kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
I can't think of a load center where if you handle tie the single pole breakers or install a double you will feed off the same phase, therefore the code revision requiring handle ties on MWBC resolves this problem.
Generally true, there are instances where you have just a two wire (120 only) supply in which case you can not utilize a true multiwire branch circuit, but some may try anyway because they don't fully understand a MWBC. Also you could install a three pole breaker in a single phase panel and have two lines the same "phase", but those that don't understand are also likely to balk at the cost of a three pole breaker and will not purchase one, but maybe just happen to have one on hand for some reason.