Helios Fans SB EC 200 A

The Helios SB EC 200 A is an EC centrifugal fan designed with a sound-insulated housing made from galvanized sheet steel, featuring round connectors compatible with standard duct systems. The inner surface is lined with perforated sheet metal and a 50 mm thick mineral fibre board to minimize noise. A swing-out cover allows quick access, while the motor and impeller unit is retractable for simplified maintenance.

The fan includes a high-performance backward curved centrifugal impeller, dynamically balanced for quiet and smooth operation.

It is powered by a speed-controlled EC external rotor motor with IP44 protection, optimized for high efficiency. This motor is maintenance-free, radio interference-free, and features sealed ball bearings. Integrated temperature monitoring protects both the motor and its electronics. The unit is equipped with an internal potentiometer for adjusting fan speed within its full range, and also supports stepless control via an external potentiometer or the EUR-EC universal control system. Electrical connection is made via a standard IP54 terminal box mounted on an extended cable.