Standard-Duty Industrial Fan, Blade Dia. 36 in, Stationary, Oscillating, 1 Speeds, Voltage 115/230V AC, 1 Phase, CFM High 11,690, Air Velocity @ 20 Ft. 500 fpm, Motor HP 1/2 hp, Motor RPM 825, Operating Amps 7/3.5, Fan Mounting Location Wall, Fan Accessory Style Standard, Max. Ambient Temp. 104 Degrees F, Hz 60 Hz, Watts 540, Motor Type Permanent Split Capacitor, Drive Type Direct Drive, Outside Dia. 37-1/2 In., Height 60 7/8 in, Width 40 1/4 in, Max. Depth 33-1/4 In., Cord Length 5 ft. Standard-duty industrial wall-mount fans cool heavy manufacturing areas and other dusty or dirty environments where floor space is limited. Compared to light-duty industrial fans, these standard-duty fans are made of heavier-gauge materials, have a higher-horsepower motor that is totally enclosed to keep ou.