ZW32-12 model outdoor vacuum circuit device (hereinafter referred to as circuit device) is Rated voltage 12KV, three-phase AC 50Hz outdoor distribution equipment. And Short-circuit current. For the main break, when closing the power system load current, overload current And Short-circuit current. ,And industrial and mining enterprises in the substation for power distribution system for the protection and control purposes, And frequent operation of rural power grid places. The circuit device is small, weight light, anti-condensation, maintenance-free features, can adapt to poor weather condition and dirty environment. Carton packing or according to customer's requirement.