Description
The Belimo FSAF24A is a heavy-duty, spring-return damper actuator engineered for reliable ON/OFF fail-safe control in commercial and industrial HVAC applications. Delivering 180 in-lb of torque at 24V, this actuator is purpose-built to handle large dampers in air handling units, ventilation systems, and building automation applications where dependable fail-safe operation is critical.
Key Features
- 24V AC/DC operating voltage for broad system compatibility
- 180 in-lb (20 Nm) torque output — ideal for large or high-static-pressure dampers
- Spring return (SR) fail-safe mechanism ensures the damper returns to its safe position upon power loss
- ON/OFF control signal for straightforward open/close damper operation
- Direct-coupled design eliminates the need for crank arms and linkages, reducing installation time
- Compact, rugged housing suitable for demanding commercial environments
- Manual override for commissioning and maintenance convenience
- Auxiliary switch included for end-position feedback to the building automation system
Application Benefits
- Ideal for use on outside air, exhaust, return, and mixed-air dampers
- Compatible with a wide range of damper brands and configurations
- Spring return action provides positive fail-safe positioning — damper closes (or opens) automatically on power failure
- Simplifies wiring with standard 24V control circuits common in commercial BAS/DDC systems
- Reduces maintenance overhead with Belimo’s proven, long-life actuator technology
Technical Specifications
- Model: FSAF24A
- Brand: Belimo
- Supply Voltage: 24V AC/DC
- Control: ON/OFF
- Torque: 180 in-lb
- Actuator Type: Spring Return (Fail-Safe)
- Mounting: Direct-couple, shaft-clamp design
Trust Belimo’s industry-leading actuator technology to deliver consistent, fail-safe performance installation after installation. The FSAF24A is backed by Belimo’s reputation for quality and long service life, making it a go-to choice for mechanical contractors and building automation professionals alike.
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