travelswitch
nounUK /ˈtrævəl swɪtʃ/
US /ˈtrævəl swɪtʃ/
A travel switch is a small switch that turns something on or off when a moving part reaches a certain spot.
The travel switch stopped the elevator door when it touched the frame.
OTHER MEANINGS
2. A switch designed to be operated by the movement of a traveling part of a machine.
The conveyor belt uses a travel switch to stop when the cart arrives.
3. A device that cuts power when a moving object goes too far.
The crane's travel switch prevented the hook from hitting the top.
4. A switch triggered by the position of a moving component in an electrical system.
Technicians checked the travel switch after the gate failed to open.