This is red 16mm mounting diameter reset (ON) - OFF round push button switch, the red actuator button is a switch commonly applied to control trigger in certain devices, it is activated when pressed down, the 16mm red two pin push button switch is often used as an industrial electronic button, that with the working function of an electrical switch.

The PB02 series push button switch has two contacts, it is a panel mount pushbutton switch whenever the button is pressed automatically activates before performing the reverse function. Because of these features, PB02 series 16mm Red Momentary Push Button Switch Round Raised Button is used widely to control the electromagnetic starter, contactor, relay and other automatic control electric circuits.