Centrifugal roof fans - RDA 21-1819-4E

Centrifugal Roof Fan  

-With swirl free horizontal directed discharge for gas medium up to app. +40 °C.

-Stylish casing and base frame with intake nozzle made of galvanised steel sheet Flange connection at intake acc. to DIN 24155-2

-Discharge outlets protected from the weather with an aerodynamically shaped grille.

-Centrifugal impeller with backward curved blades, mounted on the rotor of a variable speed integral external rotor motor, protected to IP 44.

-Motor protection is through direct switching thermal contacts in the motor winding, dynamically balanced, installed vibration free, totally maintenance free.

-Performance data in according DIN 24166 tolerance class 2 (BS 848 Class "B").