Standard Square Axial Fan Fan Shape Square Mounting Eye O.C. 2 13/16 in Height 3 1/8 in Depth 1 1/2 in Width 3 1/8 in CFM @ 0.000-In. SP 30/23 Watts 12/14 Voltage 115V AC 60/50 Hz 0.13/0.15 Amps Electrical Connection - Fans Lead Wires Sound Level 35/31 IP Rating IP20 Mounting Position Horizontal Bearing Type Sleeve 2750/2300 RPM Motor Design Shaded Pole Motor Insulation Class A Thermal Protection Impedance Max Ambient Temp 158 Degrees F