Square D PK7GTACP Ground Bar Kits, Aluminum, 7 Terminals | Used in load centers, CSED devices and NQOD and NF panel boards. Each terminal accepts one #14 - #4 copper wire or one #12 - #4 aluminum wire, two #14 - #12 copper wire or two #12 - #10 aluminum wire. ANSI certified and UL listed.