scope:

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