Belimo AFRX24-MFT-S Spring Return Valve Actuator 180 in-lb 24V

The Belimo AFRX24-MFT-S is a configurable spring return valve actuator designed for precise control of HVAC hot and chilled water applications. This versatile actuator delivers 180 inch-pounds of torque with AC/DC 24V operation, making it ideal for air handling units, heating and cooling coils, fan coil units, unit ventilators, VAV box reheat coils, and bypass loops.

Key Features:

• Multi-Function Technology (MFT) programmable control with 2-10 VDC default signal
• Spring return fail-safe operation with reversible rotation (clockwise/counterclockwise)
• Two built-in auxiliary switches (2x SPDT, 3A at 250V) for end position indication, interlock control, and fan control
• 180 inch-pounds (20 Nm) torque output with 90-degree angle of rotation
• Running time: 150 seconds default (variable 70-220 seconds), fail-safe return in under 20 seconds
• Power consumption: 7.5W running, 3W holding
• IP54/NEMA 2 protection rating for reliable performance
• Compatible with 500 ohm for 4-20mA control signals and 1500 ohm for PWM signals
• Manual override with 5mm hex crank (3/16" Allen wrench)
• Direct mount design for retrofit and new installations

This actuator is part of Belimo's RetroFIT+ series, offering standardization benefits with programmable control inputs and feedback signals. Suitable for use in variable or constant flow hydronic systems, the AFRX24-MFT-S provides dependable, precise modulating control for demanding building automation applications.