The LiftMaster 50800 Treadle Kit (Electric, Model RBMA, 5 ft) is an OEM vehicle-activated switch assembly designed to trigger compatible LiftMaster commercial door or gate operators when a vehicle drives over the treadle. Commonly used for car wash bay doors, service centers, warehouses, and industrial entries where an in-ground loop is impractical, this electric treadle provides a dependable, on-the-ground activation method to initiate an open or cycle command. The 5 ft actuation section gives drivers a generous contact area, helping ensure consistent detection across typical approach paths.
This replacement/upgrade kit interfaces with operator control terminals that accept an external activation input, enabling straightforward integration with many LiftMaster commercial door operators and select gate operators; always confirm compatibility with your control board documentation before installation. Mount the treadle on a flat, stable surface along the vehicle approach, route the cable to the operator enclosure, and follow the manufacturer’s wiring instructions for the activation input. Use this device as a convenience/activation control only; it does not replace required entrapment protection. For best results in commercial or industrial applications, pair the treadle activation with UL 325-compliant safety devices such as photo-eyes or monitored edges and observe all local codes and operator programming guidelines.