CJT1 220V-380V air ac modular contactor is suitable for frequency 50HZ,rated insulation voltage up to 380V, rated operation current 10-150A. It is mainly used for making or breaking electric circuits at a long distance and for frequent starting and stopping and controlling AC motors. It is used in combination with thermal relay to compose a magnetic motor starter. The product accords with standard IEC 60947-4-1,GB14048.4