The MMTC PBS-3 is a universal, hardwired three-button wall station designed for commercial garage door openers and gate operators. It provides dedicated OPEN, CLOSE, and STOP controls for dependable, everyday operation in warehouses, service bays, and other commercial/industrial applications. The station mounts indoors near the doorway and is used by pressing and holding the appropriate button to command the operator; the STOP control immediately interrupts the command circuit for added control over door movement.
This three-button station uses dry-contact switching for broad compatibility with most commercial operators that accept a 3-button wall control. OPEN and CLOSE are momentary contacts, while STOP is typically a normally closed circuit that breaks the control line when pressed. The PBS-3 connects to the operator’s control terminals with low-voltage wiring (commonly 24V control circuits); no programming is required and wiring is polarity independent. It’s a straightforward replacement part or upgrade for systems that specify an OPEN/CLOSE/STOP wall control, making it suitable for universal use across many brands that support three-button, dry-contact inputs. For safe operation, follow the operator manufacturer’s wiring diagram, ensure entrapment protection devices are installed and functional, and comply with any constant-pressure-to-close requirements in your jurisdiction.