Package includes: 1 pc x Switch. High Quality: The shell is made of excellent material, waterproof and dustproof. 【HY52 Equipment Push Button Switch & Mechanical Device On/Off Switch】 - This electrical push button switch belongs to the safety switch, the device will not turn on after unexpected power failure, the green start button must be pressed. Can be used with an overload protection switch for undervoltage and overload protection, current/voltage: 20/12A, 125/250V. Function: Brake function with bipolar shutdown. With light for daily convenience. Can be combined with an overload protection switch to achieve undervoltage and overload protection. 【Scope of Application】- HY52 4-pin push button switch / AC 125/250V 20/12A Push button switch for power tools ON-OFF / Industrial electrical push button switches suitable for household appliances or similar electrical appliances or equipment, widely used in machine tools, large-scale power tools, garden machinery.