The LiftMaster APBS1 Single Button Control Station (part number K76-33672) is a wired, momentary push-button wall station designed to control compatible LiftMaster commercial door and gate operators through a single-button input. Each press sends a dry-contact command to the operator to cycle the door or gate in sequence—open, stop, then close—making it a straightforward replacement part for service calls or a clean upgrade when a simple interior control is needed in warehouses, loading docks, parking facilities, and other commercial applications.
Engineered as a low-voltage, normally open control device, the APBS1 connects with two conductors to the operator’s wall-control terminals and requires no external power, simplifying installation and reducing compatibility issues. It is intended for operators that accept a single-button control circuit from LiftMaster and other models that follow the same dry-contact logic. For best practice, mount the station within line of sight of the door or gate, follow the operator’s installation manual and local codes, and use appropriate safety and monitoring devices as required by UL 325 and job specifications. This station is a dependable choice for technicians and facility managers seeking a LiftMaster-branded single-button control for commercial door operators and many gate operators that support a momentary, single-button command.