NEMA KS 1

Abstract

This Standards Publication covers enclosed and miscellaneous distribution equipment switches that are:<br>a. Rated at not more than 600 volts and 6000 amperes with or without a horsepower rating<br>b. With or without provision for fuses<br>c. With current-carrying parts and mechanisms enclosed in metallic or nonmetallic cases, or that are enclosed when mounted in an enclosed switchboard, panelboard, or the like <br>d. Manually operable by means of external handles<br>Note&#8212;These devices may also be automatically operable by means of shunt trips, electrical operators, ground fault devices, or other mechanisms.<br>This standards publication does not cover:<br>a. The common form of snap switches<br>b. Switching devices having features intended primarily for the starting and running protection of electric motors as described in NEMA Standards Publications ICS 1, ICS 2, and ICS 3<br>c. Circuit-breaker-type power circuit protectors<br>d. Molded case switches as described in NEMA Standards Publication AB 1<br>Fuses, lampholders, receptacles, wire connectors, wires and cables, etc., which may be provided as parts of an enclosed switch, are covered under other NEMA standards publications.