Helios Fans RR EC 200 B

The Helios RR EC 200 B is a highly efficient EC radial duct fan designed for direct installation in duct systems. It features a robust housing made from galvanized sheet steel, equipped with round connecting pieces compatible with standard pipe sizes for easy integration. The radial impeller has backward curved plastic blades directly mounted and dynamically balanced as a single unit, ensuring low noise operation and superior efficiency. Powered by an energy-saving, speed-controllable EC external rotor motor with an IP54 protection rating, this fan is maintenance-free, radio interference-free, and uses ball bearings for durability. Integrated electronic temperature monitoring protects both the motor and its electronics. Speed control is infinitely variable via an internal potentiometer or a universal control system. Electrical connections are made through a standard IP54 terminal box mounted externally on the housing, allowing for simple installation and maintenance.