Standard Duty Exhaust Fan Propeller Dia 42 In. CFM @ 0.000-In. SP 16 646 Sones @ 0.000-In. SP @ 5 ft 20 Sones @ 0.250-In. SP @ 5 ft 19.6 Max Inlet Temp 104 Degrees F Voltage 208-230/460 60 Hz 3 Phase Full Load Amps 2.8-2.8/1.4 Motor HP 3/4 Max BHP 0.90 Bearing Type Regreasable Pillow Block Motor RPM 1725 Motor Type 3-Phase Motor Enclosure Open Dripproof Motor Insulation Class B Fan RPM 482 Height 46 In. Width (In.) 46 Max Depth 23-1/2 In.