Description
The Belimo TFB24-3 is a compact, direct-coupled damper actuator engineered for dependable performance in commercial and light-commercial HVAC applications. Featuring a spring return mechanism, this actuator provides fail-safe operation — automatically returning the damper to its preset position upon loss of power, making it an ideal choice for critical ventilation and air-handling systems.
Key Features
- Spring return design ensures automatic fail-safe damper positioning on power loss
- 22 in-lb (2.5 Nm) torque output — suitable for a wide range of damper sizes
- Floating (3-point) control signal for precise, incremental damper positioning
- Compatible with both 24Vac and 24Vdc power supplies for installation flexibility
- Direct-coupled mounting — no crank arm or linkage required
- Compact, low-profile housing for easy installation in tight spaces
- Manual override function allows damper positioning without power
Technical Specifications
- Model: TFB24-3
- Torque: 22 in-lb
- Control Type: Floating (3-point)
- Power Supply: 24Vac / 24Vdc
- Operation: Spring Return (Fail-Safe)
- Mounting: Direct-coupled
Applications
- HVAC air handling units (AHUs)
- Variable air volume (VAV) systems
- Ventilation and exhaust damper control
- Building automation and energy management systems
- Commercial and light-commercial HVAC installations
Belimo is a globally recognized leader in actuator, valve, and sensor technology for HVAC systems. The TFB24-3 reflects Belimo’s commitment to quality, reliability, and ease of installation — making it a trusted choice for HVAC contractors and building automation professionals alike.
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