Liftmaster HTRNB Heater Kit For AC Gate Operators

Cold-Weather Heater Kit for LiftMaster Gate Operators

The LiftMaster HTRNB is a UL-listed heater accessory built to protect commercial AC and DC gate operators in subzero conditions. Designed for mounting directly to the operator frame, it safeguards control boards and components down to -40°F. This kit is compatible with multiple industrial-grade LiftMaster slide and swing gate models and includes a factory-set thermostat, wiring accessories, and mounting hardware.

Key Features

• Extreme cold protection: Rated to -40°F for harsh winter environments
• Voltage range: Supports 110–250 VAC single- or three-phase input
• Thermostat included: Adjustable range between 45°F and 60°F
• Frame mounting only: Not compatible with battery bracket installations
• Complete kit: Includes heater, bracket, thermostat, clips, and hardware
• Operator safety: Allow 15-minute cooldown before servicing
• UL tested: Meets LiftMaster OEM quality and reliability standards
• Compatible models: Works with SL585U, SL595U, SL585UL, CSW200U, SL3000U

Technical Specifications

• Model: HTRNB
• Temperature Range: -40°F minimum operating temperature
• Thermostat Setting: Adjustable 45°F–60°F
• Voltage Input: 110–250 VAC
• Mounting: Direct-to-frame; not compatible with battery brackets
• Kit Includes: Heater, thermostat, heater bracket, 10-32 x 3/8" screws (2), wire nuts (2), watertight connector, wire clips (4)
• Safety Notes: Disconnect power before installation; allow heater to cool before servicing

Conclusion

The HTRNB heater kit is a factory-tested, UL-listed cold-weather accessory engineered to safeguard gate operator electronics in freezing conditions. With universal AC voltage input and robust installation components, it is a trusted choice for securing high-traffic commercial gate systems in harsh climates. Elite supports full integration across all compatible LiftMaster operators.