Standard Square Axial Fan Fan Shape Square Mounting Eye O.C. 11 5/8 in Height 11 in Depth 3 1/8 in Width 11 in CFM @ 0.000-In. SP 1100 Watts 175 Voltage 115V AC 60 Hz 1.42 Amps Electrical Connection - Fans Terminals Sound Level 73 IP Rating IP44 Mounting Position Vertical or Horizontal Bearing Type Ball 2850 RPM Motor Insulation Class B Thermal Protection Thermally Protected Max Ambient Temp 122 Degrees F Blade Material Sheet Steel Housing Material Cast Aluminum