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NEMA Publishes Standard NEMA KS 1-2013 Heavy Duty Enclosed and Dead-Front Switches (600 Volts Maximum)


04/1/2014 12:00PM

The National Electrical Manufacturers Association (NEMA) published NEMA KS 1-2013 Heavy Duty Enclosed and Dead-Front Switches (600 Volts Maximum).

NEMA KS 1-2013 sets requirements for heavy duty-rated products which extend beyond traditional performance. This standard covers heavy duty enclosed and dead-front switches that are:

  • rated at not more than 600 volts and 4000 amperes with or without a horse­power rating. The dc ratings shall be up to and including 600 volts, 1200 amperes;
  • with or without provision for fuses;
  • with current-carrying parts and mechanisms enclosed in metallic or nonmetallic cases, or that are enclosed when mounted in an enclosed switchboard, panelboard, or similar; and
  • manually operable by means of external handles.

NEMA KS 1 may be downloaded at no cost or purchased in hardcopy for $118 on the NEMA website. 

NEMA is the association of electrical equipment and medical imaging manufacturers, founded in 1926 and headquartered in Rosslyn, Virginia. Nearly 400 members strong, its companies manufacture a diverse set of products including power transmission and distribution equipment, lighting systems, factory automation and control systems, and medical diagnostic imaging systems. Total U.S. shipments for electroindustry products exceed $100 billion annually.

Press/Public Relations Contacts:
NEMA Communications Department
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