Belimo LMB24-SR-T Motor Actuator

The Belimo LMB24-SR-T is a high-torque rotary actuator designed for precise control of HVAC dampers and control valves in commercial applications. Engineered for reliability, this unit provides 45 in-lb torque with a proportional 2 to 10 VDC control signal, operating on 24V AC/DC power. Its brushless DC motor ensures consistent performance and longevity by preventing stalls through electronic overload protection across the entire 0 to 95-degree rotation range. The "T" designation signifies the inclusion of a terminal strip, simplifying field wiring for contractors. This model is technically identical to the LMB24-SR-T.1, making it a direct replacement for existing installations. The low power consumption during hold cycles improves overall system efficiency. Designed for easy installation, the Belimo damper actuator features a manual override button and a universal shaft clamp that accommodates most standard shaft dimensions found in direct coupled actuator applications.

Key Benefits

• Precise Modulation: Advanced 2-10VDC feedback allows the Building Management System (BMS) to accurately track actual damper position.
• Simplified Installation: The integrated terminal strip eliminates the need for wire nuts, reducing labor time during field mounting.
• Fail-Safe Reliability: Electronic sensing prevents motor burnout, ensuring the proportional actuator remains operational even if the damper becomes obstructed.
• Quiet Operation: Designed for noise-sensitive environments, maintaining low decibel levels during adjustment cycles.

Common Questions

How do I wire the Belimo LMB24-SR-T for 2-10V control?
Connect the 24V power to terminals 1 and 2, and the control signal to terminal 3. For position feedback, use terminal 4.

Can this actuator replace the LMB24-SR-T.1?
Yes, the Belimo LMB24-SR-T is functionally and physically identical to the .1 variant and serves as a direct drop-in replacement.

What happens if the damper jams?
The brushless DC motor features internal overload protection; it will stop automatically without damaging the gears or motor windings.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.