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Old 01-07-2010, 11:29 AM   #1
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wiring new GFCI breaker question


Hello DIY -

I am adding in a new 20amp circuit to my panel. This is for my garage and I will be using a GFCI breaker. My question is about wiring the breaker as the instructions are not very clear.

What I believe needs to be done; Is this correct?
  • I'll run 12/2 romex for this line to the panel
  • White and Neutral from the line attaches to the Neutral Bus Bar
  • Black (hot) wire attaches to the GFCI breaker
  • Curly white wire from GFCI breaker installs to the Neutral Bar
There is a second spot on the GFCI for another wire, what goes here? Do I pigtail the white from the line then attach to the bus bar?

Thanks everyone!
wiring new GFCI breaker question-gfci-breaker.jpg
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Old 01-07-2010, 11:43 AM   #2
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wiring new GFCI breaker question


The white from the 12/2 wires into the breaker, the curly white from the breaker wires to the neutral bar, and the black from the 12/2 wires to the breaker.
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Old 01-07-2010, 11:48 AM   #3
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wiring new GFCI breaker question


Quote:
Originally Posted by dgates12 View Post
Hello DIY -

I
What I believe needs to be done; Is this correct?
  • I'll run 12/2 romex for this line to the panel
  • White and Neutral from the line attaches to the Neutral Bus Bar
  • Black (hot) wire attaches to the GFCI breaker
  • Curly white wire from GFCI breaker installs to the Neutral Bar
There is a second spot on the GFCI for another wire, what goes here? Do I pigtail the white from the line then attach to the bus bar?
NO.
Your white wire on your 12/2 attaches to the other spot on your GFCI breaker.
The white wire from the breaker attaches to your neutral bar.
The white wire from your 12/2 is your neutral wire (grounded Conductor) the bare wire is your equipment grounding conductor.
Are you in a main panel or a sub panel?
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Old 01-07-2010, 11:48 AM   #4
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wiring new GFCI breaker question


Thanks JB.

Why couldn't the darn instructions that were packaged inside have been that simple?!?
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Old 01-07-2010, 11:50 AM   #5
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wiring new GFCI breaker question


It's the main panel Codeone.

Thanks for the reply.
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Old 01-07-2010, 11:52 AM   #6
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wiring new GFCI breaker question


I should have looked at your pic closer would have known. In the main the grounding conductor and the grounded conductor(neutral) are tied together, in a sub panel they are seperate.
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Old 01-07-2010, 12:00 PM   #7
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wiring new GFCI breaker question


Uh-oh Codeone, you may have lost me on that one. It sounds like your answer varies from what JBfan replied earlier or am I spacing out here?
  1. 12/2 ground {copper wire} --> to neutral bar (check)
  2. 12/2 hot {black wire} --> to GFCI breaker (check)
  3. Curly wire from GFCI breaker --> to neutral bar (check)
  4. 12/2 neutral (white wire} --> to GFCI breaker or pigtailed to neutral bar (umm??)
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Old 01-07-2010, 12:12 PM   #8
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wiring new GFCI breaker question


No JBfan is right the 12-2 white wire goes to the other slot on the breaker.


The White wire on the 12-2 is a grounded conductor or better known as a neutral. It does carry current.

The ground wire only goes to the neutral bar in a main panel.
If this was a sub panel the ground would go to the ground bar not the neutral bar.

The difference is grounded conductor= neutral.
The ground conductor is for equipment grounding and never carries current under normal conditions.

The grounded conductor (neutral) almost always carries current.
Therefore neutral is not a good name for the conductor but hte most common used.
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Old 01-07-2010, 12:14 PM   #9
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Gotcha...thanks!
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