Description
Belimo TR24-SR Non-Spring Return Proportional Damper Actuator
The Belimo TR24-SR is a non-spring return, proportional (modulating) damper actuator designed for precise control in commercial and industrial HVAC applications. Operating on 24V AC or 24V DC power, this actuator delivers reliable, accurate positioning for damper systems where continuous modulating control is required.
Key Features
- Non-spring return design — maintains last position on power loss
- Proportional (0–10 VDC) control signal for precise modulating operation
- Dual voltage compatibility: 24V AC or 24V DC
- Compact, robust housing built for long-term commercial HVAC service
- Easy direct-coupled mounting — no crank arm or linkage required
- Manual override for commissioning and service convenience
- Suitable for use with round and rectangular dampers
Application
The TR24-SR is ideal for VAV systems, air handling units, economizers, and other HVAC damper control applications requiring smooth, stepless modulation. Its proportional control capability makes it well-suited for building automation systems (BAS) and energy management applications where precise airflow regulation is critical.
Why Choose Belimo
Belimo is a globally recognized leader in actuator, valve, and sensor solutions for HVAC systems. The TR24-SR reflects Belimo’s commitment to quality, reliability, and ease of installation — trusted by mechanical contractors and building automation professionals worldwide.
Specifications
- Brand: Belimo
- Model: TR24-SR
- Control Type: Proportional (modulating)
- Return Type: Non-spring return
- Supply Voltage: 24V AC / 24V DC
- Application: HVAC damper control







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