... overload and short circuit protection . GV MOTOR PROTECTION CIRCUIT BREAKER (MPCB)GV series motor protection circuit breakers are mainly used for ... the overload and short circuit protection of the motor in AC50/60HZ,up to 660V,0.1-80A ... full voltage starter to start and cut off the motor,under the Ac3 load or for the overload and ... -M,GV2-ME,GV3-M,GV3-ME GV2 MOTOR PROTECTION CIRCUIT BREAKER (MPCB)