Product Parameter: Model.R2D250-AM20-09 Motor:M2D068-EC Phase:3 Type:Backward Centrifugal Fan Nominal voltage:400/460/480VAC Frequency:50/60Hz Speed:2700/3000/3150/3200RPM Power consumption:170/250/265/270W Current draw:0.30/0.38/0.39A Weight:3kg Size:250mm Material of impeller:Sheet aluminum Type of protection:IP44 Number of blades:11 Insulation class:F Motor bearing:Ball bearing Min. ambient temperature / °C~Max. ambient temperature / °C:-25~90℃ Package: Fan*1