Description
Belimo AFBUP-X1 Universal Voltage Spring Return Damper Actuator
The Belimo AFBUP-X1 is a heavy-duty, spring return damper actuator engineered for dependable On/Off control in commercial and industrial HVAC applications. With a wide universal voltage range of 24–240V AC/DC, this actuator eliminates the need for a dedicated transformer or voltage-specific wiring, simplifying installation and reducing overall system cost. The 180 in-lb torque output makes it well-suited for large dampers and demanding applications where consistent, reliable actuation is critical.
Key Features
- Universal voltage input: 24–240V AC/DC — no step-down transformer required
- On/Off control for straightforward open/close damper operation
- Spring return (SR) fail-safe function returns damper to safe position on power loss
- 180 in-lb (20 Nm) torque output for large or high-resistance dampers
- Compact, rugged housing designed for long service life
- Manual override for easy commissioning and maintenance
- Belimo’s proven direct-coupled design — no crank arm or linkage required
Application Highlights
- Ideal for supply, return, and exhaust air dampers in AHUs and rooftop units
- Suitable for commercial building automation and HVAC zoning systems
- Compatible with a wide range of standard damper shaft sizes
- Spring return action ensures fail-safe damper positioning during power outages
Product Specifications
- Brand: Belimo
- Model / SKU: AFBUP-X1
- Supply Voltage: 24–240V AC/DC (universal)
- Control Type: On/Off
- Actuator Type: Spring Return (SR)
- Torque Output: 180 in-lb
- Mounting: Direct-coupled, no linkage required
Trust Belimo’s industry-leading actuator technology to deliver precise, fail-safe damper control in your next HVAC project. The AFBUP-X1 is backed by Belimo’s commitment to quality and long-term reliability.







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