Electric Chain Hoist, Duty Classification H4, Mount Type Hook Mounted – No Trolley, Maximum Lifting Capacity 20,000 lb, Number of Speeds 2, Programmable Programmable by VFD, Fixed Lift Speed Not Applicable, Minimum Lift Speed 3.5 fpm, Maximum Lift Speed 11 fpm, Trolley Speed Not Applicable, Maximum Lifting Length 10 ft, Current at Minimum Voltage 34.6 A, Current at Maximum Voltage 16.6 A, Motor Horsepower 4 3/4 hp, Operating Voltage 460V AC, Headroom 53 29/32 in