Description
The Belimo AFX24-S-N4 is a heavy-duty, spring-return damper actuator engineered for reliable ON/OFF control in commercial and industrial HVAC applications. Rated at 180 in-lb of torque, this actuator delivers the muscle needed to drive large dampers with precision and consistency. Its 24V power supply compatibility makes it easy to integrate into standard building automation and control systems, while the NEMA 4 enclosure rating ensures dependable performance in wet, dusty, or wash-down environments.
Built on Belimo’s trusted AFX-series platform, the AFX24-S-N4 features a self-centering shaft clamp for quick installation on round or square damper shafts, and a manual override for convenient commissioning and servicing. The spring-return function provides fail-safe operation, automatically returning the damper to its spring position upon loss of power — a critical safety feature for smoke control and ventilation systems.
Key Features
- 180 in-lb torque output — suitable for large commercial damper applications
- 24V AC/DC operating voltage for broad system compatibility
- ON/OFF control signal for straightforward open/close operation
- Spring-return fail-safe mechanism for reliable power-loss response
- NEMA 4 enclosure rating — protected against splashing water and dust ingress
- Self-centering, universal shaft clamp fits round and square shafts
- Manual override for easy commissioning and maintenance
- Compact, rugged housing designed for long service life
Specifications
- Model: AFX24-S-N4
- Brand: Belimo
- Voltage: 24V AC/DC
- Control: ON/OFF
- Torque: 180 in-lb
- Enclosure Rating: NEMA 4
- Operation: Spring Return
Applications
- Commercial HVAC air handling units
- Ventilation and exhaust damper control
- Outdoor air and mixed-air dampers
- Wet or washdown environments requiring NEMA 4 protection
- Building automation and energy management systems
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