Description
Belimo FSAFB24-SR-S Fire & Smoke Actuator Overview
The Belimo FSAFB24-SR-S is a high-performance fire and smoke damper actuator engineered for life-safety HVAC applications. Designed to meet the demanding requirements of commercial and industrial ventilation systems, this actuator delivers reliable, code-compliant operation for fire and smoke control dampers. With a robust 180 in-lb torque output and a 24 VAC/DC power supply, it is well-suited for a wide range of damper sizes and configurations.
Key Features
- Power Supply: 24 VAC/DC for flexible installation compatibility
- Torque Output: 180 in-lb — provides ample force for large or high-resistance damper blades
- Proportional Control Signal: 2–10 Vdc for precise modulating control
- Auxiliary Switches: 2 SPDT (Single Pole Double Throw) switches for end-position feedback and system integration
- Cable Length: 1-meter (1m) pre-wired cable for convenient field installation
- Integrated auxiliary switch for position confirmation and BAS/DDC integration
- Fail-safe spring-return design ensures damper moves to a safe position upon power loss
- Compact, rugged housing suitable for demanding commercial environments
Application & Benefits
The FSAFB24-SR-S is purpose-built for fire and smoke control damper applications in commercial buildings, hospitals, schools, and industrial facilities. The spring-return (SR) mechanism ensures the actuator drives the damper to its fail-safe position automatically in the event of a power interruption — a critical requirement for life-safety systems. The 2–10 Vdc proportional input allows seamless integration with building automation systems (BAS) and direct digital control (DDC) panels for precise airflow management.
The dual SPDT auxiliary switches provide end-position feedback signals, enabling system controllers and fire alarm panels to confirm damper status — open or closed — for code compliance and system monitoring. The 1m pre-attached cable simplifies wiring and reduces installation time in the field.
Technical Specifications
- Brand: Belimo
- Model / SKU: FSAFB24-SR-S
- Supply Voltage: 24 VAC/DC
- Torque: 180 in-lb
- Control Signal: 2–10 Vdc (proportional)
- Auxiliary Switches: 2 × SPDT
- Cable: 1m pre-wired lead cable
- Operation Type: Spring Return (Fail-Safe)
- Application: Fire & Smoke Damper Actuator
Why Choose Belimo?
Belimo is a globally recognized leader in actuator and valve technology for HVAC systems. Their fire and smoke actuators are engineered to meet stringent life-safety standards, offering long service life, dependable performance, and easy installation. The FSAFB24-SR-S reflects Belimo’s commitment to quality and innovation in building comfort and safety.
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