As the working frequency of AC 50Hz, the rated working voltage is 380 (400) V~660V, a low-voltage complete set of power distribution devices used for power distribution and motor centralized control in the power generation and power supply system with a rated current force of 4000A and below. On the basis of maintaining the electrical performance higher than that of similar products, the GCK low-voltage drawer switchgear has increased the capacity and mechanical strength, and has the characteristics of advanced structure, beautiful appearance, high protection level, safety and reliability, convenient maintenance, strong versatility, flexible configuration and so on.