Eaton faz series miniature circuit breakers c type single pole eaton 278553 this single pole c type miniature circuit breaker from the eaton faz series is ideal for use where operational current peaks and other surges occur that must not lead to tripping it is particularly suitable for use with switchgear in industrial and advanced commercial operations eaton 278553 faz c41 miniature circuit breaker 4a c type sp 15ka