Standard Duty Exhaust Fan Propeller Dia 42 In. CFM @ 0.000-In. SP 14 712 Sones @ 0.000-In. SP @ 5 ft 17.1 Sones @ 0.250-In. SP @ 5 ft - Max Inlet Temp 104 Degrees F Voltage 208-230/460 60 Hz 3 Phase Full Load Amps 2.3-2.2/1.1 Motor HP 1/2 Max BHP 0.60 Bearing Type Regreasable Pillow Block Motor RPM 1725 Motor Type 3-Phase Motor Enclosure Open Dripproof Motor Insulation Class B Fan RPM 426 Height 46 In. Width (In.) 46 Max Depth 23-1/2 In.