
Belimo AFRB24-S Actuator
The Belimo AFRB24-S Actuator is a robust, 180 in-lb spring return valve actuator engineered for reliable on/off control in demanding HVAC applications. Operating on a universal 24V AC/DC power supply, this unit provides a mechanical fail-safe position upon power loss, ensuring critical system dampers or valves return to a secure state in under 20 seconds. Designed for maximum field flexibility, it features 2x SPDT auxiliary switches for position signaling and a selectable direction of motion via CW/CCW mounting. The brushless DC motor technology eliminates the need for limit switches, protecting the gear train from excessive torque at the end of rotation. With an IP54 and NEMA 2 rated housing, the AFRB24-S is built for longevity in mechanical rooms or plenum spaces, offering a 75-second motor run time for smooth transitions.
Key Benefits for Contractors
- Universal Power Compatibility: Runs on 24V AC/DC, simplifying inventory and reducing wiring errors on the job site.
- Integrated Auxiliary Switches: Includes two built-in SPDT auxiliary switches (one fixed at 10° and one adjustable from 10° to 90°) for seamless integration with BMS protocols.
- Field Efficiency: Features a manual override via a 5 mm hex crank, allowing for easy positioning during installation or system testing without power.
- Rugged Durability: The NEMA 2 and UL Enclosure Type 2 ratings ensure performance in environments with falling dirt or light splashing.
- Compact Torque: Delivers a consistent 180 in-lb torque, making it a versatile choice for a wide range of damper and valve sizes.
Common Questions
What is the torque rating for the Belimo AFRB24-S?
This actuator provides 180 in-lb (20 Nm) of torque, suitable for larger dampers or high-pressure valve applications.
How does the fail-safe mechanism work?
The spring return mechanism stores energy during normal motor operation. If power is interrupted, the internal spring mechanically drives the actuator back to its zero position in less than 20 seconds.
Can the direction of rotation be changed?
Yes, the direction of motion is determined by how the actuator is mounted (CW/CCW), offering flexibility for diverse mechanical 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: $504.00
-65%$504.00
$176.40Belimo AFRB24-S Actuator
The Belimo AFRB24-S Actuator is a robust, 180 in-lb spring return valve actuator engineered for reliable on/off control in demanding HVAC applications. Operating on a universal 24V AC/DC power supply, this unit provides a mechanical fail-safe position upon power loss, ensuring critical system dampers or valves return to a secure state in under 20 seconds. Designed for maximum field flexibility, it features 2x SPDT auxiliary switches for position signaling and a selectable direction of motion via CW/CCW mounting. The brushless DC motor technology eliminates the need for limit switches, protecting the gear train from excessive torque at the end of rotation. With an IP54 and NEMA 2 rated housing, the AFRB24-S is built for longevity in mechanical rooms or plenum spaces, offering a 75-second motor run time for smooth transitions.
Key Benefits for Contractors
- Universal Power Compatibility: Runs on 24V AC/DC, simplifying inventory and reducing wiring errors on the job site.
- Integrated Auxiliary Switches: Includes two built-in SPDT auxiliary switches (one fixed at 10° and one adjustable from 10° to 90°) for seamless integration with BMS protocols.
- Field Efficiency: Features a manual override via a 5 mm hex crank, allowing for easy positioning during installation or system testing without power.
- Rugged Durability: The NEMA 2 and UL Enclosure Type 2 ratings ensure performance in environments with falling dirt or light splashing.
- Compact Torque: Delivers a consistent 180 in-lb torque, making it a versatile choice for a wide range of damper and valve sizes.
Common Questions
What is the torque rating for the Belimo AFRB24-S?
This actuator provides 180 in-lb (20 Nm) of torque, suitable for larger dampers or high-pressure valve applications.
How does the fail-safe mechanism work?
The spring return mechanism stores energy during normal motor operation. If power is interrupted, the internal spring mechanically drives the actuator back to its zero position in less than 20 seconds.
Can the direction of rotation be changed?
Yes, the direction of motion is determined by how the actuator is mounted (CW/CCW), offering flexibility for diverse mechanical 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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Belimo AFRB24-S Actuator is a robust, 180 in-lb spring return valve actuator engineered for reliable on/off control in demanding HVAC applications. Operating on a universal 24V AC/DC power supply, this unit provides a mechanical fail-safe position upon power loss, ensuring critical system dampers or valves return to a secure state in under 20 seconds. Designed for maximum field flexibility, it features 2x SPDT auxiliary switches for position signaling and a selectable direction of motion via CW/CCW mounting. The brushless DC motor technology eliminates the need for limit switches, protecting the gear train from excessive torque at the end of rotation. With an IP54 and NEMA 2 rated housing, the AFRB24-S is built for longevity in mechanical rooms or plenum spaces, offering a 75-second motor run time for smooth transitions.
Key Benefits for Contractors
- Universal Power Compatibility: Runs on 24V AC/DC, simplifying inventory and reducing wiring errors on the job site.
- Integrated Auxiliary Switches: Includes two built-in SPDT auxiliary switches (one fixed at 10° and one adjustable from 10° to 90°) for seamless integration with BMS protocols.
- Field Efficiency: Features a manual override via a 5 mm hex crank, allowing for easy positioning during installation or system testing without power.
- Rugged Durability: The NEMA 2 and UL Enclosure Type 2 ratings ensure performance in environments with falling dirt or light splashing.
- Compact Torque: Delivers a consistent 180 in-lb torque, making it a versatile choice for a wide range of damper and valve sizes.
Common Questions
What is the torque rating for the Belimo AFRB24-S?
This actuator provides 180 in-lb (20 Nm) of torque, suitable for larger dampers or high-pressure valve applications.
How does the fail-safe mechanism work?
The spring return mechanism stores energy during normal motor operation. If power is interrupted, the internal spring mechanically drives the actuator back to its zero position in less than 20 seconds.
Can the direction of rotation be changed?
Yes, the direction of motion is determined by how the actuator is mounted (CW/CCW), offering flexibility for diverse mechanical 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.












