... AssembleΦ22mm, Φ25mm mounting diameterChoice of Plastic or Metallic BezelsColour: RedPlease indicate contact ... of pushbutton switch, extended push button, illuminated push button, maintained push button, Mushroom push button, emergency stop button, selector switch, key switch, dual push button, and ... LA115 series push button switches. 3. ApplicationUsed to either close or open an electrical circuit. ...