1)dia 200mm blades,220V/120v,50/60Hz,540-910rpm 2)single phase,UL,CE approval,ball bearings 3)dehumifier,air ... have characteristics of compact structure, convenient installation and high efficiency.2. YWF series external rotor motors have two kinds, single phase ... , CE approval in Europe and CCC safety certificate in China.2. Axial fan with external rotor motor YWF200—The diameter of ...