50HZ ZW20-12 Outdoor Column Intelligent Vacuum Circuit Breaker Product Description: ZW20-12 outdoor column intelligent vacuum circuit breaker is an outdoor distribution equipment with 12kV for the highest rated voltage and 50Hz three-phase AC. The utility model is mainly used for load current, overload current and short circuit current in the open and close power system of the distribution network. Application: It is applicable to substations and industrial and mining enterprises in the distribution system for protection and control, more suitable for rural power grid and frequent operation and particularly applicable in the city network and rural power grids. Product Specification: