The LiftMaster 02109B is a keyed control station for commercial door operators, built for secure, authorized activation of a door or gate. It is the same device as LiftMaster part 02109, but supplied with a Best-style small-format interchangeable core (SFIC) cylinder to integrate with facilities that standardize on Best key systems. Used as a hardwired, keyed switch, it provides a secure command input to LiftMaster commercial operators to run functions such as open/close or run/stop, depending on how the operator is configured. This makes the 02109B a practical replacement part or upgrade for warehouses, distribution centers, schools, municipal buildings, parking facilities, and other commercial or industrial applications where key-controlled access is required.
As a low-voltage, dry-contact control accessory, the 02109B wires directly to the operator’s external control terminals and is intended for use with LiftMaster commercial door operators that accept hardwired key switch inputs. The included Best SFIC core enables rekeying to match an existing facility keyway through a qualified locksmith. For safety, install the station in line-of-sight to the door and follow UL 325 and local codes, ensuring appropriate entrapment protection is in place. Professional installation is recommended to confirm proper wiring, function assignment, and compliance with site requirements.