Standard-Duty Industrial Fan, Blade Dia. 30 in, Stationary, Non-Oscillating, 1 Speeds, Voltage 277V AC, 1 Phase, CFM High 9450, Air Velocity @ 20 Ft. 850 fpm, Motor HP 1/2 hp, Motor RPM 1100, Operating Amps 1.8, Fan Mounting Location Ceiling, Wall, Fan Accessory Style Standard, Fan RPM 1100, Sound Level 77 dBA, Max. Ambient Temp. 104 Degrees F, Hz 60 Hz, Watts 450, Motor Type Permanent Split Capacitor, Drive Type Direct Drive, Outside Dia. 33 In., Height 33 in, Width 33 in, Max. Depth 24-1/4 In.