Helios Fans KRW EC 315÷50÷25 B

The Helios KRW EC 315÷50÷25 B is a high-performance EC centrifugal fan designed for direct integration into rectangular ductwork. It features a durable, space-efficient housing made from galvanized steel and equipped with standardized channel flanges on both ends. The motor and impeller unit can swing out, enabling quick and easy maintenance access.

This fan incorporates a radial impeller with backward curved blades, crafted from plastic and galvanized steel. Balanced dynamically for smooth, low-vibration operation, the impeller design is further enhanced with an aerodynamically optimized inlet nozzle to improve airflow.

Powered by a highly efficient EC external rotor motor, this model delivers energy-saving performance with protection class IP44. The motor is maintenance-free, resistant to radio interference, and supported by long-lasting ball bearings. An integrated electronic temperature monitoring system safeguards both the motor and internal electronics. The fan allows infinitely variable speed adjustment using either a potentiometer or the EUR-EC universal control system. Electrical connections are managed through an IP54-rated terminal box mounted directly on the supplied cable.