Belimo AFB24-MFT-X1 Actuator

The Belimo AFB24-MFT-X1 is a high-torque spring return damper actuator designed for reliable fail-safe operation in heavy-duty HVAC systems. Operating on a 24V AC/DC power supply, this 180 in-lb (20 Nm) actuator utilizes Multi-Function Technology (MFT), allowing for precise proportional control and field-customizable settings for control signals (2-10 VDC, 4-20 mA), feedback, and running time. Engineered for damper automation in air handling units and large ventilation systems, the AFB24-MFT-X1 ensures consistent torque delivery across its 95-degree rotation. The integrated brushless DC motor provides long-term performance and accurate positioning without the risk of burnout at end-of-stroke. This modulating actuator features a rugged NEMA 2 (IP54) housing and manual override capability, making it a staple for contractors maintaining large-scale 120V or 24V commercial mechanical systems. Its programmable nature allows it to replace a wide range of legacy fail-safe actuators, streamlining inventory for complex retrofits.

Key Benefits for HVAC Contractors

• Versatile Control: MFT allows field programming for various control signals and feedback signals, reducing the need for multiple SKUs.
• Fail-Safe Reliability: Mechanical spring return ensures dampers close or open during power loss to protect system integrity.
• High Torque Output: Rated at 180 in-lb, making it compatible with large dampers and high-static pressure applications.
• Extended Service Life: Brushless DC motor technology maintains precise positioning without mechanical degradation.
• Simple Installation: Universal clamp design accommodates various shaft sizes, reducing setup time on the job site.

Common Installation and Compatibility Questions

How do I change the control signal on a Belimo AFB24-MFT-X1?
The control signal can be field-adjusted using the Belimo PC Tool or ZTH US handheld tool to match the specific voltage or current requirements of your BAS controller.

Can this actuator be used in outdoor environments?
The AFB24-MFT-X1 features a NEMA 2/IP54 rating; for direct exposure to weather, a protective NEMA 4X weather shield is required.

What is the typical running time for this proportional actuator?
The standard motor run time is 150 seconds, though this can be programmed via MFT to meet specific sequence-of-operation needs.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.