FSD60C UL Classified 1 hr. Class I, Airfoil Blade, Corridor Damper
The FSD60C is a tunnel corrdior fire/smoke damper with UL555 Classification as a 1 hour rated fire damper and a Leakage Class I UL555S Smoke Damper. It features:
1 hour rating.
EFL or PFL heat-actuated devices that permit closed closure through the actuator and are automatic remote resettable after test, smoke detection, or power failure conditions.