Electric Chain Hoist Duty Classification H4 Mount Type Geared Trolley Maximum Lifting Capacity 500 lb Number of Speeds 2 Programmable Programmable by Internal Controls Fixed Lift Speed Not Applicable Minimum Lift Speed 5.5 fpm Maximum Lift Speed 33 fpm Trolley Speed Not Applicable Maximum Lifting Length 10 ft Current at Minimum Voltage 5.1 A Current at Maximum Voltage 2.8 A Motor Horsepower 5/8 hp Operating Voltage 380-460V AC Headroom 16 13/32 in For Minimum Beam Height 3 in