Electric Chain Hoist Duty Classification H4 Mount Type Motorized Trolley Maximum Lifting Capacity 2 000 lb Number of Speeds 1 Programmable Non-Programmable Fixed Lift Speed 7 fpm Minimum Lift Speed Not Applicable Maximum Lift Speed Not Applicable Trolley Speed 40 fpm Maximum Lifting Length 20 ft Current at Minimum Voltage 16.9 A Current at Maximum Voltage 8.5 A Motor Horsepower 5/8 hp Operating Voltage 115/230V AC Headroom 16 1/2 in For Minimum Beam Height 5 3/32 in