Product Overview The R2E175 series AC Centrifugal Fan is available with backward curved blades. The outstanding feature of the external rotor motors is their compact flat design which results from integrating the external rotor motor into the impeller. Blowers refers to devices with scroll housing, while centrifugal fans are shipped without scrolls. More power centrifugal fans with backward curved blades are used primarily for intake suction and do not require a scroll housing. They have high hydraulic efficiency. Their characteristic features are a low noise level. Relatively small air flow with a high increase in static pressure and space-saving application. 7 Blades Clockwise direction of rotation Class F and B insulation Continuous mode of operation Maintenance free ball bearings IP44 Protection rating Applications Industrial, Thermal Management, HVAC This listing is for Pack of 10. Bearing Type: Ball Bearing Voltage Type: AC External Depth: 62 Supply Voltage: 115 hazardous: false Air Flow - CFM: 320 Product Range: R2E175 Series Flow Rate - Imperial: 320 usEccn: EAR99 Power Rating: 75 Flow Rate - Metric: 9.06 Blower Type: Motorized Impeller Noise Rating: 67 Air Flow - m3/min: 9.06 Power Connection Type: Wire Leaded Fan Frame Size: 175 SVHC: No SVHC (25-Jun-2020)