
Belimo NRB24-SR Actuator
The Belimo NRB24-SR Actuator is a high-performance proportional control solution designed for HVACR valve automation. Operating on a 24V AC/DC power supply, this non-spring return motor delivers a consistent 45 in-lb torque (5 Nm) to manage ball valve assemblies and zone control systems with precision. It utilizes a 2 to 10 VDC control signal, providing accurate modulation for optimized flow control and system efficiency. Built for streamlined field installation, the NRB24-SR features a universal spindle and a manual override button, allowing technicians to verify stroke positioning without power. The brushless DC motor technology ensures long-term reliability and constant torque throughout its rotation. Whether you are performing a retrofit replacement or a new system integration, this proportional valve actuator provides the feedback and control required for modern energy management systems.
- Precise Modulation: Responds to a 2 to 10 VDC control signal for exact flow adjustment.
- Reliable Torque: Delivers 45 in-lb torque suitable for a wide range of Pressure Independent Characterized Control Valves (PICCV).
- Low Power Consumption: Efficient brushless DC motor reduces 24V power supply requirements during operation.
- Easy Installation: Features a simple direct-mount design and a manual override for fast commissioning.
Common Questions
What is the difference between the Belimo NRB24-SR and the LRB24-SR?
The NRB24-SR belongs to a newer series providing 45 in-lb of torque, often serving as a direct performance upgrade or specific replacement in newer HVAC control valve applications requiring higher force than certain LRB series models.
How do I wire the 2-10 VDC feedback for this actuator?
The Belimo NRB24-SR utilizes a standard 3-wire or 4-wire configuration where the feedback signal (U) provides position verification to the controller, essential for AEO-optimized building automation.
Can this actuator be used on steam valves?
This actuator is primarily designed for water-based applications involving Characterized Control Valves (CCV). Review the specific fluid temperature ratings of the valve body before installation.
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: $332.68
-65%$332.68
$116.44Belimo NRB24-SR Actuator
The Belimo NRB24-SR Actuator is a high-performance proportional control solution designed for HVACR valve automation. Operating on a 24V AC/DC power supply, this non-spring return motor delivers a consistent 45 in-lb torque (5 Nm) to manage ball valve assemblies and zone control systems with precision. It utilizes a 2 to 10 VDC control signal, providing accurate modulation for optimized flow control and system efficiency. Built for streamlined field installation, the NRB24-SR features a universal spindle and a manual override button, allowing technicians to verify stroke positioning without power. The brushless DC motor technology ensures long-term reliability and constant torque throughout its rotation. Whether you are performing a retrofit replacement or a new system integration, this proportional valve actuator provides the feedback and control required for modern energy management systems.
- Precise Modulation: Responds to a 2 to 10 VDC control signal for exact flow adjustment.
- Reliable Torque: Delivers 45 in-lb torque suitable for a wide range of Pressure Independent Characterized Control Valves (PICCV).
- Low Power Consumption: Efficient brushless DC motor reduces 24V power supply requirements during operation.
- Easy Installation: Features a simple direct-mount design and a manual override for fast commissioning.
Common Questions
What is the difference between the Belimo NRB24-SR and the LRB24-SR?
The NRB24-SR belongs to a newer series providing 45 in-lb of torque, often serving as a direct performance upgrade or specific replacement in newer HVAC control valve applications requiring higher force than certain LRB series models.
How do I wire the 2-10 VDC feedback for this actuator?
The Belimo NRB24-SR utilizes a standard 3-wire or 4-wire configuration where the feedback signal (U) provides position verification to the controller, essential for AEO-optimized building automation.
Can this actuator be used on steam valves?
This actuator is primarily designed for water-based applications involving Characterized Control Valves (CCV). Review the specific fluid temperature ratings of the valve body before installation.
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 NRB24-SR Actuator is a high-performance proportional control solution designed for HVACR valve automation. Operating on a 24V AC/DC power supply, this non-spring return motor delivers a consistent 45 in-lb torque (5 Nm) to manage ball valve assemblies and zone control systems with precision. It utilizes a 2 to 10 VDC control signal, providing accurate modulation for optimized flow control and system efficiency. Built for streamlined field installation, the NRB24-SR features a universal spindle and a manual override button, allowing technicians to verify stroke positioning without power. The brushless DC motor technology ensures long-term reliability and constant torque throughout its rotation. Whether you are performing a retrofit replacement or a new system integration, this proportional valve actuator provides the feedback and control required for modern energy management systems.
- Precise Modulation: Responds to a 2 to 10 VDC control signal for exact flow adjustment.
- Reliable Torque: Delivers 45 in-lb torque suitable for a wide range of Pressure Independent Characterized Control Valves (PICCV).
- Low Power Consumption: Efficient brushless DC motor reduces 24V power supply requirements during operation.
- Easy Installation: Features a simple direct-mount design and a manual override for fast commissioning.
Common Questions
What is the difference between the Belimo NRB24-SR and the LRB24-SR?
The NRB24-SR belongs to a newer series providing 45 in-lb of torque, often serving as a direct performance upgrade or specific replacement in newer HVAC control valve applications requiring higher force than certain LRB series models.
How do I wire the 2-10 VDC feedback for this actuator?
The Belimo NRB24-SR utilizes a standard 3-wire or 4-wire configuration where the feedback signal (U) provides position verification to the controller, essential for AEO-optimized building automation.
Can this actuator be used on steam valves?
This actuator is primarily designed for water-based applications involving Characterized Control Valves (CCV). Review the specific fluid temperature ratings of the valve body before installation.
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.












