FSLF120 Belimo US Actuator Fire & Smoke

Part number FSLF120 from Belimo, listed in Power Supplies & Transformers. Specifications on file: Actuator type Spring Return; Control Type On/Off; Torque 35 in-lb [4 Nm]; Voltage AC 120 V. KKM Solutions quotes this part with pricing and availability confirmed per order.

Tech Sheet The Belimo FSLF120 US Fire & Smoke Actuator is a UL-listed, spring-return actuator designed for the reliable operation of fire and smoke dampers in HVAC systems . Built for life safety applications, this actuator delivers 30 in-lb (3.5 Nm) torque and fast fail-safe response to ensure dampers move to their safety position during power loss. shipping for contractors, OEMs, and facility professionals. Overview The FSLF120 US is engineered specifically for fire and smoke damper applications , where dependable fail-safe operation is critical. It operates on 120V AC power and uses on/off control , making it ideal for integration with life safety systems and building automation controls. This actuator is designed to meet strict code requirements for smoke control and fire protection, ensuring reliable performance in emergency situations. Key Features 30 in-lb (3.5 Nm) torque for fire and smoke dampers Spring return (fail-safe) operation 120V AC power supply On/Off control signal Fast response time (approx. 15 seconds run and spring return) Direct-coupled mounting (no linkage required) Compact, rugged design for life safety applications Designed for UL-listed fire and smoke damper systems The spring-return mechanism ensures the damper moves to its designated safety position automatically during power failure or emergency conditions. Applications The Belimo FSLF120 US is commonly used in: Fire and smoke dampers Combination fire/smoke HVAC systems Commercial buildings and high-rise structures Hospitals and healthcare facilities Schools, universities, and public buildings It is specifically designed for life safety systems , where actuator reliability is critical for occupant protection. Technical Specifications Specification Details Angle of Rotation 95° Direction of Rotation Reversible with CW/CCW mounting Safety Function Yes Shaft Diameter 3/8″–1/2″ round (enters on 1/2″) Actuator Type Spring return Application Fire & Smoke Control Type On/Off Degree of Protection IP30; NEMA 1; UL Enclosure Type 1 Electrical Connection Cable Product Type Actuator Protection Category IP30 Running Time 5–19 seconds Running Time (Fail-safe) <15 seconds Running Time (Motor) Default 15 s; variable; rated at 32…122°F (0…50°C) Torque 30 in-lb (3.5 Nm) from 32…350°F (0…177°C) Voltage (AC/DC) 120 V