Helios Fans HRFW EC 315 A

The Helios HRFW EC 315 A is a high-performance axial fan featuring a robust cylindrical casing made from galvanized sheet steel with flanges on both ends in accordance with DIN 24155 Part 2. The unit includes a standard external terminal box with IP 55 protection for safe electrical connections.

This fan is fitted with a highly efficient, aerodynamically optimized polymer blade impeller designed to maximize airflow and reduce noise, dynamically balanced for smooth operation. It operates reliably across a temperature range from ‑30 °C to +60 °C.

Powered by a speed-controllable, energy-saving EC external rotor motor rated to protection class IP 54, the HRFW EC 315 A offers top efficiency and maintenance-free operation. The motor delivers interference-free performance with excellent electromagnetic compatibility (EMC) and uses durable ball bearings.

Integrated electronic temperature monitoring safeguards both the motor and control electronics. Speed control is versatile, with an internal potentiometer for adjusting the fan speed continuously between minimum and maximum. External control options include a speed potentiometer, a three-step switch, or universal control systems, as well as electronic differential pressure or temperature controllers, ensuring flexible operation tailored to various ventilation needs.