BERNSTEIN 188‑A1Z‑KS is a German‑brand elevator safety limit switch, primarily used for car door and landing door safety circuit monitoring. This switch features a pull‑ring actuator that enables signal switching within the door lock circuit. With an IP54 protection rating and high-strength plastic housing, it offers excellent shock resistance and dust-proof performance. Compliant with elevator safety component standards, this spare part is widely compatible with multiple elevator models. In the event of switch failure, the door lock circuit will break, preventing normal elevator operation.
| Brand | Sulab |
|---|---|
| Description | Elevator sensor |
| Model | 188-A1Z KS |
| MOQ | 1PC |
| Transportation | TNT, UPS, DHL, Fedex, Air, Sea |
| Packages | Carton, Wooden case, Pallet etc |
| Delivery Time | Normally 2-3 working days after payment |
| Warranty | One year |
| Payment Method | Company Bank, Western union, Paypal etc |
This limit switch includes a separate metal pull‑ring assembly for mechanical contact switching. It boasts a long mechanical service life and is designed to withstand high-frequency repeated triggering typical of elevator door mechanisms.
During replacement, wire terminals must be thoroughly inspected. After installation, manually test the pull‑ring trigger and reset function to verify contact logic, followed by complete door-opening and closing tests. Secure mounting is essential to prevent displacement caused by vibration, thereby avoiding poor connections and false alarms while ensuring safe and stable operation of the elevator door circuit.