IEM Switchboard Metering Sockets Now UL-Rated to 100kA Using Breakers

Monday, March 16, 2009

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IEM, the largest independent full-line manufacturer of electrical and power quality equipment in the U.S., has completed testing and certification under UL 891 guidelines for low voltage switchgear metering sockets to a 100kA short circuit rating using breakers as protective devices instead of fuses. Three meter sockets in a 24” wide enclosure or six meter sockets in a 34” enclosure are available where the use of current limiting breakers will ensure that the peak let-through current does not exceed 30kA per UL guidelines.

“IEM has been building metering sockets into its switchgear for a number of decades using fuses for protection,” said Don Kozerski, Vice President of Marketing & Sales at IEM.  “However, some of today’s applications require breakers instead of fuses for ease of coordination and reset in the event of a fault.  IEM can now meet this requirement as an added feature of our UL 891 switchgear.  We offer a variety of current-limiting breakers as part of our meter sockets so that flexibility with respect to customer preference is still maintained.”

About IEM

Headquartered in Fremont, CA, IEM is the largest independent full-line manufacturer of electrical distribution and power quality equipment in the U.S.  For over half a century, IEM has delivered 
customer-specific solutions to meet the ever changing power requirements of growth industries in North America.  At IEM, tradition and technology still drive innovation.  An experienced engineering staff and one of the most flexible design and manufacturing systems in the industry set IEM apart from standard product manufacturers.