... certificate:CCC, CE,EU, TUV & ROHS 3.Rated voltage:144V,DC current:400A 1.ApplicationGSZ1 series D.C. contactor is mainly used ... voltage to 48V or 144 V,operating current respective to 100A,200A,400A DC circuit,for making orbreaking the circuit .Product is ... electric car,low voltage converter,engineering machinery and use of DC power supply situation.2.Structure featureThe action mechanism of direct ...