rszimm
Member
- Location
- Tucson, AZ
Can I put both line-neutral AND line-line loads on a single MWBC. Got a home shop that needs 120V and 240V receptacles throughout. Some of the equipment (e.g. band saws, table saws) runs on 240. Some runs off 120. Generally no two pieces of equipment will be on at the same time. Thinking about putting a single MWBC to power it. 2017 NEC. 210.4.C says "MWBC shall supply only line-neutral loads", but exception 2 says "When all ungrounded conductors of the MWBC are opened simultaneously by the branch-circuit overcurrent device". Given that 210.4.B already requires that all ungrounded conductors be simultaneously disconnected, isn't 210.4.C completely moot/irrelevant?