Standard Round Axial Fan Fan Shape Round Mounting Eye O.C. 9 11/16 in Diameter 10 in Depth 3 1/2 in Fan Cord Length 2 ft CFM @ 0.000-In. SP 454/537 Watts 38/40 Voltage 230V AC 50/60 Hz 0.18/0.19 Amps Electrical Connection - Fans Lead Wires Sound Level 51/54 IP Rating IP33 Air Flow 454/537 cfm Mounting Position Vertical or Horizontal Bearing Type Ball 1400/1700 RPM Motor Design Permanent Split Capacitor Motor Insulation Class A Max Ambient Temp 176 Degrees F