The Helios KRD EC 560÷100÷50 B is a high-performance rectangular EC centrifugal fan designed for inline installation in rectangular ductwork. Its galvanized steel housing includes flanges on both ends and features a compact, space-saving design. The swing-out motor and impeller unit allow for straightforward cleaning and maintenance.
Equipped with a backward curved centrifugal impeller made from polymer, the fan is dynamically balanced to ensure smooth, low-noise operation. An aerodynamically optimized inlet nozzle improves airflow efficiency. The energy-saving EC external rotor motor delivers high efficiency and is protected to IP54. It includes maintenance-free ball bearings, operates interference-free, and features integrated electronic temperature monitoring for added protection.
The fan allows stepless speed control via a potentiometer or the universal EUR-EC control system. Electrical connection is achieved through a standard IP54-rated terminal box with a permanently attached cable, enabling quick and secure installation.