Siemens low voltage residential circuit breakers main breakers – family G mains are circuit protection load center mains, feeders and miniature circuit breakers. load center conversion kit 1-Phase main breaker. Reviews There are no reviews yet. Be the first to review “Siemens 125 amps Standard 2-Pole Circuit Breaker” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.