Features

Centrifugal circular duct fan for direct installation in the duct system. For delivery of medium and small air volumes against high resistance. Casing made from galvanised sheet steel with spigots to fit standard duct sizes. Backward curved centrifugal impeller made from polymers. Directly fitted on motor and dynamically balanced as a unit providing low noise levels and high efficiency. Totally enclosed, single phase external rotor motor with built-in thermal contacts, maintenance free, low-noise sealed for life ball bearings, speed control by voltage reduction.