Belimo FSNF120-S-FC Actuator
The Belimo FSNF120-S-FC is a high-torque fire and smoke damper actuator designed for life safety applications requiring rigorous fail-safe performance. Operating on 120V AC, this spring return actuator delivers 70 in-lb of torque to ensure positive closure of fire and smoke dampers during power loss or alarm states. Engineered for high-temperature endurance, it meets UL 555 and UL 555S standards, capable of withstanding 250°F. The "S" model includes two built-in auxiliary switches for precise position feedback, while the "FC" designation indicates fast closure speeds of less than 15 seconds, critical for smoke containment protocols. This on/off thermal enclosure unit is a direct replacement for legacy Honeywell or Johnson Controls fire/smoke actuators, providing a fail-safe motor solution that integrates seamlessly into existing building automation systems via standard 1/2-inch NPT connectors and square shaft couplings.
- Fast Run Time: Achieves full closure/opening in sequence-critical smoke management scenarios.
- High-Temperature Reliability: Rated for survival in 250°F environments for designated durations per life safety codes.
- Integrated Feedback: Dual internal SPDT auxiliary switches provide 0° to 95° position verification without external modules.
- Manual Override: Features a manual crank for easy testing and damper positioning during installation or maintenance.
- Robust Construction: Die-cast aluminum housing provides superior protection for internal gearing and the high-tension spring.
Common HVACR Technical Questions:
How do I wire the auxiliary switches for position monitoring?
The Belimo FSNF120-S-FC features two internal SPDT switches. One is fixed at 10° for closed indication, and the other is fixed at 85° for open indication, typically wired to a fire alarm control panel or BMS.
Can this actuator be used in variable air volume (VAV) systems?
This is an on/off actuator designed specifically for fire/smoke dampers. It is not intended for modulating control in standard VAV airflow applications.
Is the thermal sensor (FATs) included with the FC model?
While compatible with thermal sensors, the FSNF120-S-FC utilizes the building's safety circuit. Always verify if your local code requires a manual reset high-limit sensor at the damper assembly.
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: $682.69
-65%$682.69
$238.94Belimo FSNF120-S-FC Actuator
The Belimo FSNF120-S-FC is a high-torque fire and smoke damper actuator designed for life safety applications requiring rigorous fail-safe performance. Operating on 120V AC, this spring return actuator delivers 70 in-lb of torque to ensure positive closure of fire and smoke dampers during power loss or alarm states. Engineered for high-temperature endurance, it meets UL 555 and UL 555S standards, capable of withstanding 250°F. The "S" model includes two built-in auxiliary switches for precise position feedback, while the "FC" designation indicates fast closure speeds of less than 15 seconds, critical for smoke containment protocols. This on/off thermal enclosure unit is a direct replacement for legacy Honeywell or Johnson Controls fire/smoke actuators, providing a fail-safe motor solution that integrates seamlessly into existing building automation systems via standard 1/2-inch NPT connectors and square shaft couplings.
- Fast Run Time: Achieves full closure/opening in sequence-critical smoke management scenarios.
- High-Temperature Reliability: Rated for survival in 250°F environments for designated durations per life safety codes.
- Integrated Feedback: Dual internal SPDT auxiliary switches provide 0° to 95° position verification without external modules.
- Manual Override: Features a manual crank for easy testing and damper positioning during installation or maintenance.
- Robust Construction: Die-cast aluminum housing provides superior protection for internal gearing and the high-tension spring.
Common HVACR Technical Questions:
How do I wire the auxiliary switches for position monitoring?
The Belimo FSNF120-S-FC features two internal SPDT switches. One is fixed at 10° for closed indication, and the other is fixed at 85° for open indication, typically wired to a fire alarm control panel or BMS.
Can this actuator be used in variable air volume (VAV) systems?
This is an on/off actuator designed specifically for fire/smoke dampers. It is not intended for modulating control in standard VAV airflow applications.
Is the thermal sensor (FATs) included with the FC model?
While compatible with thermal sensors, the FSNF120-S-FC utilizes the building's safety circuit. Always verify if your local code requires a manual reset high-limit sensor at the damper assembly.
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 FSNF120-S-FC is a high-torque fire and smoke damper actuator designed for life safety applications requiring rigorous fail-safe performance. Operating on 120V AC, this spring return actuator delivers 70 in-lb of torque to ensure positive closure of fire and smoke dampers during power loss or alarm states. Engineered for high-temperature endurance, it meets UL 555 and UL 555S standards, capable of withstanding 250°F. The "S" model includes two built-in auxiliary switches for precise position feedback, while the "FC" designation indicates fast closure speeds of less than 15 seconds, critical for smoke containment protocols. This on/off thermal enclosure unit is a direct replacement for legacy Honeywell or Johnson Controls fire/smoke actuators, providing a fail-safe motor solution that integrates seamlessly into existing building automation systems via standard 1/2-inch NPT connectors and square shaft couplings.
- Fast Run Time: Achieves full closure/opening in sequence-critical smoke management scenarios.
- High-Temperature Reliability: Rated for survival in 250°F environments for designated durations per life safety codes.
- Integrated Feedback: Dual internal SPDT auxiliary switches provide 0° to 95° position verification without external modules.
- Manual Override: Features a manual crank for easy testing and damper positioning during installation or maintenance.
- Robust Construction: Die-cast aluminum housing provides superior protection for internal gearing and the high-tension spring.
Common HVACR Technical Questions:
How do I wire the auxiliary switches for position monitoring?
The Belimo FSNF120-S-FC features two internal SPDT switches. One is fixed at 10° for closed indication, and the other is fixed at 85° for open indication, typically wired to a fire alarm control panel or BMS.
Can this actuator be used in variable air volume (VAV) systems?
This is an on/off actuator designed specifically for fire/smoke dampers. It is not intended for modulating control in standard VAV airflow applications.
Is the thermal sensor (FATs) included with the FC model?
While compatible with thermal sensors, the FSNF120-S-FC utilizes the building's safety circuit. Always verify if your local code requires a manual reset high-limit sensor at the damper assembly.
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.
