Methods and systems for coupling different size busway sections

The invention relates to methods and systems for coupling different size busway sections. Specifically, a reducer joint for interconnecting different size busway sections is described. The reducer joint includes a stack of a plurality of rectangular conductive plates, and a cover coupled to the stack. The stack has a first end for coupling to a first plurality of busbars of a first busway section and a second end opposite the first end for coupling to a second plurality of busbars of a second busway section. The cover defines a first opening adjacent the first end of the stack, the first opening having a first size and configured to receive the first plurality of busbars. The cover defines a second opening adjacent the second end of the stack, the second opening having a second size and configured to receive the second plurality of busbars. The first size and the second size are not identical.