QJX3 Star-Delta Starter Control  Cabinet mainly be applicable to the circuit of voltage 380V, AC 50/60Hz. It is used for controlling the 3-phase squirrel-close type induction motor with a power of less than 45kW on AC-3. The start up mode is automatically changed from "Y" to "△". It can protect the motor from overload, open phase, and short circuit. It is widely used in compressors, fans, water pumps and other industrial equipment.