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 210.52 (A) (2) (1) WALL SPACE April 24, 2016 406.9 (C) Bathtub and Shower Space. Exception #2 July 7, 2024 New Code change to 240.87 Arc Energy Reduction September 3, 2018 Leave a ReplyYou must be logged in to post a comment.