Belimo AFRX24-MFT Actuator

The Belimo AFRX24-MFT Actuator is a heavy-duty spring return valve actuator engineered for precise control in demanding HVACR applications. Delivering 180 in-lb torque, this unit is designed to handle large damper control and characterized control valve setups where fail-safe reliability is non-negotiable. Utilizing Multi-Function Technology (MFT), the actuator provides versatile control options including 4-20mA modulating signals, **floating point**, and **on/off** functionality. It is uniquely configurable for various input signals: use a 500 Ohm resistor for 4-20mA or a 1500 Ohm for PWM control. Operating on 24VAC/DC, it ensures constant torque to the load even during power fluctuations. The rugged NEMA 2 housing and reversible fail-safe direction (CW/CCW) make it a standard for mechanical contractors seeking a fail-safe HVAC actuator with a 95-degree rotation and integrated manual override. This 24V proportional actuator is a direct-coupled solution for maintaining critical airflow or fluid control in complex building automation systems.

• Fail-Safe Security: True mechanical spring return ensures the system returns to a safe position during power loss.
• MFT Flexibility: Programmable parameters allow for customized control signals (2-10VDC, 4-20mA, PWM, or floating point).
• High Torque Output: Provides 180 in-lb of constant torque suitable for 1-1/4" to 3" valve assemblies.
• Technician Friendly: Includes a 5mm hex crank for manual override and a 3ft appliance cable for straightforward installation.
• Efficient Performance: Low power consumption with only 7.5W running and 3W holding.

Can I use this for 4-20mA control signals?
Yes, by using a 500 Ohm resistor, the actuator converts the 4-20mA signal to a 2-10VDC input for seamless modulation.

Is the fail-safe direction adjustable?
The fail-safe rotation is reversible by simply flipping the actuator over (clockwise or counter-clockwise mounting).

What is the typical running time for this actuator?
The motor has a default running time of 150 seconds for 90 degrees, while the spring return fail-safe operates in less than 20 seconds.

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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.