Helios Fans KRD EC 400÷60÷35

The Helios KRD EC 400÷60÷35 is a rectangular EC centrifugal fan engineered for inline installation in rectangular ductwork. It features a galvanized steel casing with flanged ends and a compact design that simplifies maintenance by allowing the motor and impeller assembly to swing out for cleaning and servicing.

The fan is equipped with a centrifugal impeller made from polymer with backward curved blades, dynamically balanced to minimize noise. Its aerodynamically optimized inlet includes a nozzle to improve airflow efficiency. Powered by a high-efficiency, energy-saving EC external rotor motor protected to IP54, the unit offers maintenance-free, interference-free operation with durable ball bearings. Integrated electronic temperature monitoring ensures safe motor and electronics function.

Speed control is stepless and can be adjusted via a potentiometer or through the universal EUR-EC control system. The electrical connection is made through a standard IP54-rated terminal box with a permanently attached cable, providing a reliable and user-friendly setup.