Standard-Duty Industrial Fan, Blade Dia. 24 in, Stationary, Non-Oscillating, 1 Speeds, Voltage 277V AC, 1 Phase, CFM High 6050, Air Velocity @ 20 Ft. 450 fpm, Motor HP 1/2 hp, Motor RPM 1100, Operating Amps 1.8, Fan Mounting Location Fan Head Only, Fan Accessory Style Standard, Fan RPM 1100, Sound Level 73 dBA, Max. Ambient Temp. 104 Degrees F, Hz 60 Hz, Watts 450, Motor Type Permanent Split Capacitor, Drive Type Direct Drive, Outside Dia. 27 In., Height 31 in, Width 27 in, Max. Depth 24-1/4 In.