CAN/CSA-C22.2 NO. 4-M89 (R2000)

Scope

1.1
This Standard applies to enclosed airbreak switches for use in nonhazardous locations, in accordance with the Rules of the Canadian Electrical Code, Pazt 2, that have all current-carrying parts enclosed and are manually operable by means of external handles, and with maximum ratings of 1200 A or less at 600 V or less.

1.2 This Standard does not apply to

(a) snap and tumbler switches;
(b) circuit breakers, moulded case switches, and magnetic only circuit interrupters;
(c) switches having features (other than fuses) intended for the starting and protection of motors;
(d) switches with automatic trips affording protection for equipment where no circuit breakers or fuses are used;
(e) switches that have enclosed with them fuse terminals for more than four branch circuits;*
(f) devices in which the pulling of fuses or the removal of a pull-out member is designed to accomplish a switching operation; {g) door-operated switches. *A meter loop is not counted as a hranch circuit.