The LiftMaster 02103L Control Station 3-Button w/ MAS is a hardwired wall-mounted control designed for commercial and industrial LiftMaster operators that accept a dedicated open/close/stop station. It provides clearly labeled Open, Close, and Stop functions for sectional doors, rolling steel doors, and other commercial door applications where constant-pressure control and supervised operation are required. The MAS designation is the manufacturer’s variant of this three-button station, intended for enhanced stop-control behavior within LiftMaster’s commercial control logic (refer to the specific operator manual for details). It’s an ideal replacement part or upgrade for facilities needing a dependable, operator-compatible station for day-to-day operation.
This control station uses the operator’s low-voltage control circuit and provides dry-contact switching—no separate power supply is typically required. Installation is straightforward: mount the station in a convenient location with clear line of sight to the door and wire to the operator’s terminal strip per the operator’s wiring diagram, ensuring the Stop circuit is correctly placed in series and the Open/Close commands land on the appropriate inputs. Compatible with many LiftMaster commercial jackshaft, trolley, and hoist operators that support a 3-button control station, it suits warehouses, loading docks, service bays, and similar commercial environments. For safety and compliance with UL 325, ensure entrapment protection devices are correctly installed and tested, and use constant-pressure to close where required by code or by the operator’s configuration. No programming is usually necessary; functionality is established by proper wiring and operator settings.