Abstract: An interoperable power distribution apparatus and systems includes N power distribution base units having a first configuration as sequentially arranged along a first dimension and secured as removably attached, and a second configuration where each of the N power distribution base units are independently and removably attached to a surface of one of N welding machine support units having various first, second, or third orthogonal dimensions, the N power distribution base units interoperable between the N welding machine support units having varied first, second, or orthogonal third dimensions, wherein N is a positive natural number between 1 and 100.