ZW43-12F outdoor high-voltage intelligent vacuum circuit breaker is an outdoor high-voltage switchgear with rated voltage of 12kV and three-phase AC 50Hz.It is mainly used for switching off and closing load current, overload current and short circuit current of power system. It is suitable for the protection and control of substation, industrial and mining enterprises and urban and rural distribution network, especially for the place with frequent operation and automatic distribution network of urban network. Meet the following standards: GB/T1984 "HIGH Voltage AC Breaker", GB/T11022 "Common Technical Requirements for High Voltage Switching Equipment and Control Equipment Standards", DI402 "Technical Conditions for Ordering HIGH voltage Circuit Breakers"