Historical
ANSI/NEMA KS 2-2013
Distribution Equipment Switch Application Guide, A User's Reference
This publication covers application information for distribution equipment switches that are: a) Rated at not more than 600V and 6000A with or without a horse-power rating b) With or without provision for fuses c) With current-carrying parts and mechanisms enclosed in metallic or non-metallic cases, or that are enclosed when mounted in an enclosed switchboard, panel board, or the like d) Manually operable by means of external handles NOTE - These devices may also be automatically operable by means of shunt trips, electrical operators, ground fault devices, or other mechanisms. This publication does not cover: a) The common form of snap switches b) Switching devices having features intended primarily for the starting and running protection of electric motors c) Circuit-breaker-type power circuit protectors d) Molded case switches e) Transfer switches
NEMA: National Electrical Manufacturers Association [nema]