AFB24-MFT Belimo Actuator
$466.00
Damper Actuator, 180 in-lb [20 Nm], Spring return, AC/DC 24 V, 2…10 V, MFT/programmable
1 in stock (can be backordered)
The Belimo AFB24-MFT Spring Return Damper Actuator, 180 in-lb [20 Nm], Spring return,Motor 500 Ohm for 4-20mA, 1500 Ohm for PWM, floating point and On/Off, 24Vac, 24Vdc (AFX24-MFT)
AFB24-MFT Belimo Actuator Tech Sheet
AFB24-MFT Belimo Actuator Install Manual
The Belimo AFB24-MFT Damper Actuator is a high-torque, spring-return actuator designed for precise airflow control in commercial HVAC systems. Delivering 180 in-lb (20 Nm) torque with 24V AC/DC operation and modulating control (2–10V), this actuator provides reliable fail-safe performance and flexible integration into building automation systems.
Apex Controls supplies genuine Belimo actuators with fast U.S. shipping for contractors, OEMs, and facility professionals.
Overview
The AFB24-MFT is part of Belimo’s heavy-duty AF series, engineered for larger dampers requiring fail-safe operation. It features a spring-return mechanism that automatically drives the damper to a safe position during power loss—critical for ventilation and system protection.
With Multi-Function Technology (MFT), this actuator can be configured for multiple control signals and feedback options, making it a versatile solution for modern BAS systems.
Key Features
- 180 in-lb (20 Nm) torque for large dampers
- Spring return (fail-safe) operation
- 24V AC/DC power supply
- MFT (Multi-Function Technology) for flexible configuration
- Supports 2–10V modulating control signals
- Adjustable running time and feedback options
- Direct-coupled mounting (no linkage required)
- Manual override capability
The MFT platform allows a single actuator to replace multiple models, reducing inventory and simplifying field replacements.
Applications
The Belimo AFB24-MFT is commonly used in:
- Air handling units (AHUs)
- Rooftop units (RTUs)
- Large zone dampers
- Industrial HVAC systems
- Building automation systems (BAS)
It is ideal for applications requiring higher torque and fail-safe positioning.
Technical Specifications
| Specification | Details |
|---|---|
| Angle of Rotation | 95° |
| Direction of Rotation | Reversible with CW/CCW mounting |
| Power Consumption (Holding) | 3 W |
| Safety Function | Yes |
| Shaft Diameter | 1/2″–1.05″ round; centers on 1/2″ and 3/4″ with insert; 1.05″ without insert |
| Actuator Type | Spring return |
| Application | MFT / Programmable |
| Control Type | MFT / Programmable |
| Degree of Protection | IP54; NEMA 2; UL Enclosure Type 2 |
| Electrical Connection | Cable |
| Manual Override | 5 mm hex crank (3/16″ Allen), supplied |
| Power Consumption (Running) | 5 W |
| Product Type | Actuator |
| Protection Category | IP54 |
| Running Time (Fail-safe) | <20 seconds |
| Running Time (Motor) | Default 150 s; variable 70–220 s |
| Torque | 180 in-lb (20 Nm) |
| Voltage (AC/DC) | 24 V |
| Weight | 6 lbs |
|---|---|
| Dimensions | 7 × 13 × 5 in |
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