1)YWF350,950-1600rpm speed,single phase ans three phase 2)380/ ... .2. Brief introduction of Axial fan with external rotor motor YWF350—The diameter of the fan blade: 350 mm—Material: Guard ... H12M20812-7172 Fan Motor & YWF800, YWF710, YWF630, YWF500, YWF450, YWF400, YWF350, YWF300, YWF250, YWF200 2012/01/12 --- 2049/12/31 CE ...