Standard Round Axial Fan Fan Shape Round Mounting Eye O.C. 9 7/16 in Diameter 9 1/8 in Depth 3 1/8 in CFM @ 0.000-In. SP 544 Watts 87 Voltage 230V AC 60 Hz 0.39 Amps Electrical Connection - Fans Terminals Sound Level 70 IP Rating IP44 Mounting Position Vertical or Horizontal Bearing Type Ball 3100 RPM Motor Insulation Class F Thermal Protection Thermally Protected Max Ambient Temp 161 Degrees F Blade Material Sheet Steel Housing Material Cast Aluminum