shared neutral for 2 GFI outlets
- Thread starter Larry5632
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emf10
Member
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- Southeast PA
It should work.
gar
Senior Member
- Location
- Ann Arbor, Michigan
- Occupation
- EE
090517-0907 EST
Larry5632:
Why did you ask the question?
Was it code related?
Was it relative to the function of the GFCI?
If you put a good 120 load on one of the receptacles it should not trip.
The same for the other circuit.
If you connected a good 240 load to the two hot outputs, then one or both GFCIs will trip.
The word good above means no leakage current to ground or somewhere else.
Your common source neutral must go to the input neutrals of the two GFCIs. You can not feed the second GFCI from the neutral output of the first GFCI.
.
Larry5632:
Why did you ask the question?
Was it code related?
Was it relative to the function of the GFCI?
If you put a good 120 load on one of the receptacles it should not trip.
The same for the other circuit.
If you connected a good 240 load to the two hot outputs, then one or both GFCIs will trip.
The word good above means no leakage current to ground or somewhere else.
Your common source neutral must go to the input neutrals of the two GFCIs. You can not feed the second GFCI from the neutral output of the first GFCI.
.
gar
Senior Member
- Location
- Ann Arbor, Michigan
- Occupation
- EE
090517-1123 EST
I should have written this statement without the use of "first" and "second" because it implies a serial connection.
You can not use the output neutral terminal of one GFCI to connect to either the input or output neutral terminal of the other GFCI in this application.
If you had a single circuit, then you could cascade one GFCI from the other. This would be a series connection using the output terminals of a first GFCI to feed the input terminals of a second GFCI. However, this would be a bad idea because tripping of the first GFCI would remove power from the second GFCI. Further it increases the power dissipation in the first GFCI resulting from load on the second GFCI.
.
I should have written this statement without the use of "first" and "second" because it implies a serial connection.
Instead this might be a little better description:
You can not use the output neutral terminal of one GFCI to connect to either the input or output neutral terminal of the other GFCI in this application.
If you had a single circuit, then you could cascade one GFCI from the other. This would be a series connection using the output terminals of a first GFCI to feed the input terminals of a second GFCI. However, this would be a bad idea because tripping of the first GFCI would remove power from the second GFCI. Further it increases the power dissipation in the first GFCI resulting from load on the second GFCI.
.
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