Product Name: Push Button Switch Oeperation Type: Latching Light Voltage: no light include Contact Type: NO Material: Plastic & Metal Package Content: 5 x Push button Switch Mounting Hole Dia.: 12mm / 0.47" Red Button Diameter: 9mm/0.35" Terminals Quantity: 2 Rated voltage: 125V/250V 1A/3A Toltal Size:29.4 x 14.3 x14.3mm 1.Button momentary when pressed, automatic reset 2.Used widely to control the electromagnetic starter, contactor, relay and other automatic control electric circuits. 3.100% brand new and , good replacement for your old or broken ones.