LX-21 Elevator Limit Switch with Normally Open Normally Close Function and Over Speed Protection for Mechanical Reliable Safety

Lift Car Top Limit Switch LX-21 Normally Open Normally Close Switch Over Speed Protection  Elevator Spare Parts

Functions of LX-21 Elevator Limit Switch
Anti-Collision & Anti-Overrun ProtectionPrevents elevator from over-top (running too high) and bottoming (running too low) when control system fails.
Final Safety Cut-OffActs as the last safety protection after deceleration switch and limit switch fail.
Safety Circuit InterruptionWhen triggered, it cuts off the safety circuit, forces the contactor to release and brake to lock instantly.
Upper & Lower Limit ControlInstalled at top/bottom of hoistway to stop car at extreme positions.
Mechanical Reliable ProtectionCompletely mechanical structure, works even when electricity or PCB fails.
Fault MonitoringIf damaged or not reset, elevator cannot run and will show safety fault.