Gfci breaker

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nickelec

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Have any of you ever had a problem with a 2 pole gfci breaker feeding a MWBC

I have a two pole gfci breaker feeding a MWBC 12/3 tripping when I plug almost anything in I'm thinking because it's only seeing the one neutral current

I was thinking to put a jumper across the neutral connection have any of you guys seen this before



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nickelec said:
Have any of you ever had a problem with a 2 pole gfci breaker feeding a MWBC

I have a two pole gfci breaker feeding a MWBC 12/3 tripping when I plug almost anything in I'm thinking because it's only seeing the one neutral current

I was thinking to put a jumper across the neutral connection have any of you guys seen this before



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You most likely have a parallel neutral path.
Un-land the 12/3 from the breaker and test ohms from the white to the neutral bar.
I have had that happen before, easy mistake somone ties all the neutrals together in a j box.
 
Sorry mis understood you. I did that already I took everything apart neutral is good not grounded , when I out both ungrounded conductors together on one side of the breaker it works perfectly

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nickelec said:
Sorry mis understood you. I did that already I took everything apart neutral is good not grounded , when I out both ungrounded conductors together on one side of the breaker it works perfectly

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Now thats interesting, tell us more about the circuit, what is it serving?
 
If you unland one of the hots, say the red, power on the white-black receptacle with a load do you read any voltage on the red?
 
I haven't tried that yet I will trouble shoot further next time I go back and update

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nickelec said:
I haven't tried that yet I will trouble shoot further next time I go back and update

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Its not a phase to phase fault or the breaker would not even power on.
Thats a good mystery.
My guess is a loose neutral connection or mis-wired receptacle.
 
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