... Telemecanique standard 1.SpecificationGV series motor protection circuit breaker are mainly used fo the overload and short circuit protection of the motor in AC 50/60Hz, ... 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, ...