Helios Fans HRFW 400/4

The Helios HRFW 400/4 is a high-performance axial fan featuring a cylindrical duct constructed from galvanized sheet steel, equipped with flanges on both ends in accordance with DIN 24155 specifications. The duct encloses a highly efficient, aerodynamically optimized, and dynamically balanced profiled blade impeller made from durable polymers. This fan is suitable for use in temperatures ranging from ‑30 °C up to +60 °C.

Powering the fan is a totally enclosed AC condenser motor that includes built-in thermal contacts for enhanced protection. The motor speed can be adjusted through voltage reduction, providing flexible and efficient operation. The unit requires no maintenance and is equipped with low-noise, sealed-for-life ball bearings, ensuring quiet and reliable performance. Additionally, the fan is reversible, allowing versatile airflow control.