1.1 These requirements cover molded-case circuit breakers, molded-case switches, and circuit-breaker
enclosures rated up to 1500 V dc, intended for use with photovoltaic (PV) systems and Ref. No. 1 of
Annex B.
1.2 These requirements are intended to be used in conjunction with the requirements in Ref. No. 2 of
Annex B, except as modified or supplemented by this Standard.
1.3 These requirements do not cover molded-case circuit breakers or molded-case switches intended for
use in battery circuits.