Belimo ARB24-MFT Actuator

The Belimo ARB24-MFT Actuator is a high-torque non-spring return actuator designed for the precise control of ball valves in HVAC systems. Delivering 180 in-lb of torque, this 24V damper actuator utilizes Multi-Function Technology (MFT) to provide field-adjustable control signals, including 4-20mA proportional control, PWM, floating point, and on/off configurations. As a direct replacement for the Belimo ARX24-MFT, it ensures seamless integration into existing HVAC automation architectures. The brushless DC motor is electronically protected against overloading, eliminating the need for limit switches and increasing long-term reliability in demanding mechanical room applications. Its NEMA 2 housing and manual override button allow for simplified installation and commissioning for commercial contractors managing complex hydronic valve control sequences. By leveraging MFT, technicians can customize parameters such as running time and feedback signals to meet specific site requirements, ensuring optimal performance across varied modulating actuator installations.

Key Benefits:

• Versatile Control: Multi-Function Technology allows for field-selectable input signals including 2-10 VDC, 4-20mA, and pulse width modulation.
• High Torque Output: Provides a robust 180 in-lb (20 Nm) for reliable operation of larger ball valves.
• Universal Compatibility: Serves as the primary replacement for ARX24-MFT and other legacy series actuators.
• Brushless DC Motor: Enhanced longevity and precision without the mechanical wear associated with traditional brushed motors.
• Easy Commissioning: Features a manual override zip cord and clear position indication for rapid system testing.

Common Questions:

How do I configure the ARB24-MFT for a 4-20mA signal?
The unit can be customized using the Belimo PC Tool or ZTH US handheld tool to set the 500 Ohm impedance required for 4-20mA input sensitivity.

Can this actuator be used in failsafe applications?
No, the ARB24-MFT is a non-spring return actuator; for applications requiring a safety return position upon power loss, a spring-return model should be specified.

Is the ARB24-MFT compatible with both AC and DC power?
Yes, this proportional valve actuator operates on both 24Vac and 24Vdc power supplies, providing flexibility for different controller outputs.

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.