ZN63(VS1)-12 indoor high-voltage vacuum circuit breaker is an indoor switching equipment of three-phase AC 50HZ rated voltage of 12KV power system, which serves as the protection and control unit for power network equipment and power equipment of industrial and mining enterprises. It is suitable for frequent operation at rated working current or more alternating current of short circuit.

The circuit breaker adopts the integrated design of operating mechanism and circuit breaker itself, which can be used as a fixed installation unit or equipped with a special propulsion mechanism to form a handcart unit.