Electric Chain Hoist Duty Classification H4 Mount Type Hook Mounted - No Trolley Maximum Lifting Capacity 4 000 lb Number of Speeds 1 Fixed Lift Speed 10 fpm Minimum Lift Speed Not Applicable Maximum Lift Speed Not Applicable Trolley Speed 10 Maximum Lifting Length 20 ft Current at Minimum Voltage 6 A Current at Maximum Voltage 6 A Motor Horsepower 1 3/4 hp Operating Voltage 230/460V AC Headroom 26 1/16 in For Minimum Beam Height Not Applicable