Description
The Belimo TFRB24-SR-S is a 24V AC/DC spring return damper actuator engineered for precise modulating control in commercial and industrial HVAC applications. Featuring a 2–10 VDC proportional control signal, this actuator delivers accurate positioning for variable air volume (VAV) systems, air handling units, and other damper control applications where reliable fail-safe operation is essential.
The spring return mechanism ensures the actuator automatically returns to its fail-safe position upon loss of power or control signal, providing a critical layer of protection for building occupants and HVAC equipment. The integrated auxiliary switch provides end-position feedback to building automation systems, enabling status monitoring and system interlock functions.
Designed and manufactured by Belimo — a global leader in actuator, valve, and sensor technology — the TFRB24-SR-S is built for long service life with minimal maintenance requirements.
Key Features
- 24V AC/DC power supply for broad system compatibility
- 2–10 VDC proportional modulating control signal
- Spring return (S/R) fail-safe operation
- Integrated auxiliary switch for end-position feedback and system interlocks
- Suitable for VAV boxes, air handling units, and commercial damper applications
- Compact, robust housing for easy installation and long-term reliability
- Designed for compatibility with standard Belimo damper shaft sizes
Typical Applications
- Variable air volume (VAV) systems
- Air handling units (AHUs)
- Commercial and industrial HVAC damper control
- Building automation and energy management systems
Why Choose Belimo?
Belimo is a globally recognized leader in HVAC actuation technology, known for precision engineering, energy efficiency, and product durability. The TFRB24-SR-S continues this tradition, offering contractors and building engineers a dependable solution for demanding damper control requirements.
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