Features

Rectangular-centrifugal fan with backward curved impeller for direct installation in rectangular duct system. Fan with swing out motor and impeller unit. Casing made from galvanised steel and flanged on both ends, compact design, service friendly (cleaning) through swing out motor and impeller unit. Highly efficient centrifugal impeller with backward curved blades from impact resistant polymers and galvanised steel. Dynamically balanced (Class G 6.3 to VDI 2060 and ISO 1940). Totally enclosed, single phase external rotor motor with thermal contacts wired in series with the windings, maintenance free, low-noise sealed for life ball bearings, tropical protection of windings. Speed control by use of a 5-step transformer controller or an electronic controller (stepless). Mains supply via pre-assembled terminal box (IP 44).