The Top Choice for Smart and Reliable Residential Gate Automation The LiftMaster RSL12UL is a high-performance DC-powered slide gate operator designed for Class I and II vehicular gates in residential and light commercial settings. Built with integrated battery backup, UL325 compliance, and MyQ® smart control technology, the RSL12UL ensures continuous, safe operation—even during power outages. Its compact, low-profile chassis and wireless dual-gate capability eliminate the need for trenching across driveways, making it ideal for aesthetic or difficult installations. With a heavy-duty steel frame, IP-rated weather protection, and support for solar power, the RSL12UL delivers rugged performance across diverse environmental conditions. Key Features Battery backup included - ensures operation during power loss Smartphone control via MyQ® - monitor and manage access remotely Comes with a Safety Edge: The RSL12UL includes a safety edge to prevent accidents and enhance safety. To fully optimize this feature, consider adding the LMWEKITU wireless kit for seamless and safe operation. UL325 & UL991 compliant - meets all entrapment protection standards POSILOCK® system - automatically secures gate against forced entry Rated for gates up to 25 ft or 800 lbs Fire department override - opens gate during full power failure Diagnostic LED display - streamlines setup and troubleshooting Solar-ready - optional solar kit and 33Ah battery support Built-in 3-channel Security+ 2.0® receiver - up to 50 remotes standard Technical Specifications Model: RSL12UL Gate Capacity: Up to 25 ft or 800 lbs Power Supply: 120VAC input / 12VDC system Battery Backup: Included 12V 7Ah Motor Type: 1/8 HP 12VDC with soft start/stop Max Speed: 10–12 in/sec Cycles/Day: Up to 120 Duty Cycle: Continuous Entrapment Protection Inputs: 3 onboard + 3 via optional expansion Weather Rating: -4°F to 140°F standard; -40°F to 140°F with heater Construction: ¼" powder-coated steel chassis, UV-resistant cover UL Class: I, II, III, IV Chain: #41 black oxide (25 ft included) Compatible Accessories LiftMaster LMWEKITU Wireless Edge Kit: Essential for enhancing the wireless safety edge feature. LiftMaster 811LMX Remote Controls: For convenient and secure gate operation. LiftMaster 828LM Internet Gateway: Enables smartphone control of the RSL12UL through the MyQ® app. LiftMaster Expansion Board: For expanding the functionality of your gate opener. LiftMaster KPW5 Wireless Keypad: Adds convenience and security to your automatic gate system LiftMaster Solar Panels: Compatible for solar power setups, providing sustainable energy solutions. Conclusion The LiftMaster RSL12UL is engineered for secure, uninterrupted gate automation in residential and light commercial environments. With its battery backup, smart connectivity, and solar compatibility, it offers long-term reliability and code-compliant safety for today’s perimeter protection needs. Cut Sheet Installation / User Manual