The Helios HRFW 200/4 is a high-performance axial fan designed with a cylindrical duct constructed from galvanized sheet steel, equipped with flanges on both ends for straightforward installation. The duct dimensions and flange fixing holes comply with DIN 24155 standards. The terminal box is conveniently mounted externally on the casing.
This fan is fitted with a highly efficient 7‑blade profiled impeller made from impact-resistant polymers. It is aerodynamically optimized and dynamically balanced to Class G 6.3 according to VDI 2060, ensuring smooth and vibration-free operation. It operates reliably within temperatures ranging from ‑30°C to +60°C.
Powered by a totally enclosed AC condenser motor with built-in thermal protection, the HRFW 200/4 offers reversible operation. Speed control is achieved through voltage reduction. Maintenance-free, low-noise sealed-for-life ball bearings ensure quiet, dependable performance over time.