
Belimo AFRB24-SR Actuator
The Belimo AFRB24-SR Actuator is a robust 180 in-lb spring return actuator engineered for modulating control in demanding HVACR applications. Operating on a 24Vac/Vdc power supply, this unit provides precise proportional control using a 2-10 Vdc signal, which can be adapted for 4-20 mA inputs with the addition of a 500 Ω resistor. Designed for high-torque requirements, it is a reliable choice for larger control valves and dampers where a mechanical fail-safe position is required during power loss. The proportional 24V actuator features a brushless DC motor controlled by an Application Specific Integrated Circuit (ASIC), ensuring consistent performance and electronic overload protection throughout its 95° rotation. A veteran technician will appreciate the manual override crank and the 18 GA appliance cable with a 1/2" NPT conduit connector for streamlined field installation. This HVAC valve actuator is built with a galvanized steel and plastic housing, meeting NEMA 2 and IP54 standards for reliable operation in air plenums.
Key Benefits- Delivers 180 in-lb torque for effective control of 1-1/4" to 3" valves and large-scale dampers.
- Features a fail-safe spring return mechanism with selectable direction (CW/CCW) to ensure safety during power outages.
- Utilizes a 2-10 Vdc modulating control signal for precise positioning and optimized system efficiency.
- Equipped with brushless DC motor technology and electronic stall protection to prevent motor burnout.
- Comes with a 3-foot 18 GA appliance cable and manual override hex crank for easier maintenance and commissioning.
Can I use a 4-20 mA control signal with this actuator?
Yes. While the native input is 2-10 Vdc, you can control the unit with a 4-20 mA signal by installing a ZG-R01 500 Ω resistor across the input terminals.
What happens if the actuator reaches a mechanical stop before 90 degrees?
The Belimo AFRB24-SR features intelligent electronic overload protection. It will sense the stall at any point in its travel and automatically stop driving to protect the internal gearing and motor.
Is this model compatible with older Belimo AF series linkages?
The AFRB series is often a direct replacement for the legacy AF series; however, it is recommended to verify the specific mounting bracket and shaft size (up to 1.05" diameter) as newer generations may have different primary/secondary configurations.
This item is not eligible for free shipping.
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.
Original: $500.56
-65%$500.56
$175.20Belimo AFRB24-SR Actuator
The Belimo AFRB24-SR Actuator is a robust 180 in-lb spring return actuator engineered for modulating control in demanding HVACR applications. Operating on a 24Vac/Vdc power supply, this unit provides precise proportional control using a 2-10 Vdc signal, which can be adapted for 4-20 mA inputs with the addition of a 500 Ω resistor. Designed for high-torque requirements, it is a reliable choice for larger control valves and dampers where a mechanical fail-safe position is required during power loss. The proportional 24V actuator features a brushless DC motor controlled by an Application Specific Integrated Circuit (ASIC), ensuring consistent performance and electronic overload protection throughout its 95° rotation. A veteran technician will appreciate the manual override crank and the 18 GA appliance cable with a 1/2" NPT conduit connector for streamlined field installation. This HVAC valve actuator is built with a galvanized steel and plastic housing, meeting NEMA 2 and IP54 standards for reliable operation in air plenums.
Key Benefits- Delivers 180 in-lb torque for effective control of 1-1/4" to 3" valves and large-scale dampers.
- Features a fail-safe spring return mechanism with selectable direction (CW/CCW) to ensure safety during power outages.
- Utilizes a 2-10 Vdc modulating control signal for precise positioning and optimized system efficiency.
- Equipped with brushless DC motor technology and electronic stall protection to prevent motor burnout.
- Comes with a 3-foot 18 GA appliance cable and manual override hex crank for easier maintenance and commissioning.
Can I use a 4-20 mA control signal with this actuator?
Yes. While the native input is 2-10 Vdc, you can control the unit with a 4-20 mA signal by installing a ZG-R01 500 Ω resistor across the input terminals.
What happens if the actuator reaches a mechanical stop before 90 degrees?
The Belimo AFRB24-SR features intelligent electronic overload protection. It will sense the stall at any point in its travel and automatically stop driving to protect the internal gearing and motor.
Is this model compatible with older Belimo AF series linkages?
The AFRB series is often a direct replacement for the legacy AF series; however, it is recommended to verify the specific mounting bracket and shaft size (up to 1.05" diameter) as newer generations may have different primary/secondary configurations.
This item is not eligible for free shipping.
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.
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Product Information
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Description
The Belimo AFRB24-SR Actuator is a robust 180 in-lb spring return actuator engineered for modulating control in demanding HVACR applications. Operating on a 24Vac/Vdc power supply, this unit provides precise proportional control using a 2-10 Vdc signal, which can be adapted for 4-20 mA inputs with the addition of a 500 Ω resistor. Designed for high-torque requirements, it is a reliable choice for larger control valves and dampers where a mechanical fail-safe position is required during power loss. The proportional 24V actuator features a brushless DC motor controlled by an Application Specific Integrated Circuit (ASIC), ensuring consistent performance and electronic overload protection throughout its 95° rotation. A veteran technician will appreciate the manual override crank and the 18 GA appliance cable with a 1/2" NPT conduit connector for streamlined field installation. This HVAC valve actuator is built with a galvanized steel and plastic housing, meeting NEMA 2 and IP54 standards for reliable operation in air plenums.
Key Benefits- Delivers 180 in-lb torque for effective control of 1-1/4" to 3" valves and large-scale dampers.
- Features a fail-safe spring return mechanism with selectable direction (CW/CCW) to ensure safety during power outages.
- Utilizes a 2-10 Vdc modulating control signal for precise positioning and optimized system efficiency.
- Equipped with brushless DC motor technology and electronic stall protection to prevent motor burnout.
- Comes with a 3-foot 18 GA appliance cable and manual override hex crank for easier maintenance and commissioning.
Can I use a 4-20 mA control signal with this actuator?
Yes. While the native input is 2-10 Vdc, you can control the unit with a 4-20 mA signal by installing a ZG-R01 500 Ω resistor across the input terminals.
What happens if the actuator reaches a mechanical stop before 90 degrees?
The Belimo AFRB24-SR features intelligent electronic overload protection. It will sense the stall at any point in its travel and automatically stop driving to protect the internal gearing and motor.
Is this model compatible with older Belimo AF series linkages?
The AFRB series is often a direct replacement for the legacy AF series; however, it is recommended to verify the specific mounting bracket and shaft size (up to 1.05" diameter) as newer generations may have different primary/secondary configurations.
This item is not eligible for free shipping.
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.












