HSD 250/4 – Helios – Cased Axial In Wall Fan – Low Pressure
Axial high-performance fan, tubular sleeve, cylindrical, smooth ends, directly driven.
Pipe sleeve made of galvanized sheet steel, with two stiffening beads running around the circumference and protective grille made of plastic.
Impeller with high-performance characteristics with profiled blades made of plastic, aerodynamically optimized for the application, dynamically balanced.
Three-phase squirrel-cage rotor motor, speed control, speed control, thermal contacts, closed design, maintenance-free, sealed, low-noise ball bearings with long-term lubrication.