The Air King 1/4 HP Industrial Grade I-Beam Mounted Fans are ideal for plants, warehouses, large offices and other industrial spaces that require powerful air circulation. The 9424 is a 24-Inch I-Beam mounted fan. The motor is 3-speed, 1/4 HP, 120V, 1 phase, totally enclosed, ball bearing, permanently lubricated with a permanent split capacitor. CFM is 5130, 4490, 3670 (High, Medium, Low). RPM is 1060, 925, 745 (High, Medium, Low). Amps 2.4, 1.9, 1-1/2 (High, Medium, Low). Watts 252, 199, 157 (High, Medium, Low). Rear mounted pull cord switch. A black, 10-foot, 3-conductor SJT type power cord. Blade, guard and mounts are powder coated steel. ETL and OSHA compliant. Tested in accordance with AMCA standard 230.99. Product Dimensions: 41-Inch Long by 27-Inch Wide by 41-Inch High. Weight: 70.8-Pounds. Air King offers a full line of industrial grade and commercial grade air circulating fan solutions to meet almost any need you might have. Whether your need is in industrial settings such as manufacturing plants and warehouses or more commercial setting such as offices, schools or hospitals - Air King has the perfect solution for you. Powerful motors that last for years and years are what Air King's Air Circulators have come to been know as and we are not stopping now.