A track assembly includes a track, a support member, a support member conductor, a first conductor and a plurality of second conductors. The support member conductor may be configured to move substantially laterally and electrically contact the second conductors. The second conductor may be configured to move laterally and electrically contact the first conductor. The support member conductor may be configured to move the second conductor into electrical contact with the first conductor. The first conductor may extend substantially in the longitudinal direction and/or the first conductor may be disposed at least partially in the track. The plurality of second conductors may be disposed such that the support member conductor may be in contact with at least two second conductors of the plurality of second conductors in all positions of the support member relative to the track.