A transfer switch including: a bus bar; a track parallel to the bus bar; a first power source connection proximate to the track; a second power source connection proximate to the track offset along the track from the first power source connection; a conductive core slidably coupled to the track, wherein the core includes a deformable array of conductive sections and the array includes contacting surfaces on opposite sides of the array; wherein the conductive core has a first position providing a conductive coupling between the bus bar and the first power source and a second position providing a conductive coupling between the bus bar and the second power source.