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NEMA Standard addresses heavy-duty switches.
Press Release Summary:
Apr 07, 2014 - NEMA has published NEMA KS 1-2013 standard, which covers heavy-duty enclosed and dead-front switches that are rated at not more than 600 V and 4,000 A with or without horsepower rating.Â DC ratings shall be up to and including 600 V, 1200 A; 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 enclosed switchboard, panelboard, or similar; and manually operable by means of external handles.
Original Press Release
NEMA Publishes Standard NEMA KS 1-2013 Heavy Duty Enclosed and Dead-Front Switches (600 Volts Maximum)
Press release date: Apr 01, 2014
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. Its 400-plus member 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.
National Electrical Manufacturers Association
Visit our website at www.nema.org
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