Electric Chain Hoist Duty Classification H4 Mount Type Hook Mounted - No Trolley Maximum Lifting Capacity 1 100 lb Number of Speeds Variable Programmable Non-Programmable Fixed Lift Speed Not Applicable Minimum Lift Speed 0.18 m/min Maximum Lift Speed 15 m/min Trolley Speed Not Applicable Maximum Lifting Length 16 ft Current at Minimum Voltage 2.9 A Current at Maximum Voltage 2.9 A Motor Horsepower 1 hp Operating Voltage 480V AC Headroom 16 7/16 in