Description
The Belimo ARB24-MFT is a heavy-duty, non-spring return rotary actuator engineered for demanding HVAC damper and valve control applications. Featuring Belimo’s Multi-Function Technology (MFT), this actuator offers exceptional versatility by supporting multiple control signal types in a single unit — making it an ideal choice for building automation systems, VAV applications, and commercial HVAC installations.
Control Signal Flexibility
- 500 Ohm input impedance for 4–20 mA analog control
- 1,500 Ohm input impedance for PWM (pulse-width modulation) control
- Floating point (tri-state) control
- On/Off control
Power & Torque Specifications
- Supply voltage: 24 Vac / 24 Vdc
- Output torque: 180 in-lb (20 Nm)
- Non-spring return design for positive positioning
Key Features
- Multi-Function Technology (MFT) — field-selectable control modes via DIP switches
- Non-spring return operation for reliable, power-maintained positioning
- Suitable for use with dampers and rotary valves in commercial HVAC systems
- Compact, robust housing designed for long service life
- Easy field wiring and commissioning
Typical Applications
- Air handling unit (AHU) damper control
- VAV box actuator replacement and upgrades
- Building automation and energy management systems
- Commercial HVAC zoning and economizer control
The ARB24-MFT’s support for 4–20 mA, PWM, floating point, and On/Off signals eliminates the need for multiple actuator SKUs across different control architectures. With 180 in-lb of torque and dual-voltage compatibility (24 Vac and 24 Vdc), this Belimo actuator is built to handle large dampers and demanding duty cycles with precision and reliability.
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