GBC-40.5 hand-car high-voltage switch cabinet is the unit distribution equipment of the three-phase exchange current 50(-) 2 single busbar and are equipped with the ZN2-40.5 and ZN23-40.5 vacuum breaker. It has the features of small size, light and maintenance-easy. It applies the modular structure and the hand can be equipped with all type of operation structure. It is widely used in the power plant, substation and industrial and mining enterprises.