3VU Circuit Breaker

3VU Circuit breakers are applicable for circuit of AC 50Hz(or 60Hz),rated insulation Voltage 750V,rated operating Voltage under AC 660V,rated operating current0.1-52A which is used for protecting the motor against overload,short-circuit and phase-failure. It can also be used for staring and breaking the starter of motor ,and the circuit protection in the circuit of 63A.