This switch features power-off and under-voltage protection functions: 1. Double pole cut-off 2. Brake function with single pole cut-off 3. Both versions can be combined with an overload protection switch to provide under-voltage and overload protection Commonly used in machine tools, large power tools, and garden machinery, this safety switch prevents the device from turning on automatically after an unexpected power outage. The unit must be manually restarted using the green start button. 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 Protection Degree: IP55 Number of Operating Cycles: 5E4 Ambient Temperature: T85/55 Color: Black Material: Plastic Size: 53x27mm Package Contents: 1 x Electromagnetic Push Button Switch Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement allows an error of +/- 1-3cm.