Guide for the application, handling, storage, installation and maintenance of medium-voltage AC contactors, controllers and control center


Apr 20, 2010

The National Electrical Manufacturers Association (NEMA) has published ICS 3.1-2009 Guide for the Application, Handling, Storage, Installation, and Maintenance of Medium-Voltage AC Contactors, Controllers, and Control Centers.

This publication, last revised in 1997, provides information regarding the application, handling, storage, installation, and maintenance of ac general-purpose medium-voltage contactors and Class E controllers. The guide has been updated to reflect changes in technology.

ICS 3.1 may be downloaded at no charge, or a hardcopy purchased for $75, by visiting, or by contacting IHS at (800) 854-7179 (within the U.S.), (303) 397-7956 (international), (303) 397-2740 (fax), or

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