Electric Chain Hoist Duty Classification H4 Mount Type Motorized Trolley Maximum Lifting Capacity 4 000 lb Number of Speeds 2 Programmable Programmable by VFD Fixed Lift Speed Not Applicable Minimum Lift Speed 1 fpm Maximum Lift Speed 7 fpm Trolley Speed 40 fpm Maximum Lifting Length 15 ft Current at Minimum Voltage 5.1 A Current at Maximum Voltage 1.7 A Motor Horsepower 1 1/4 hp Operating Voltage 230V AC Headroom 27 3/16 in For Minimum Beam Height 4 29/32 in