Features Self Resetting: This button switch has self resetting function, which automatically returns to the initial state after pressing the button, making it convenient and fast. 22mm Mounting Hole: This push button switch has 22mm mounting hole size, making it easy and convenient to install on various devices, suitable for more scenarios. Aluminum Alloy: The start stop switch is made of excellent aluminum alloy material, which has good durability and high stability, and can operate for a long time. Safe Operation: The voltage of the self resetting push button switch is AC240V, and the rated insulation voltage is 440V, ensuring safe and reliable operation. 10 Pieces in 1 Set: Including 10pcs self resetting button switches, flat head design, compact and lightweight, easy to install, convenient for use and replacement at any time. Specification: Item Type: Push Button Switch Material: Aluminum Alloy Mounting Hole Size: Approx. 22mm / 0.87in Operating Temperature: -25-55℃ Mechanical Life: 2000,000 Times Electrical Life: 500,000 Times Wiring Method: M3.5 Screw with Square Plate Operation Type: Self Resetting Rated Insulation Voltage: 440V Product Voltage: AC240V Package List:10 x Push Button Switches Package List 10 x Push Button Switches