Belimo LF24-SR-S

Belimo LF24-SR-S is a spring-return damper actuator built for precise HVAC control. The unit operates on 24V and delivers up to 35 in-lb (4 Nm) of torque, enabling accurate damper movement across typical applications. It accepts a 2-10 VDC positioning signal, allowing seamless integration with standard control systems. A built-in auxiliary switch provides additional feedback, simplifying integration with building automation and monitoring schemes. With its spring-return action, the LF24-SR-S returns to its default position when power is removed, helping to maintain safe and predictable damper states.

It combines 24V control, 2-10 VDC input, and a built-in auxiliary switch to support straightforward integration with many control schemes. The spring-return design helps ensure safe damper positioning on power loss, making it a reliable choice for mission-critical applications. It also supports long service life in demanding environments.

• Spring-return action returns the damper to its default position when power is removed
• 24V control for standard HVAC control compatibility
• 2-10 VDC positioning input for precise damper positioning
• 35 in-lb (4 Nm) torque supports most damper sizes
• Built-in auxiliary switch for additional feedback and safety signaling