Belimo EFB24-SR Actuator
The Belimo EFB24-SR is a high-torque, spring return damper actuator engineered for modulating control in demanding commercial HVAC systems. Delivering a minimum of 270 in-lb torque, this proportional actuator is designed to operate large air dampers or actuated valves with precision. It operates on a 24VAC/DC power supply and accepts a 2-10VDC control signal, which can be adapted for 4-20mA applications using an external 500 Ω resistor. Featuring a brushless DC motor and fail-safe functionality, the Belimo EFB24-SR ensures reliable position maintenance and positive close-off during power loss. The direct-coupled mounting system fits shafts up to 1.05 inches, and the NEMA 2 rated housing provides durable protection for indoor installations. This unit includes a 2-10VDC feedback signal for real-time position monitoring without the need for additional switches.
Key Benefits- Constant Torque Delivery: Provides a consistent 270 in-lb of force throughout the 95-degree rotation for reliable damper management.
- Electronic Overload Protection: Integrated ASIC technology protects the brushless DC motor from damage in stall conditions across the entire stroke.
- Field Flexibility: Features a reversible fail-safe direction (CW/CCW) and a manual override crank for simplified installation and testing.
- Tight Shut-off: Shipped with a 5-degree pre-tension to ensure automatic compression against damper gaskets.
- High Efficiency: Low power consumption (8W running, 4.5W holding) allows for optimized transformer sizing in large-scale HVAC automation.
Can the Belimo EFB24-SR be used with a 4-20mA controller?
Yes, while the native input is 2-10VDC, you can interface with 4-20mA signals by adding a 500 Ω resistor (ZG-R01) across the input terminals.
Does this model include auxiliary switches?
The standard EFB24-SR does not include internal auxiliary switches. If your application requires end-stop signaling, consider the EFB24-SR-S model or external switch accessories.
What is the maximum damper size this actuator can handle?
This high-torque actuator is generally rated for dampers up to 67.5 square feet, though actual sizing depends on damper type, seals, and air pressure.
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: $856.98
-65%$856.98
$299.94Belimo EFB24-SR Actuator
The Belimo EFB24-SR is a high-torque, spring return damper actuator engineered for modulating control in demanding commercial HVAC systems. Delivering a minimum of 270 in-lb torque, this proportional actuator is designed to operate large air dampers or actuated valves with precision. It operates on a 24VAC/DC power supply and accepts a 2-10VDC control signal, which can be adapted for 4-20mA applications using an external 500 Ω resistor. Featuring a brushless DC motor and fail-safe functionality, the Belimo EFB24-SR ensures reliable position maintenance and positive close-off during power loss. The direct-coupled mounting system fits shafts up to 1.05 inches, and the NEMA 2 rated housing provides durable protection for indoor installations. This unit includes a 2-10VDC feedback signal for real-time position monitoring without the need for additional switches.
Key Benefits- Constant Torque Delivery: Provides a consistent 270 in-lb of force throughout the 95-degree rotation for reliable damper management.
- Electronic Overload Protection: Integrated ASIC technology protects the brushless DC motor from damage in stall conditions across the entire stroke.
- Field Flexibility: Features a reversible fail-safe direction (CW/CCW) and a manual override crank for simplified installation and testing.
- Tight Shut-off: Shipped with a 5-degree pre-tension to ensure automatic compression against damper gaskets.
- High Efficiency: Low power consumption (8W running, 4.5W holding) allows for optimized transformer sizing in large-scale HVAC automation.
Can the Belimo EFB24-SR be used with a 4-20mA controller?
Yes, while the native input is 2-10VDC, you can interface with 4-20mA signals by adding a 500 Ω resistor (ZG-R01) across the input terminals.
Does this model include auxiliary switches?
The standard EFB24-SR does not include internal auxiliary switches. If your application requires end-stop signaling, consider the EFB24-SR-S model or external switch accessories.
What is the maximum damper size this actuator can handle?
This high-torque actuator is generally rated for dampers up to 67.5 square feet, though actual sizing depends on damper type, seals, and air pressure.
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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Description
The Belimo EFB24-SR is a high-torque, spring return damper actuator engineered for modulating control in demanding commercial HVAC systems. Delivering a minimum of 270 in-lb torque, this proportional actuator is designed to operate large air dampers or actuated valves with precision. It operates on a 24VAC/DC power supply and accepts a 2-10VDC control signal, which can be adapted for 4-20mA applications using an external 500 Ω resistor. Featuring a brushless DC motor and fail-safe functionality, the Belimo EFB24-SR ensures reliable position maintenance and positive close-off during power loss. The direct-coupled mounting system fits shafts up to 1.05 inches, and the NEMA 2 rated housing provides durable protection for indoor installations. This unit includes a 2-10VDC feedback signal for real-time position monitoring without the need for additional switches.
Key Benefits- Constant Torque Delivery: Provides a consistent 270 in-lb of force throughout the 95-degree rotation for reliable damper management.
- Electronic Overload Protection: Integrated ASIC technology protects the brushless DC motor from damage in stall conditions across the entire stroke.
- Field Flexibility: Features a reversible fail-safe direction (CW/CCW) and a manual override crank for simplified installation and testing.
- Tight Shut-off: Shipped with a 5-degree pre-tension to ensure automatic compression against damper gaskets.
- High Efficiency: Low power consumption (8W running, 4.5W holding) allows for optimized transformer sizing in large-scale HVAC automation.
Can the Belimo EFB24-SR be used with a 4-20mA controller?
Yes, while the native input is 2-10VDC, you can interface with 4-20mA signals by adding a 500 Ω resistor (ZG-R01) across the input terminals.
Does this model include auxiliary switches?
The standard EFB24-SR does not include internal auxiliary switches. If your application requires end-stop signaling, consider the EFB24-SR-S model or external switch accessories.
What is the maximum damper size this actuator can handle?
This high-torque actuator is generally rated for dampers up to 67.5 square feet, though actual sizing depends on damper type, seals, and air pressure.
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.
