Because the switch's actuator is in direct physical contact with moving objects, limit switches are designed for easy servicing, especially the replacement of the actuator and internal switch.

Limit switch failures are normally mechanical in nature. ... Another straightforward means of controlling overtravel is with a physical stop on the switch. Actuator position: ...

Simply push the button-switch once to extend and once again to retract the linear actuator. You can position the switch at the required distance from the actuator using additional twin-cable. The ...