The Square D by Schneider Electric Ground Bar Kit is an important accessory in your home or business electrical load center. The aluminum 23 terminal ground bar kit is used in Square D load centers, CSED devices and NQOD and NF panel boards. The kit has 23 terminals, each accepting (1) #14 – #4 copper wire or (1) #12 – #4 aluminum wire, or (2) #14 – #12 copper wire or (2) #12 – #10 aluminum wire.