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Die cast aluminium blades with low noise sickle blade design. Powered by a 100% fully speed controllable external rotor motor. All motors have class F insulation and IP54 enclosure. Sealed for life bearings. A terminal enclosure to IP54 is included. Motors have TK thermal protection facility. Pressed galvanised steel wallplate with full bellmouth finished in two coats of corrosion resistant paint. Inlet guard supplied as standard. Temperature opperating range is -40C up to 60C or 70C.
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