Belimo FSAFB24-SR-S Actuator
The Belimo FSAFB24-SR-S is a high-torque fire and smoke actuator designed for proportional modulation of UL555S rated dampers in commercial HVAC systems. Delivering 180 in-lb of torque, this spring return actuator ensures reliable fail-safe operation by automatically returning the damper to its safety position during power interruptions. It operates on a universal 24 VAC/DC supply and accepts a 2-10VDC control signal, providing precise airflow management. This model features two integrated SPDT auxiliary switches for end-point position indication, eliminating the need for separate feedback sensors. Engineered for extreme conditions, it is rated for operation at 250°F and complies with UL 555 and UL 555S standards. The modulating damper control is achieved via a brushless DC motor with overload protection, ensuring a constant run time of 75 seconds independent of torque. Maintenance-free and built with a 3-foot appliance cable, it is the standard for life safety damper applications.
Key Benefits- High Torque Output: Provides 180 in-lb (20 Nm) for reliable operation of dampers up to 16 sq. ft.
- Precision Modulation: Responds to a 2-10VDC control signal for accurate position control in ventilation systems.
- Integrated Monitoring: Dual SPDT auxiliary switches allow for remote confirmation of damper open/close status.
- Robust Fail-Safe: Mechanical spring return ensures positive close-off in under 20 seconds during emergency power loss.
- Code Compliance: Meets cULus, UL 555, and UL 555S requirements for use in 250°F fire and smoke applications.
Can this actuator be used with a 4-20mA signal?
Yes, by adding a 500Ω resistor, the Belimo FSAFB24-SR-S can be converted to respond to a 4-20mA control input.
Does this unit support manual positioning for installation?
Yes, it includes a 5mm hex crank (3/16" Allen) for manual override, allowing technicians to position the damper before power is applied.
What is the maximum temperature rating for this actuator?
The unit is UL rated for operation at 250°F (121°C) for 30 minutes, meeting stringent life safety requirements.
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: $739.27
-65%$739.27
$258.74Belimo FSAFB24-SR-S Actuator
The Belimo FSAFB24-SR-S is a high-torque fire and smoke actuator designed for proportional modulation of UL555S rated dampers in commercial HVAC systems. Delivering 180 in-lb of torque, this spring return actuator ensures reliable fail-safe operation by automatically returning the damper to its safety position during power interruptions. It operates on a universal 24 VAC/DC supply and accepts a 2-10VDC control signal, providing precise airflow management. This model features two integrated SPDT auxiliary switches for end-point position indication, eliminating the need for separate feedback sensors. Engineered for extreme conditions, it is rated for operation at 250°F and complies with UL 555 and UL 555S standards. The modulating damper control is achieved via a brushless DC motor with overload protection, ensuring a constant run time of 75 seconds independent of torque. Maintenance-free and built with a 3-foot appliance cable, it is the standard for life safety damper applications.
Key Benefits- High Torque Output: Provides 180 in-lb (20 Nm) for reliable operation of dampers up to 16 sq. ft.
- Precision Modulation: Responds to a 2-10VDC control signal for accurate position control in ventilation systems.
- Integrated Monitoring: Dual SPDT auxiliary switches allow for remote confirmation of damper open/close status.
- Robust Fail-Safe: Mechanical spring return ensures positive close-off in under 20 seconds during emergency power loss.
- Code Compliance: Meets cULus, UL 555, and UL 555S requirements for use in 250°F fire and smoke applications.
Can this actuator be used with a 4-20mA signal?
Yes, by adding a 500Ω resistor, the Belimo FSAFB24-SR-S can be converted to respond to a 4-20mA control input.
Does this unit support manual positioning for installation?
Yes, it includes a 5mm hex crank (3/16" Allen) for manual override, allowing technicians to position the damper before power is applied.
What is the maximum temperature rating for this actuator?
The unit is UL rated for operation at 250°F (121°C) for 30 minutes, meeting stringent life safety requirements.
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 FSAFB24-SR-S is a high-torque fire and smoke actuator designed for proportional modulation of UL555S rated dampers in commercial HVAC systems. Delivering 180 in-lb of torque, this spring return actuator ensures reliable fail-safe operation by automatically returning the damper to its safety position during power interruptions. It operates on a universal 24 VAC/DC supply and accepts a 2-10VDC control signal, providing precise airflow management. This model features two integrated SPDT auxiliary switches for end-point position indication, eliminating the need for separate feedback sensors. Engineered for extreme conditions, it is rated for operation at 250°F and complies with UL 555 and UL 555S standards. The modulating damper control is achieved via a brushless DC motor with overload protection, ensuring a constant run time of 75 seconds independent of torque. Maintenance-free and built with a 3-foot appliance cable, it is the standard for life safety damper applications.
Key Benefits- High Torque Output: Provides 180 in-lb (20 Nm) for reliable operation of dampers up to 16 sq. ft.
- Precision Modulation: Responds to a 2-10VDC control signal for accurate position control in ventilation systems.
- Integrated Monitoring: Dual SPDT auxiliary switches allow for remote confirmation of damper open/close status.
- Robust Fail-Safe: Mechanical spring return ensures positive close-off in under 20 seconds during emergency power loss.
- Code Compliance: Meets cULus, UL 555, and UL 555S requirements for use in 250°F fire and smoke applications.
Can this actuator be used with a 4-20mA signal?
Yes, by adding a 500Ω resistor, the Belimo FSAFB24-SR-S can be converted to respond to a 4-20mA control input.
Does this unit support manual positioning for installation?
Yes, it includes a 5mm hex crank (3/16" Allen) for manual override, allowing technicians to position the damper before power is applied.
What is the maximum temperature rating for this actuator?
The unit is UL rated for operation at 250°F (121°C) for 30 minutes, meeting stringent life safety requirements.
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.
