Eaton / Cutler Hammer Plug on Circuit Breaker Eaton / Cutler-Hammer Plug on Circuit Breaker, its compact and easy to install, two pole circuit breaker features thermal magnetic molded case for extra protection, circuit breaker has a current rating of 70 amp and voltage rating of 120/240 voltage AC, it is a common trip breaker that has AIC rating of 10 kilo amp and accommodates copper/aluminum wire of size 4-1/0 AWG, circuit breaker is UL 489 listed and CSA certified.