Helios Fans KRW EC 355÷60÷30

The Helios KRW EC 355÷60÷30 is a compact and efficient EC centrifugal fan tailored for direct installation into rectangular duct systems. Its robust housing is constructed from galvanized sheet steel and includes standardized flanges on both ends for a streamlined fit. The swing-out design of the motor and impeller assembly ensures easy servicing and maintenance access.

At the heart of the unit is a high-performance radial impeller with backward curved blades, made from a combination of plastic and galvanized steel. Dynamic balancing minimizes vibration, while the aerodynamically shaped inlet nozzle enhances airflow performance.

This model is powered by a speed-adjustable EC external rotor motor that offers high energy efficiency and carries an IP44 protection rating. The motor is maintenance-free, interference-free, and supported by ball bearings with long-term lubrication. Built-in electronic temperature monitoring safeguards both the motor and its internal electronics. Speed regulation is infinitely variable, either via a potentiometer or using the EUR-EC universal controller. Power is connected through an IP54-rated terminal box mounted directly to the cable for secure and easy installation.