Multi-wire branch circuits Post author:Jake Post published:August 6, 2012 Post category:Code Change of the Week Post comments:0 Comments When sharing the Neutral of a multi-wire branch circuit, the circuit breaker has to be common trip. Single phase, Three phase circuits now require a 2 pole or three pole circuit breaker. You Might Also Like 404.22 Electronic Lighting Control Switches. March 31, 2019 680.14 Corrosive Environments around pools 2017 Code Change December 30, 2021 Code Change 450.11 (B) Source Marking March 4, 2018 Leave a ReplyYou must be logged in to post a comment.