Eaton faz series miniature circuit breakers c type single pole eaton 278555 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 278555 faz c61 miniature circuit breaker 6a c type sp 15ka