FSNF120 US | Belimo Fire And Smoke Actuator 70 In Lb 120V Spring Return
Belimo · Fire & Life Safety
Description The Belimo FSNF120 US is a fire and smoke damper actuator designed to provide rapid and reliable on/off control during life-safety events. It delivers 70 in-lb of torque with spring return operation and is engineered for dependable performance in fire-rated HVAC damper applications. Technical Specifications Condition New/Never Used Surplus Brand Belimo Category Actuators & Dampers Part Number FSNF120 US Subcategory Fire & Smoke Actuators Actuator Type Spring return, fire and smoke Nominal Voltage AC 120 V Nominal Frequency 50/60 Hz Voltage Range AC 96…132 V Nominal Torque 70 in-lb (8 Nm) Torque Rating (Fire) 70 in-lb @ 350°F (177°C) for 30 min Control Input On/Off Power Consumption (Operation) 27 VA Power Consumption (Rest) 6 W Inrush Current 3.2 A Running Time (Motor) 15 s / 90° Running Time (Fail-Safe) <15 s Angle of Rotation 95° Electrical Connection 3 leads, 32 in (0.9 m) cable, 18 AWG, 1/2" NPT Overload Protection Electronic throughout 0…95° rotation Degree of Protection NEMA 1 Enclosure Type UL Enclosure Type 1 Ambient Temperature 32…122°F (0…50°C) Weight 3.8 lb (1.7 kg) Information About FSNF120 US The FSNF120 US is part of Belimo’s certified fire and smoke actuator series developed specifically for life-safety HVAC applications. It is engineered to operate reliably under elevated temperatures and emergency conditions, ensuring proper damper positioning during fire or smoke events. The actuator uses a spring return mechanism to drive the damper to its safety position upon power loss, meeting stringent code and regulatory requirements. Designed for maintenance-free service, it integrates robust electrical protection and proven mechanical components for long-term reliability. Key Features Life-Safety Rated Fire And Smoke Actuation: Designed and tested to deliver 70 in-lb of torque at temperatures up to 350°F, ensuring reliable damper operation during fire conditions. Spring Return Fail-Safe Operation: Automatically drives the damper to its designated safety position upon power loss, supporting critical smoke containment strategies. Fast Response Time: Achieves full 90° rotation in approximately 15 seconds for both normal and fail-safe operation, enabling rapid system response. Robust Electrical Design: Operates on 120 VAC power with grounded housing and electronic overload protection for safe and stable performance. Flexible Installation Orientation: Direction of motion and fail-safe action can be configured through CW/CCW mounting to suit damper requirements. Integrated Position Indication: Mechanical position indicator provides clear visual confirmation of damper status during inspection and commissioning. Code And Standard Compliance: UL listed, UL 2043 compliant, and approved for use in air plenums and fire-rated HVAC systems. The FSNF120 US delivers the reliability and precision required for fire and smoke damper control in commercial and institutional HVAC life-safety systems.
Brand: Belimo · Category: Fire & Life Safety
Key features
- Life-Safety Rated Fire And Smoke Actuation: Designed and tested to deliver 70 in-lb of torque at temperatures up to 350°F, ensuring reliable damper operation during fire conditions.
- Spring Return Fail-Safe Operation: Automatically drives the damper to its designated safety position upon power loss, supporting critical smoke containment strategies.
- Fast Response Time: Achieves full 90° rotation in approximately 15 seconds for both normal and fail-safe operation, enabling rapid system response.
- Robust Electrical Design: Operates on 120 VAC power with grounded housing and electronic overload protection for safe and stable performance.
- Flexible Installation Orientation: Direction of motion and fail-safe action can be configured through CW/CCW mounting to suit damper requirements.
- Integrated Position Indication: Mechanical position indicator provides clear visual confirmation of damper status during inspection and commissioning.
- Code And Standard Compliance: UL listed, UL 2043 compliant, and approved for use in air plenums and fire-rated HVAC systems.
Specifications
| Manufacturer part number | FSNF120 US |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Actuators & Dampers |
| Part Number | FSNF120 US |
| Subcategory | Fire & Smoke Actuators |
| Actuator Type | Spring return, fire and smoke |
| Nominal Voltage | AC 120 V |
| Nominal Frequency | 50/60 Hz |
| Voltage Range | AC 96…132 V |
| Nominal Torque | 70 in-lb (8 Nm) |
| Torque Rating (Fire) | 70 in-lb @ 350°F (177°C) for 30 min |
| Control Input | On/Off |
| Power Consumption (Operation) | 27 VA |
| Power Consumption (Rest) | 6 W |
| Inrush Current | 3.2 A |
| Running Time (Motor) | 15 s / 90° |
| Running Time (Fail-Safe) | <15 s |
| Angle of Rotation | 95° |
| Electrical Connection | 3 leads, 32 in (0.9 m) cable, 18 AWG, 1/2" NPT |
| Overload Protection | Electronic throughout 0…95° rotation |
| Degree of Protection | NEMA 1 |
| Enclosure Type | UL Enclosure Type 1 |
| Ambient Temperature | 32…122°F (0…50°C) |
| Weight | 3.8 lb (1.7 kg) |
| Product type | Fire; Smoke Actuators |
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