Helios SKRD EC 560/100/50 A

Centrifugal EC duct fan, sound-insulated, for direct installation in rectangular duct systems. The fan unit can be swung out for easy access. The housing is made of galvanized steel sheet with standardized duct flange profiles on both sides, featuring a space-saving design and a sound-absorbing interior lining made of 50 mm thick mineral fiber panels. Thanks to the pivoting motor-impeller unit, maintenance is straightforward. The powerful radial impeller has backward-curved plastic blades that ensure vibration-free operation through dynamic balancing. The design is aerodynamically optimized with air intake through a nozzle. It is powered by an energy-efficient, speed-controllable EC external rotor motor with IP44 protection class and maximum efficiency. The fan is maintenance-free and trouble-free, with ball bearing suspension. It includes integrated electronic temperature monitoring for the EC motor and electronics. Speed control is infinitely variable via a potentiometer or through the EUR-EC universal control system. The connection is made via a standard connection box (IP54) that is mounted on the cable.