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-   -   counting circuits in breaker box (http://www.diychatroom.com/f18/counting-circuits-breaker-box-16109/)

donaldbyrd 01-24-2008 10:38 PM

counting circuits in breaker box
 
When you are counting the number of circuits in a breaker box do you count the 220 circuits as one or two?

TheSiege 01-24-2008 10:40 PM

2, they use 2 breaker openings and take up 2 120 circuits. what are you counting them for?

donaldbyrd 01-24-2008 10:41 PM

the max the box will hold is 42

TheSiege 01-24-2008 10:47 PM

then yes, 220 is considered 2

Speedy Petey 01-25-2008 07:06 AM

Quote:

Originally Posted by donaldbyrd (Post 91760)
the max the box will hold is 42

For your panel all this means is that you CANNOT use any twin (or skinny, or half sized) breakers.

A 40/40 panel will hold 40- 1" full sized breakers, with two pole breakers taking up two spaces.

A 20/40 can take 20- 1" breakers or up to 20 twin breakers.

Get it?

donaldbyrd 01-25-2008 08:08 AM

got it

donaldbyrd 01-25-2008 01:20 PM

my box actually has 30 slots does that mean I can or cannot use the 1/2 breakers?

donaldbyrd 01-25-2008 01:59 PM

just to clarify I have 30 slots but cannot determine how many circuits I can have. It is a CTL panel board.
hopefully one of these are the model and someone can help:
ch7jj
30-4629
c-373
30-5143

HouseHelper 01-25-2008 02:33 PM

What brand panel is it?

donaldbyrd 01-25-2008 05:03 PM

cutler hammer

Speedy Petey 01-25-2008 05:04 PM

What size? 100A, 150A, 200A?

donaldbyrd 01-25-2008 05:09 PM

main is 200a I cannot find a rating on the box

nap 01-25-2008 05:16 PM

just a wild guess but from the model number, I wwould say it max's at 30 circuits.

I'll have to try to look it up later when I have more time.


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