FSD60-VGA UL Classified 1 1/2 hr. Class I, Airfoil Vertical Blade, Grille Access
The FSD60-VGA a UL555 Classified Fire Damper and a UL555S Classified smoke damper. It is designed for supply or return ducts with grille outlet. It features:
Through the grille access to damper and accessories.
Easy installation from one side
Fail-safe design, which enables the damper to automatically assume the desired position when fire interrupts operational power.