
Belimo EFB24-SR-S Actuator
The Belimo EFB24-SR-S is a high-torque spring return actuator engineered for modulating control in demanding HVAC applications. Delivering 270 in-lb of torque, this unit is designed to automate large dampers and valves, ensuring fail-safe positioning during power loss. Operating on a 24Vac/Vdc power supply, it utilizes a 2-10Vdc proportional signal for precise positioning. The integrated auxiliary switches provide essential position feedback for system interlocking and sequencing. Built with a rugged IP54-rated housing, the EFB24-SR-S handles high-static environments where smaller actuators fail. This direct-coupled actuator features a manual override and a field-selectable direction of rotation, streamlining onsite commissioning. Designed for reliability in air handling units and complex ventilation systems, it meets the requirements for commercial HVAC damper control and flue gas applications.
Key Benefits- Provides 270 in-lb of torque for high-load dampers and valves.
- Fast spring return fail-safe operation ensures safety during power interruptions.
- Supports 2-10Vdc modulating control for granular airflow management.
- Includes two SPDT auxiliary switches for status feedback and control logic.
- Universal clamp assembly fits various shaft sizes for faster field installation.
What is the typical runtime for the EFB24-SR-S?
The motor drive typically operates within 95 seconds for 90 degrees of rotation, while the spring return completes the movement in less than 20 seconds at nominal temperatures.
Can this actuator be used in tandem?
Yes, the Belimo EFB24-SR-S can be mechanically linked with a second actuator on the same shaft to double the torque capacity for exceptionally large damper sections.
Is the EFB24-SR-S suitable for outdoor installation?
While the NEMA 2 (IP54) enclosure offers moisture resistance, we recommend a weather shield (e.g., ZS-100 or ZS-150) if the 24V actuator is exposed to direct rain or UV degradation.
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: $992.85
-65%$992.85
$347.50Belimo EFB24-SR-S Actuator
The Belimo EFB24-SR-S is a high-torque spring return actuator engineered for modulating control in demanding HVAC applications. Delivering 270 in-lb of torque, this unit is designed to automate large dampers and valves, ensuring fail-safe positioning during power loss. Operating on a 24Vac/Vdc power supply, it utilizes a 2-10Vdc proportional signal for precise positioning. The integrated auxiliary switches provide essential position feedback for system interlocking and sequencing. Built with a rugged IP54-rated housing, the EFB24-SR-S handles high-static environments where smaller actuators fail. This direct-coupled actuator features a manual override and a field-selectable direction of rotation, streamlining onsite commissioning. Designed for reliability in air handling units and complex ventilation systems, it meets the requirements for commercial HVAC damper control and flue gas applications.
Key Benefits- Provides 270 in-lb of torque for high-load dampers and valves.
- Fast spring return fail-safe operation ensures safety during power interruptions.
- Supports 2-10Vdc modulating control for granular airflow management.
- Includes two SPDT auxiliary switches for status feedback and control logic.
- Universal clamp assembly fits various shaft sizes for faster field installation.
What is the typical runtime for the EFB24-SR-S?
The motor drive typically operates within 95 seconds for 90 degrees of rotation, while the spring return completes the movement in less than 20 seconds at nominal temperatures.
Can this actuator be used in tandem?
Yes, the Belimo EFB24-SR-S can be mechanically linked with a second actuator on the same shaft to double the torque capacity for exceptionally large damper sections.
Is the EFB24-SR-S suitable for outdoor installation?
While the NEMA 2 (IP54) enclosure offers moisture resistance, we recommend a weather shield (e.g., ZS-100 or ZS-150) if the 24V actuator is exposed to direct rain or UV degradation.
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-S is a high-torque spring return actuator engineered for modulating control in demanding HVAC applications. Delivering 270 in-lb of torque, this unit is designed to automate large dampers and valves, ensuring fail-safe positioning during power loss. Operating on a 24Vac/Vdc power supply, it utilizes a 2-10Vdc proportional signal for precise positioning. The integrated auxiliary switches provide essential position feedback for system interlocking and sequencing. Built with a rugged IP54-rated housing, the EFB24-SR-S handles high-static environments where smaller actuators fail. This direct-coupled actuator features a manual override and a field-selectable direction of rotation, streamlining onsite commissioning. Designed for reliability in air handling units and complex ventilation systems, it meets the requirements for commercial HVAC damper control and flue gas applications.
Key Benefits- Provides 270 in-lb of torque for high-load dampers and valves.
- Fast spring return fail-safe operation ensures safety during power interruptions.
- Supports 2-10Vdc modulating control for granular airflow management.
- Includes two SPDT auxiliary switches for status feedback and control logic.
- Universal clamp assembly fits various shaft sizes for faster field installation.
What is the typical runtime for the EFB24-SR-S?
The motor drive typically operates within 95 seconds for 90 degrees of rotation, while the spring return completes the movement in less than 20 seconds at nominal temperatures.
Can this actuator be used in tandem?
Yes, the Belimo EFB24-SR-S can be mechanically linked with a second actuator on the same shaft to double the torque capacity for exceptionally large damper sections.
Is the EFB24-SR-S suitable for outdoor installation?
While the NEMA 2 (IP54) enclosure offers moisture resistance, we recommend a weather shield (e.g., ZS-100 or ZS-150) if the 24V actuator is exposed to direct rain or UV degradation.
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.












