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ANSI/NEMA KS 2-2013 (R2023)
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, panelboard, or the like d) Manually operable by means of external handles.
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NEMA: National Electrical Manufacturers Association [nema]