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 36.5 cfm, Watts 12/14 W, Voltage 115V AC, 60/50 Hz Hz, 0.13/0.15 A Amps, Electrical Connection - Fans Lead Wires, Sound Level 35/31, IP Rating IP20, Mounting Position Horizontal, Bearing Type Sleeve, 2750/2300 RPM RPM, Motor Design Shaded Pole, Motor Insulation Class A, Thermal Protection Impedance, Max. Ambient Temp. 158 Degrees F