The Helios HRFW 315/4 is a high-efficiency axial fan designed with a cylindrical duct constructed from galvanized sheet steel, featuring flanges on both ends for easy installation. The flange dimensions and fixing holes comply with DIN 24155 standards. The fan includes an external terminal box for convenient electrical connection.
Equipped with a highly efficient, aerodynamically optimized impeller made from durable polymers, the fan ensures smooth and balanced operation. It is suitable for use in temperature ranges from ‑30 °C up to +60 °C.
The fan is powered by a totally enclosed AC condenser motor with built-in thermal protection contacts. Speed control is achieved through voltage reduction, offering flexible operation. Maintenance-free and fitted with low-noise, sealed-for-life ball bearings, the fan is reversible for versatile airflow applications.