HSW 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 7 blades made of thermoplastic. High efficiency, low operating noise. Vibration-free running due to dynamic balancing according to quality level G 6.3 VDI 2060 and DIN ISO 1940.
Single-phase AC capacitor motor, closed design, maintenance-free, with built-in thermal contacts in the winding, speed-controllable through voltage reduction, sealed, low-noise ball bearings with long-term lubrication, reversible.