Helios VDW 450/4

Vertical exhaust roof fan with an efficient, optimized aluminum housing and newly developed high-performance centrifugal wheel. Housing made of seawater-resistant aluminum with integrated intrusion protection. Motor support plate and base plate with intake nozzle made of galvanized steel. Base plate with threaded screws for mounting suction-side accessories. Protective grille standard on the outlet side in accordance with safety standards. High-performance centrifugal wheel with backward-curved plastic blades. Dynamically balanced according to industrial standards. Speed-controllable single-phase AC external rotor motor in a closed design with moisture protection. Maintenance-free and trouble-free, with an external test switch as standard.