Standard Square Axial Fan Fan Shape Square Mounting Eye O.C. 6 in Height 6 15/16 in Depth 3 1/2 in Width 6 15/16 in CFM @ 0.000-In. SP 355/315 Watts 24/30 Voltage 115V AC 60/50 Hz 0.27/0.25 Amps Electrical Connection - Fans Terminals Sound Level 66/62 IP Rating IP20 Mounting Position Vertical or Horizontal Bearing Type Ball 3250/2800 RPM Motor Design Shaded Pole Motor Insulation Class A Thermal Protection Auto Max Ambient Temp 158 Degrees F