This switch have the following function that derived from power-off and under voltage protection:1. Double Pole cut off   2. Brake function with one pole cut off   3. These two versions can be combined with overload protection switch to achieve under voltage and overload protection   Widely used in machine tools, large-scale power tools, garden machinery above, belonging to the safety switch, the device will not turn on after power off unexpectedly, need to press the green start button will turn on.   100% Brand New and high quality.   Product name: Electromagnetic Push button switch   Model: KJD17   Rated Voltage:AC250V   Rated Current: 18A(AC-1) 15A(AC-3)   Coil Voltage: 220-240V   Rated Frequency: 50/60Hz   Pin quantity: 5 Pins   Degree Protection: IP55   Number of operating Cycles: 5E4   Ambient temperature: T85/55   colour:black   Material:plastic   size:53x27mm   Package Contents:   1 x Electromagnetic Push button switch   Only the above package content, other products are not included.   Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.