Electric Chain Hoist Duty Classification H4 Mount Type Hook Mounted - No Trolley Maximum Lifting Capacity 275 lb Number of Speeds Variable Programmable Non-Programmable Fixed Lift Speed Not Applicable Minimum Lift Speed 0.15 m/min Maximum Lift Speed 30 m/min Trolley Speed Not Applicable Maximum Lifting Length 26 ft Current at Minimum Voltage 3.1 A Current at Maximum Voltage 3.1 A Motor Horsepower 1 hp Operating Voltage 480V AC Headroom 14 5/16 in