Product description:
Square D MasterPact MP12H1 Circuit Breaker; 1200 amp, 600 volt AC, 3 pole, electrically operated (E/O), draw-out (D/O). With STR 58 U trip unit, LSI functions, 1200 amp rating plug- cat # 54750. Used tested with a one year warranty.
MC-CB# 2131 -- LOC: B6I/J3
MC-CB # 2132 -- LOC: B6I/J3