EATON Cutler-Hammer low voltage busway consists of aluminum or copper bars inside a metal housing used for power distribution. Busway is available in ampere ratings of 100-5000A. Busway is available as feeder (indoor or outdoor) and plug-in. Feeder busway routes power from point-to-point, whereas plug-in busway allows for power to be tapped OFF along a run as needed. Busway is typically used in manufacturing buildings and high-rise office buildings.