Standard Round Axial Fan Fan Shape Round Mounting Eye O.C. 19 7/8 in Diameter 20 3/4 in Depth 4 3/4 in CFM @ 0.000-In. SP 2910 Watts 240 Voltage 230V AC 50/60 Hz 1.1 Amps Electrical Connection - Fans Lead Wires Sound Level 73 IP Rating IP44 Mounting Position Vertical or Horizontal Bearing Type Ball 1700 RPM Motor Insulation Class B Thermal Protection Thermally Protected Max Ambient Temp 104 Degrees F Blade Material Galvanized Steel Housing Material Galvanized Steel