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 210.7 Code Change, 240.15(B)(1) Added clarification. March 22, 2016 230.67(A) Surge-Protection Dwelling units September 2, 2023 555.3 Electrical Datum Plan Distances January 5, 2025 Leave a ReplyYou must be logged in to post a comment.