Electric Chain Hoist Duty Classification H4 Mount Type Hook Mounted - No Trolley Maximum Lifting Capacity 20 000 lb Number of Speeds 1 Programmable Non-Programmable Fixed Lift Speed 11 fpm Minimum Lift Speed Not Applicable Maximum Lift Speed Not Applicable Trolley Speed Not Applicable Maximum Lifting Length 20 ft Current at Minimum Voltage 32.8 A Current at Maximum Voltage 15.8 A Motor Horsepower 4 3/4 hp Operating Voltage 208-230/460V AC Headroom 53 29/32 in