Timeline for GFCI's on BLACK/RED dual 15-amp circuits
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Mar 11, 2020 at 15:49 | history | edited | SteveSh | CC BY-SA 4.0 |
Summary of final resluts
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| Mar 2, 2020 at 10:42 | vote | accept | SteveSh | ||
| Mar 2, 2020 at 2:09 | comment | added | George Anderson | No problem SteveSh. The term "tandem breaker" has a specific meaning as they tap power from the same buss (phase). Using them to power a MWBC is dangerous. Glad you clarified this. But others here have given better answers: A GFCI protected 15 amp double pole breaker is your best bet. But if it trips, it will mean a "trip" (no pun intended) to the main panel to reset. That's why I like GFCI outlets instead as outdoor outlets often trip without a good cause. Yeah, they are more prone to failure outside, but it's a trade off. | |
| Mar 2, 2020 at 2:01 | comment | added | SteveSh | @George Anderson - It's a true double pole breaker, with each side taking power from a different input phase. If that's different than a tandem, I apologize. | |
| Mar 2, 2020 at 1:14 | answer | added | Todd W | timeline score: 0 | |
| Mar 2, 2020 at 1:03 | answer | added | Harper - Reinstate Monica | timeline score: 3 | |
| Mar 2, 2020 at 1:00 | history | edited | Machavity | CC BY-SA 4.0 |
Added relevant tags
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| Mar 2, 2020 at 0:56 | answer | added | Ecnerwal | timeline score: 1 | |
| Mar 2, 2020 at 0:55 | comment | added | George Anderson | Is this a true double pole breaker that takes up 2 spaces? Or a tandem breaker (2 small switches that takes only one space in the panel? If one space you can't do it safely...both breakers will take power from the same phase and overload the neutral. If 2 spaces, it should work fine. Each individual GFCI breaker measures the power going out and the power returning, any tiny variation will cause them to trip. Just because that return current goes to the other phase via the neutral shouldn't cause any problems. I've wired MWBC the same way and it's fine. | |
| Mar 2, 2020 at 0:47 | history | asked | SteveSh | CC BY-SA 4.0 |