Electric Chain Hoist Duty Classification H4 Mount Type Hook Mounted - No Trolley Maximum Lifting Capacity 1 000 lb Number of Speeds 2 Programmable Programmable by Internal Controls Fixed Lift Speed Not Applicable Minimum Lift Speed 4.2 fpm Maximum Lift Speed 25 fpm Trolley Speed Not Applicable Maximum Lifting Length 20 ft Current at Minimum Voltage 6.3 A Current at Maximum Voltage 3.3 A Motor Horsepower 1 hp Operating Voltage 380-460V AC Headroom 17 5/16 in