Item Name : Emergency Stop Switch to stop and lock, twist to reset, 2 screw terminals, 1 NC contact type, mushroom emergency stop button switch. The switches are structured compactly and operated quickly and gently. Can be widely used to control the electromagnetic , contactor, relay and other automatic control electric circuits. Action Type : Latching Contact Type : 1 NC Ith : 10A;Ui : 600V Uimp : 6KV AC 15 : 240V 3A Button Diameter : 40mm/1.6" Mount Hole Diameter : 2.2cm / 0.87"(7/8") Fit Panel Thickness(Adjustable) : Max 8.5mm / 0.3" Size : 39 x 29 x 73MM/ 1.5" x 1.1" x 2.9"(L*W*H) Material : Plastic and Metal Main Color : Red, Black Net Weight : 98g Package Content : 1 x Emergency Stop Switch Note:Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.