The Helios HRFW 560/6 is a high-efficiency axial fan equipped with a tubular cylindrical duct made of galvanized sheet steel, featuring molded flanges on both ends and flange hole patterns compliant with DIN 24155 standards. An external terminal box is mounted on the casing for straightforward electrical installation.
This fan includes a 7‑blade impeller manufactured from thermoplastic, delivering high efficiency with low noise operation. It ensures vibration-free performance through dynamic balancing to quality level G 6.3 per VDI 2060 and DIN ISO 1940.
Driven by a single-phase AC capacitor motor, the unit is fully enclosed and maintenance-free, featuring built-in thermal contacts for motor protection. The motor speed is adjustable via voltage reduction, and the motor utilizes sealed, low-noise ball bearings with extended lubrication life. The fan supports reversible operation, providing flexible airflow control for various ventilation applications.