... AC 50/60Hz, up to 660V, 0.1-80A power circuit, as a full-voltage starter to start and cut off ... the AC3 load or for the overload and short circuit protection of the circuit and power equipment in the power distribution network ... .Motor protection circuit breaker series: MPCB, motor protecting circuit breaker, circuit breaker, breaker, 3VE1, 3VE3, 3VE4, GV1, GV2 ...