LiftMaster SN1150040 MPB Auxiliary Relay Module

Extend control and monitoring capabilities of your gate system with the LiftMaster MPB Auxiliary Relay Module. The SN1150040 auxiliary relay module provides additional dry-contact outputs and low-voltage control signaling to trigger lights, alarms, gate sensors or CCTV recorders — enabling seamless integration with access control, surveillance and security monitoring architectures. By centralizing event signaling, the module improves operational visibility and shortens troubleshooting time for facility managers and installers.

Designed for compatibility with LiftMaster gate operators, the MPB module is a cost-effective way to expand I/O and add safety interlocks or remote notifications without replacing the primary operator. Its low-voltage interface minimizes wiring complexity and protects the operator’s control logic while supporting common alarm and access control connections. Whether you need to activate CCTV recording on entry events, drive auxiliary alarms, or link additional safety devices, the SN1150040 streamlines integration and enhances site security.

Specify LiftMaster SN1150040 for your next gate systems upgrade to improve monitoring, diagnostics and response — contact your distributor or installer to order and deploy this auxiliary relay module.

• Expands gate operator control by adding auxiliary dry-contact relay outputs for lights, alarms and sensors
• Simplifies integration with access control and surveillance systems for improved security monitoring
• Low-voltage interface reduces wiring complexity and protects operator logic while enabling reliable remote signaling
• Cost-effective way to add safety interlocks and event-triggered actions without replacing the main operator
• Clearly identified LiftMaster part SN1150040 for fast procurement and professional installation