ZN63(VS1)-12 户内高压真空断路器是三相交流 50Hz、额定电压 12kV 的户内高压开关设备，可作为工矿企业动力设备的保护和控制单元。
        ZN63(VS1)-12 Indoor High-Voltage Vacuum Circuit Breaker is an indoor high-voltage switchgear for three-phase AC 50Hz with a rated voltage of 12kV. It can be used as a protection and control unit for power equipment in industrial and mining enterprises.