Helios Fans SBD 315 A

The Helios SBD 315 A is a centrifugal fan built for efficient and low-noise performance, featuring a robust sound-insulated casing made from galvanized sheet steel. The housing includes spigots designed to fit standard duct sizes and is internally lined with a 50 mm thick abrasion-resistant mineral fibreboard for effective acoustic insulation. The removable lid provides easy access to the internal components, while the motor and impeller can swing out for straightforward maintenance.

This model is equipped with a high-efficiency backward curved centrifugal impeller made from durable polymers. The impeller is dynamically balanced in accordance with class G 6.3 of DIN and ISO 1940 T.1 to ensure smooth and quiet operation.

The fan is powered by a totally enclosed, 3‑phase external rotor motor with thermal contacts connected to the terminal box. The motor is maintenance-free and features low-noise, sealed ball bearings with long-term lubrication for extended service life.