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 Air-Conditioning and Refrigerating Equipment 440.9 Grounding and Bonding September 5, 2021 Receptacle Replacement 406.4 (D) Arc Fault Circuit Interrupter April 10, 2016 555.3 Ground fault protection Code Change 2017 NEC October 31, 2021 Leave a ReplyYou must be logged in to post a comment.