Belimo FSLF120-S-FC S/R Fire/Smoke Actuator On/Off 35 PSI 120V

The Belimo FSLF120-S-FC is a fire and smoke damper actuator that regulates the opening and closing of fire/smoke dampers in HVAC systems. It operates on 120V electricity and has a 35 lb-ft  3.5 Nm  torque output. When power is lost, this  spring return actuator automatically returns the damper to its initial position, which is typically closed, guaranteeing that vital fire and smoke control functions are kept up even in emergencies. The Belimo FSLF120-S-FC loses power when the building's fire alarm or smoke alarm goes off. As a result, the actuator's spring mechanism closes the fire/smoke damper, thereby isolating the impacted area and halting the spread of flames and smoke.