Southwire 55278323 AC Cable by Southwire. $60.73. AC 90 steel armored cable is black striped color coded. Flexible and efficient, no couplings or elbows needed. Copper conductors are THHN 90 C. rated. 16AWG internal bonding wire and the outer armor form the grounding path. Anti short bushings included. Permitted for branch circuits and feeders on both exposed and concealed work. Dry locations only. UL listed.. Save 12%!