transman2
Senior Member
- Location
- Brooklet,Ga.
if I have 3 GFI circuits how many neutrals do I need. Can you share a neutral with 3 GFI circuits.
3 GFI circuits
- Thread starter transman2
- Start date
- Status
- Occupation
- Licensed Electrician
A two pole gfci breaker can share a neutral. I've never seen a three pole gfci breaker.
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
I found a 50A Sq D QO GFCI breaker for 429.00$ if you are interested.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
The only way to buy those (new from a distributor anyway) if you want a really good price is to throw one in with other items on a job quote, of course you have to buy all the items on the quote as well.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
If you share the neutral on the line sides there is no issue. For instance, run a full boat to a jb and then have 3 circuits come off that to 3 gfci receptacles
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
Prolly a way cheaper option than the 3 pole GFCI breaker also.
JFletcher
Senior Member
- Location
- Williamsburg, VA
Full boat? I assume that means 3 ungrounded conductors (one from each phase), one grounded, one grounding?
A full boat is 3 of one kind and 2 of another.
What you described would simply be 3 of a kind.
JAP>
JFletcher
Senior Member
- Location
- Williamsburg, VA
A full boat is 3 of one kind and 2 of another.
What you described would simply be 3 of a kind.
JAP>
I'm quite familiar with the poker definition, just never heard it applied to wiring. How *would* it apply as Dennis mentioned? 3 hots, a neutral, and a ground is the minimum needed for a 3 GFCI outlet setup from a 3ph panel isnt it?
- Occupation
- Licensed Electrician
Three hots and a neutral would be a full boat, also called a round house on some crews.
Exactly, though the ground is incidental since it is not really part of the circuit. In NEC parlance, it's a MWBC.
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
In electrical, the term full boat has the meaning of all ungrounded and the corresponding neutral. So for single phase 120/240 it would be three CCCs. For three phase it would be four CCCs. And for balanced two phase, where it existed, it would be four hots and a neutral.
As mentioned, an MWBC for whatever the supply scheme was.
As mentioned, an MWBC for whatever the supply scheme was.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Be careful-- a full boat doesn't necessarily mean 3 current carrying conductor in single phase or 4 in 3 phase. The neutral may not count as a current carrying conductor
Full boat
single phase--2 hots & one neutral
3 phase-- 3 hots & one neutral
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
In the game of poker there is no full boat, unless there is some using that as a slang term, it is a full house.
Seems it would just be easier to call it what it is. A multi-wire branch circuit.
JAP>
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