Residential Electrical Panels

[m_herrera202]

How many spare breakers can I have inside a residential panel or load center.

 

[electricman2]

As many as the number of spaces available.

 

[480sparky]

And as many as you can afford.

 

[celtic]

How many spare breakers can I have inside a residential panel or load center.

That depends....
- how many spaces are there to begin with?
- how many spaces are you using?
Subtract the two, and that leaves you with the number of available spaces for spare breakers.
It is up to you - or the customer - to decide if you want blank spaces or spare breakers ..or a combination of spaces and spares.

:grin:

 

[JohnConnolly]

All but one?

 

[mdshunk]

I must ask why you feel the need for spares in a resi panel? It's pretty common to load up a commercial panelboard, and even MDP's with spares. It's almost never done in resi, unless you accidentally knockout a panel cover knockout, then it's sometimes quicker or easier to just click a spare breaker in that slot.

 

[wbalsam1]

All but one?

:grin: :grin: Very good answer! :wink: (or is it a question?):-? :grin:

 

[bkludecke]

My vote goes for the number and type of C/Bs shown on the panel label/listing info.

 

[Dennis Alwon]

How many spare breakers can I have inside a residential panel or load center.

I am not sure if you are asking what the maximum number of breakers one can have in a panel? 42 would be that answer but all residential panels seem to only have 40 circuits. At least for now in the 2005 code. Art 408.35

 

[Dennis Alwon]

It appears the entire article mentioned above --- art.408.35 is no longer in the 2008 code book.

 

[eric stromberg]

Quote: "A research team proceeded toward the apex of a natural geological protuberance, the purpose of their expedition being the procurement of a sample of fluid hydride of oxygen in a large vessel, the exact size of which was not specified.."

"Jack and Jill..."

 

[Dennis Alwon]

Quote: "A research team proceeded toward the apex of a natural geological protuberance, the purpose of their expedition being the procurement of a sample of fluid hydride of oxygen in a large vessel, the exact size of which was not specified.."

"Jack and Jill..."

You are on a roll-- here try these out from my site-- you should have no trouble with them
http://members.aol.com/loveandlilies/NurseryRhymes.htm

 

[Brady Electric]

Residential Electrical Panels

My vote goes for the number and type of C/Bs shown on the panel label/listing info.

I agree. Always check what the panel label listing says. They make 20/40,30/40 and so on. I like to use a straight 40 circuit panel in residential work because of the space it give you. If I have a situation that a large 40 circuit panel looks bad then I would use a 30/40 which is much smaller.
Semper Fi. Buddy

 

[ItsHot]

number of breakers

number of breakers

I have heard that the '08 Code was going to lift the maxium number of circuits(42) in a panel. I have not yet purchased a new code book. Bring on the "piggy-backs"!!

 

[don_resqcapt19]

I have heard that the '08 Code was going to lift the maxium number of circuits(42) in a panel. I have not yet purchased a new code book. Bring on the "piggy-backs"!!

The code rule won't change anything...until the listing for the panels is changed.
Don

 

[got_nailed]

What would the cost be for a piggy back 15 amps GFCI or arc fault? That would be tight on the wiring.

With a good portion of the breakers being arc fault and GFCI how bad would the heat get in the panel board? This is off the way I read the 2008 there will be more of them the normal breakers.

 

[LarryFine]

Bring on the "piggy-backs"!!

Seems to me that lifting the restriction should reduce the need for tandems, not increase it.