Helios Fans HRFW EC 630

The Helios HRFW EC 630 is a powerful EC axial fan engineered for high-efficiency ventilation in industrial and commercial duct systems. Its cylindrical housing is made from durable galvanized sheet steel and includes flanges on both ends for secure duct connections. Designed to DIN 24155 Part 2 standards, the fan also features an IP55-rated external terminal box for safe and convenient wiring.

At the heart of the fan is a dynamically balanced, aerodynamically profiled impeller made from impact-resistant polymers. This 7‑blade design ensures excellent airflow performance with minimal noise and vibration. The unit is rated for reliable operation in temperature conditions ranging from ‑30 °C to +60 °C.

The fan is powered by a high-efficiency EC external rotor motor (IP54), offering energy-saving performance with minimal maintenance. The motor includes integrated electronic temperature monitoring for both the electronics and motor windings, ensuring long-term reliability. Its ball bearing system is sealed and designed for quiet, continuous operation.

Control options are highly versatile — speed can be set internally via a built-in potentiometer or externally using a speed control potentiometer. It also supports three-step switching or fully variable control using a universal controller or an electronic differential pressure or temperature controller. This makes the HRFW EC 630 ideal for applications requiring precision airflow control and dependable energy efficiency.