Electric Chain Hoist Duty Classification H4 Mount Type Geared Trolley Maximum Lifting Capacity 500 lb Number of Speeds 2 Programmable Programmable by VFD Fixed Lift Speed Not Applicable Minimum Lift Speed 2.5 fpm Maximum Lift Speed 15 fpm Trolley Speed Not Applicable Maximum Lifting Length 15 ft Current at Minimum Voltage 3.4 A Current at Maximum Voltage 3.4 A Motor Horsepower 3/4 hp Operating Voltage 460V AC Headroom 16 5/16 in For Minimum Beam Height 3 3/16 in