Its short call is switch cabinet and is suitable for the three-phase exchange 50HZ 35KV single-bus and the single-bus power system. And it mainly used in the distribution power system of the power plants, substation, industrial and mining enterprises, skyscraper to receive and distribute the power, and also has the function of monitoring, controlling and protection of the circuit. It meets the standard of EC60298, GB3906, and DL404 and has the perfected “five protection” functions. It is with the away ZN85-40.5 (3AV3) type of vacuum breaker or SF type of SP series sulfur breaker, and applies the thermal insulation material and the epoxy coating technology, and thus optimizes the electrode shape, and the structure is compacted, reduces the area. The cubicle of the switch cabinet applies the high-quality aluminum zinc plate deposited by the NC after the forming of the processing through high strength bolts nut and rivet nut connecting form, component surface applies the mining spray or galvanized process. The compartment of the switch cabinet applies the metal separation sheet and has the unique pressure channel.