3 pole, no contact Type, widely use for long-distance connecting and breaking circuit, frequent start and control AC electric motors. Contacts can also be assembled into a modular auxiliary contact Group, air delayer, mechanical interlocking institutions and other accessories. Compatible with IEC 60947. 4, NFC 63110, VDE0660, GB14048. 4 standard. Low power consumption, light weight, long service life, reliable. The rated voltage of coil is AC 220V, please pay attention to the voltage to make sure the item can work successfully.