... certificate:CCC, CE,EU, TUV & ROHS 3.Rated voltage:144V,DC current:400A 1.ApplicationGSZ1 series D.C. contactor is mainly used ... for DC operating voltage to 48V or 144 V,operating current respective to 100A,200A,400A DC circuit,for making ... orbreaking the circuit .Product is mainly used for control electric car,low voltage converter,engineering ...