... of explosion-proof electromagnetic starter.Main technical parameter:Rated operation voltage: AC50Hz, 380V, 660V, 1140VRated operation current: 250A, 400A, 600A( ... ).The coventional thermal current of main line:250A, 400A, 600ARated voltage of control electric circuit:AC50Hz, 36V, 127V, 220V, 380V. ... .Electrical life: AC360 (104T).Mechanical life: 300 (104T). CKJ5 series low voltage AC vacuum contactor