Helios Fans KRD EC 560÷100÷50 A

The Helios KRD EC 560÷100÷50 A is a rectangular EC centrifugal fan intended for inline installation in rectangular duct systems. The casing is constructed from galvanized steel with flanged ends, featuring a compact layout and a swing-out motor and impeller unit for easy maintenance and cleaning.

This fan incorporates a polymer centrifugal impeller with backward curved blades, dynamically balanced to minimize noise during operation. The airflow is enhanced by an aerodynamically optimized inlet nozzle. The unit is powered by a highly efficient, speed-controllable EC external rotor motor with IP54 protection. It uses maintenance-free ball bearings and offers interference-free operation. Integrated electronic temperature monitoring protects both the motor and electronics.

Speed can be adjusted steplessly using a potentiometer or the universal EUR-EC control system. Electrical connections are made via a standard IP54-rated terminal box with a permanently attached cable, ensuring reliable and simple installation.