ZJW100/200-03 type the 3 normally off DC contactors, the main contacts are suitable for AC 380V, 220V, 110V and DC 6V-110V and soon. It could use for the pump motors and other electronic vehicles, also apply to communication base station power supply, EPS power supply, uninterruptible power supply and other industrial power supply. It solved the unwork problem which cased by the AC contactors lack of voltage, the characteristic is start and off synchronization, is an energy-saving products. Stable performance, reliable quality.