Product Name: Push Button Switch;Action Type: Lacthing;Contact Type: 1 NO + 1 NC;Poles: DPST Ui: 660V;Ith: 10A;Terminals Quanlity: 4 Pins Button Diameter: 40mm/ 1.6";Mount Hole Diameter: 22mm / 7/8";Fit Panel Thickness(adjustable): 6mm / 15/64"(max.) Size: 60 x 70mm/ 2.4" x 2.8" (Max.D*H);Cap Lamp: Red;Material: Plastic,Metal Color: As Picture Shown;Weight: 46g; 4 terminals, 22mm mounting hole, 1NO+1NC contact type, red mushroom emergency stop latching push button switch with yellow cap. Used widely to control the electromagnetic , contactor, relay and other automatic control electric circuits. Package Contents: 1 x Push Button Switch Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.