Technical FAQs

Ask a Question

Must a common trip breaker be used for all multiwire branch circuits to shut off all of the phase conductors?

Can multiwire branch circuits be protected by single pole breakers with handle ties that are not common trip?

Product Line:
Miniature Circuit Breakers

Multiwire branch circuits that supply switches, receptacles, or equipment on the same yoke must be provided with a means to disconnect simultaneously all ungrounded conductors that supply those devices or equipment at the point where the branch circuit originates [210.4(B) and 210.7(B)].
Was this helpful?
What can we do to improve the information ?