制造商 ebm-papst 分类 AC Fans Airflow 645 CFM (18.3 m3/min) Bearing Type Ball Depth 85 mm Height - IP Rating IP44 Noise 61 dBA Operating Supply Voltage 230 VAC Power Rating 48 W Series W4E250 Speed 1640 RPM Termination Style Wire Leads Type Axial Width -