The NCJX2 series AC contactors from Fly Dragon Electric are suitable for 50/60Hz, rated insulation voltage up to 1000V, rated operation current 9~330A under AC-3 duty. They are mainly used for making/breaking electric circuits at a long distance & for frequent starting & controlling A.C. Motors. The contactors are used in combination with thermal relay to compose a magnetic motor starter.The products accord with as IEC60947-4-1.