This publication covers application and maintenance 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

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