Description
The Belimo TFRX24-SR is a high-performance spring return modulating damper actuator engineered for reliable, precise control in commercial and industrial HVAC applications. Designed to accept both 2–10 VDC and 4–20 mA modulating input signals, this actuator integrates seamlessly into building automation systems requiring proportional damper positioning and fail-safe operation.
With a 24V AC/DC power supply, the TFRX24-SR offers flexible installation compatibility across a wide range of control panels and BAS platforms. The spring return mechanism ensures the damper returns to a safe, pre-set fail position upon power loss — a critical feature for fire, smoke, and ventilation damper applications.
Key Features
- 24V AC/DC operating voltage for broad system compatibility
- Spring return (fail-safe) operation for reliable damper positioning on power loss
- Modulating control with dual input options: 2–10 VDC and 4–20 mA
- Proportional positioning for precise airflow and ventilation management
- Designed for fire, smoke, and combination fire/smoke damper applications
- Compact, robust Belimo construction for long service life
- Easy field installation and wiring
Specifications
- Brand: Belimo
- Model / SKU: TFRX24-SR
- Supply Voltage: 24V AC/DC
- Control Type: Modulating (Proportional)
- Control Signal: 2–10 VDC / 4–20 mA
- Actuator Type: Spring Return
Applications
- Commercial HVAC damper control
- Fire and smoke damper actuation
- Building automation and energy management systems
- VAV and mixed-air control systems
- Ventilation and air handling units
Trust Belimo’s industry-leading actuator technology to deliver dependable performance in your most demanding HVAC installations. The TFRX24-SR is the go-to choice for contractors and engineers who require fail-safe, modulating damper control with universal signal compatibility.
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