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

04/1/2014 12:00PMSign-up to receive press releases.

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. 

The National Electrical Manufacturers Association (NEMA) represents nearly 400 electrical, medical imaging, and radiation therapy manufacturers. Our combined industries account for more than 400,000 American jobs and more than 7,000 facilities across the U.S. Domestic production exceeds $117 billion per year. Our industry is at the forefront on electrical safety, reliability, resilience, efficiency, and energy security.

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