Eaton faz series miniature circuit breakers c type 3 pole eaton 278877 this 3 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 278877 faz c403 miniature circuit breaker 40a c type tp 15ka