Helios Fans SKRW EC 400÷60÷35

The Helios SKRW EC 400÷60÷35 is a rectangular EC centrifugal fan designed for seamless in-line installation within rectangular duct systems. Its robust casing is made from galvanised steel, flanged at both ends, and acoustically lined with 50 mm thick mineral fibreboard for effective sound insulation. The swing-out motor and impeller unit facilitate straightforward maintenance and cleaning.

Equipped with a high-performance centrifugal impeller with backward curved aluminium blades, the fan ensures smooth, vibration-free operation due to precise dynamic balancing. The aerodynamic design of the inlet nozzle optimises airflow for improved efficiency.

Powered by an energy-saving, speed-controlled EC external rotor motor with IP44 protection, this fan offers maximum efficiency and reliability. The motor is maintenance-free, ball bearing mounted, and operates without radio interference. It features integrated electronic temperature monitoring for both the motor and its electronics. A built-in internal potentiometer allows adjustment of the fan speed between minimum and maximum, with additional stepless speed control possible through an external potentiometer or the universal EUR-EC control system. Electrical connections are managed via a standard IP54 terminal box mounted on an extended cable.