•External rotor motor protected through thermal contact
•0-100% regulable speed through electronic controller or transformer
•Balanced according VDI 2060, class Q 2,5
•Oversized ball bearings, lubricated for life, apt till -30°C
•Low noise level
•Sickle shaped aluminium sheet blades
•Inlet airflow way "V" or outlet "A", to choose
•Other tensions, 2 or 3 speed motors and special executions on request
•Several constructive options: T1, T2, T3