Square D ground bar kit. For use in Square D load centers, CSED devices, and NQOD and NF panel boards. Each terminal accepts (1) #14 to #4 copper wire, (1) #12 to #4 aluminum wire, (2) #14 to #12 copper wire, or (2) #12 to #10 aluminum wire. WARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov - Lead