Primary function was to haul passenger trains on electrified tracks between New York City's Grand Central Station and Harmon, NY. The locomotive operated on 660 volts DC and produced 2,200hp. Power was obtained by an "electrified" third rail, but used a small pantograph on top of the engine to receive power from overhead wires when operating in NYC's Park Avenue tunnel. This type of locomotive served as the prototype for Lionel and Ives model trains.