CJX1series AC contactors are suitable for frequency 50/60Hz, rated insulation voltage up to 1000V,rated operation current 9~475A under AC-3 duty. Itis mainly used for making/breaking electric circuits at a long distance& for frequent starting/stoppping & with thermal relay to compose a magnetic motor starter, so. The products acoords with such standards as IEC60947-4-4 & GB14048.4.