Helios Fans RDW 200/4

The Helios RDW 200/4 is a robust horizontal exhaust roof fan engineered for optimal ventilation performance with efficiency-optimized aluminum housing resistant to seawater corrosion. It includes integrated intrusion protection for reliable outdoor use.

The fan’s motor support plate and base plate with inflow nozzle are manufactured from galvanized steel, featuring threaded screws for secure attachment of suction-side accessories, compliant with DIN 24155 standards. A protective grille is installed as standard on the discharge side according to DIN EN ISO 13857.

Equipped with a high-performance radial impeller made of durable plastic, the backward-curved blades are dynamically balanced per DIN ISO 1940 – 1 for smooth, vibration-free operation.

Powered by a speed-controllable three-phase external rotor motor in a fully enclosed design with IP55 protection, the motor is ball bearing-mounted with moisture protection insulation, ensuring maintenance-free and radio interference-free operation. The fan also comes standard with an external revision switch, rated IP65 for added safety and convenience.

Ideal for demanding rooftop ventilation applications, the RDW 200/4 offers reliable, efficient airflow with long-lasting durability.