedy, APC director of media relations, worldwide, 800 788 2208, ext. 2158, jkennedy@apcc.com Debbie Grey, APC investor relations manager, 800 788 2208, ext. 2994, dgrey@apcc.com