The Midnite Solar MNPV6-250 Busbar is1/8" thick tin plated copper which accommodates up to three 300VDC MidNite circuit breakers. The Midnite Solar 300V circuit breakers have input and output connections on the top surface. Please note that these busbars are not for use with 150VDC breakers or the touch safe fuse holders. Current rating is 168 amps. 2/0 box lug and hardware is included.