Electric Chain Hoist Duty Classification H4 Mount Type Motorized Trolley Maximum Lifting Capacity 6 000 lb Number of Speeds 1 Programmable Non-Programmable Fixed Lift Speed 17 fpm Minimum Lift Speed Not Applicable Maximum Lift Speed Not Applicable Trolley Speed 40 fpm Maximum Lifting Length 15 ft Current at Minimum Voltage 19.6 A Current at Maximum Voltage 1.7 A Motor Horsepower 4 3/4 hp Operating Voltage 208-230/460V AC Headroom 32 29/32 in For Minimum Beam Height 5 3/16 in