Overview
The Belimo FSAF120A.1 is a 120V On/Off spring return actuator designed for fire and smoke dampers. It provides reliable fail-safe operation to protect commercial building duct systems.
Features
- Mechanical spring return fail-safe mechanism on power disruption
- Standard 120V AC line voltage operation
- Two-position On/Off control logic
- Reversible CW/CCW mounting design
- Tested and listed to UL555 and UL555S requirements
Specifications
- Actuator Type: Spring return
- Torque: 180 in-lb [20 Nm]
- Voltage: AC 120 V
- Control Type: On/Off
- Angle of Rotation: 95°
- Degree of Protection: IP40, NEMA 1
Applications
- Fire and smoke damper operation in 120V HVAC installations
- Smoke compartmentation and air isolation in commercial buildings



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