GCK GCL series control center is used for low-voltage distribution system of AC 50Hz, rated voltage 380V as motor control and power compensation for power collector, feed circuit, main control, and lighting. It includes power center (PC) and motor control center (MCC) function. It is divided into horizontal bus area, vertical bus area, functional unit area, cable chamber, neutral grounding bus area, which are separated from each other.  The mechanical interlock of the drawer functional unit and drawer panel is operated by manual mechanical operation. The mechanism of manual operation is adopted the padlock in the position of switch and brakes. The drawer has characters of interchangeability, good flexibility, convenient operation, reliability, and high protection grade.