FSNF120-S US | Belimo Fire And Smoke Spring Return Actuator 70 In Lb 120V

Belimo · Fire & Life Safety

Description  The Belimo FSNF120-S US is a fire and smoke damper actuator designed to deliver 70 in-lb of torque with rapid spring return operation for life safety HVAC applications. It operates on AC 120 V power with on/off control and includes dual auxiliary switches for reliable position indication and system interlocking.     Technical Specifications  Condition New/Never Used Surplus Brand Belimo Category Dampers & Actuators Part Number FSNF120-S US Subcategory Fire & Smoke Actuators Nominal Voltage AC 120 V Nominal Frequency 50/60 Hz Voltage Range AC 96…132 V Power Consumption (Operation) 27 VA Power Consumption (Rest) 6 W / 9 VA Inrush Current 3.2 A Control Type On/Off Auxiliary Switches 2x SPDT Switching Capacity 7 A resistive, 2.5 A inductive @ 250 VAC Torque Output 70 in-lb (8 Nm) Angle of Rotation 95° Running Time (Motor) 15 s / 90° Running Time (Fail-Safe) <15 s Electrical Connection 18 AWG leads, 0.9 m, 1/2" NPT Degree of Protection NEMA 1 Noise Level 45 dB(A) motor Weight 6.2 lb (2.8 kg)   Information About FSNF120-S US The FSNF120-S US is part of Belimo’s fire and smoke actuator lineup engineered to meet stringent life safety and code compliance requirements. It features a grounded metal housing and electronic overload protection to ensure reliable operation during normal conditions and emergency events. The actuator is rated to deliver its full 8 Nm torque at elevated temperatures up to 350°F for 30 minutes, supporting critical fire and smoke control functions. Reversible mounting for both motor and fail-safe direction, along with integrated auxiliary switches, enables flexible installation and dependable system integration. Key Features Fire And Smoke Safety Design: Engineered specifically for fire and smoke dampers to support life safety operation and code compliance in HVAC systems. Spring Return Fail-Safe Operation: Integrated spring mechanism drives the damper to its safety position immediately upon power loss or emergency shutdown. High Temperature Torque Rating: Delivers 70 in-lb of torque at temperatures up to 350°F for 30 minutes, ensuring reliable operation during fire conditions. Dual Auxiliary Switches: Includes two SPDT switches for precise position indication, system interlocking, and safety monitoring. Fast Actuation Speed: Motor and fail-safe return operate in under 15 seconds to ensure rapid damper response. Electronic Overload Protection: Protects the actuator across the full 0…95° rotation range from mechanical overload or obstruction. Robust Grounded Housing: NEMA 1 metal enclosure provides durability and electrical safety for 120 V installations. The FSNF120-S US delivers the reliability and precision required for dependable fire and smoke damper control in life safety HVAC systems.

Brand: Belimo · Category: Fire & Life Safety

Key features

• Fire And Smoke Safety Design: Engineered specifically for fire and smoke dampers to support life safety operation and code compliance in HVAC systems.
• Spring Return Fail-Safe Operation: Integrated spring mechanism drives the damper to its safety position immediately upon power loss or emergency shutdown.
• High Temperature Torque Rating: Delivers 70 in-lb of torque at temperatures up to 350°F for 30 minutes, ensuring reliable operation during fire conditions.
• Dual Auxiliary Switches: Includes two SPDT switches for precise position indication, system interlocking, and safety monitoring.
• Fast Actuation Speed: Motor and fail-safe return operate in under 15 seconds to ensure rapid damper response.
• Electronic Overload Protection: Protects the actuator across the full 0…95° rotation range from mechanical overload or obstruction.
• Robust Grounded Housing: NEMA 1 metal enclosure provides durability and electrical safety for 120 V installations.

Specifications

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