The ZW32-12□/T630(1250)-25 Primary and Secondary Fusion Vacuum Circuit Breaker (hereinafter referred to as the circuit
breaker) is an outdoor distribution equipment with a rated voltage of 12kV and three-phase AC 50Hz. It is mainly used for breaking,closing, and handling load currents, overload currents, and shortcircuit currents in power systems. It is suitable for protection and control in substations and industrial and mining distribution systems, as well as places with frequent operations in rural power grids. With the addition of a controller, it can achieve distribution network automation.