Usage Tips:Package Included: 1 Pc x Switch High Quality: The shell is made of excellent material, waterproof and dustproof. Switch push-button switch HY52 equipment and mechanical device on/off switch - This electric push-button switch Belonging to the safety switch, the device does not turn on after unexpected power off, need to be pressed on the green start button. Can be used with overload protection switch for undervoltage and overload protection, current / voltage: 20/12 A, 125/250 V. Function: Braking function with bipolar disabled . With light for everyday comfort. Can be combined with overload protection switch to achieve undervoltage and overload protection. Scope of application- HY52 4Pins / AC 125 / 250V 20 push button switch / 12A ON-OFF Power Tool Push Button Switches / Industrial electric push button switches suitable for household or similar electrical appliances or equipment, widely used in machine tools, large-scale power tools, garden machinery .