The low-voltage distribution cabinet is applied in the control and distribution system of AC 50/60Hz, with a rated voltage of 400V and rated current up to 3150A. It is mainly used for power transformation, distribution, and control of power equipment, lighting, and distribution equipment. It has the characteristics of high breaking capacity, good dynamic performance, high thermal stability, flexible electric layout, simple combination, strong scalability, novel structural design, and a high protection level.