Medium Duty Exhaust Fan Propeller Dia 60 In. CFM @ 0.000-In. SP 60 048 Sones @ 0.000-In. SP @ 5 ft 51 Sones @ 0.250-In. SP @ 5 ft 48 Max Inlet Temp 104 Degrees F Voltage 208-230/460 60 Hz 3 Phase Full Load Amps 20.4-18.5/9.2 Motor HP 7-1/2 Max BHP 8.63 Bearing Type Regreasable Pillow Block Motor RPM 1750 Motor Type 3-Phase Motor Enclosure Totally Enclosed Fan-Cooled Motor Insulation Class F Fan RPM 450 Height 66 In. Width (In.) 66 Max Depth 26-1/2 In.