Overview
The Belimo TFB24-SR is a compact spring return damper actuator engineered for modulating proportional control of dampers in commercial HVAC applications.
Features
- Modulating 2 to 10 VDC control signal for accurate airflow regulation
- Mechanical spring return fail-safe mechanism provides reliable emergency positioning
- Low power consumption during operation and holding states
- Direct-coupled mounting to damper shafts with universal clamp
Specifications
- Torque: 22 in-lb [2.5 Nm]
- Nominal Voltage: AC/DC 24 V
- Control Type: Modulating (2 to 10 VDC)
- Actuator Type: Spring Return
- Damper Area: Up to 5.5 sq ft
Applications
- Proportional airflow control in air handling units and VAV systems
- Fail-safe modulation in commercial ventilation and ductwork systems





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