20 amp3 phase breaker.

[techniphase]

so far i havnt been able to locate an exception for "not" doing this. Is it safe to use a 3 phase breaker for a 220/20 amp outlet - (a/b phase). and also use the c phase on the same breaker for the 120v 20 amp outlet? both circuits with a dedicated neutral.

 

[raider1]

Welcome to the forum.

I have moved this post to it's own thead so it doesn't hyjack the original thread as well as providing more views.

Chris

 

[infinity]

Seems fine to me as long as you don't mind both loads going off at the same time for maintenance or if one trips.

 

[charlie b]

I agree with Rob. Not a good design, because of maintenance constraints, but not unsafe, and not a code violation.

Welcome to the forum.

 

[jwjrw]

could an inspector claim 110 due to the common use for a 3pole breaker is for a 3pole equipment?

 

[jim dungar]

could an inspector claim 110 due to the common use for a 3pole breaker is for a 3pole equipment?

All UL489 multi-pole breakers are tested for 1 pole operation.

 

[ceb58]

could an inspector claim 110 due to the common use for a 3pole breaker is for a 3pole equipment?

Would be no different than a 4 wire mwbc 3 hots 1 neutral

 

[Cow]

Do it.......