Belimo FSAFB24-SR-S Smoke/Fire Damper Actuator 24V Spring Return with Auxiliary Switch

The Belimo FSAFB24-SR-S is a specialized damper actuator designed for smoke and fire damper applications in commercial HVAC systems. This 24-volt spring return actuator provides reliable fail-safe operation, automatically returning the damper to its safety position during power loss or fire emergency situations.

Key Features:

• 24VAC/DC operating voltage for universal compatibility
• Spring return mechanism ensures automatic damper closure during power failure
• Integrated auxiliary switch for status feedback and system monitoring
• Proportional control for precise damper positioning
• Designed specifically for smoke control and fire/life safety damper applications
• Meets requirements for UL 555S (smoke dampers) and UL 555 (fire dampers)
• Durable construction for long-term reliability in critical safety applications

This actuator is ideal for controlling motorized dampers in smoke evacuation systems, fire containment barriers, and air handling units where life safety compliance is required. The auxiliary switch provides valuable feedback for building automation systems and remote monitoring.