Electric Chain Hoist Duty Classification H4 Mount Type Push 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 14.9 A Current at Maximum Voltage 9 A Motor Horsepower 1 hp Operating Voltage 115V AC Headroom 16 13/16 in For Minimum Beam Height 3 in