I have a 200A panal in my house and would like to put a 200A sub in my barn. I know seimans dont make a 200A 2pole breaker. Is there a lug kit i can put in this panal to feed the sub? Any other options?

Harlie, contact a local Electrician, they will be able to help you.

Roger

harlie, why not put a seperate meter on the barn? copper is pretty expensive for a 200 amp feed,unless it's real short. but as roger said please contact an electrician

What kinds of loads will there be in the barn?

I can't think of a reason that you would want to put in a 200A subpanel fed from a 200A panel.
If your load in the barn is that great, chances are you would need to upgrade the service at the house.
I don't know if it's an alternative, but will the PoCo give you a separate service at the barn?

I'm guessing that Harlie has, or has his eye on, a "200A panel", and figures that he needs to supply it with a 200A supply.

Harlie, that's not necessary. Your supply needs to be sized according to the load calcs in the Code, which will almost certainly be less than 200A. It is very likely you can feed your 200A panel with a 50-100A feeder.

[This message has been edited by SolarPowered (edited 12-13-2006).]

"seimans dont make a 200A 2pole breaker."

They don't?!? http://www.sea.siemens.com/resident/images/Circuit%20Breaker/Q2200B.jpg
http://www.sea.siemens.com/resident/images/Circuit%20Breaker/MBK200A.jpg

http://www.sea.siemens.com/resident/images/Circuit%20Breaker/QN2200.jpg

http://www.sea.siemens.com/resident/images/Circuit%20Breaker/QN2200R.jpg

Edit due to pic's being so big you could see the finger-prints of the photographer.....



[This message has been edited by e57 (edited 12-13-2006).]

All panels have a "per stabb" rating on the inside of the cover. A 200a panel usually has a max of about 70a per stabb. You can't run a 200a circuit from a 200a pqnel. Check the "per stabb" rating on the panel.

Eddy
Wouldn't that make the 80 - 125 amp plug on breakers useless?

Eddy I have never seen a per stab ratting as low as 70.

I have seen 100 per stab but that does not prevent larger breakers.

A 2 pole 150 amp breaker for a 200 amp panel will use two stabs per phase.

Could this "stab rating" be a Canadian requirement that is not a requirement in the states, like the shielding over the primary conductors in panels?

Roger

panels have different stabb ratings, sorry, they're not all 70amp. Either way you could not have a 200a dp circuit coming from a 200a panel. (unless the panels per stabb rating alows it)


[This message has been edited by Eddy Current (edited 12-14-2006).]

Eddy A typical 200 amp panel with a 100 amp stab rating can legally be equipped with 200 amp breaker assuming it is allowed by the manufacturer.

They get around the 100 amp per stab rating by using 2 stabs per phase.

If the breaker was for example installed at the top it would use circuit positions 1,3, and 2,4.

The large breakers in Siemens panels are a parallel 2-pole degign. They take up 4 spaces and look like a 4-pole breaker.

EDIT: Just like iwire said


[This message has been edited by u2slow (edited 12-14-2006).]

Eddy, SQ D QO 200's are the same.



Roger

Ok, I've seen a few of those - Always wondered why they were like that. Thanks guys for clearing that up for me.

I don't have any links, but cutler hammer makes a 200 amp rated lug kit for their BR series panels. I've bought a few in the last few years.

So does Siemens and Murray (Same company)...

I have seen several panels with 70 per stab ratings, but most were older models, not many have that restriction any more, for whatever reason.

U2Slow:

You sure that's not just a Siemens main breaker? That's the same arrangement that GE uses for their mains in their TM series panels. How would you handle the load connection if this breaker was plugged onto the regular bus bar? Parallel #6 conductors to the load? I don't think so.

Those four-pole breakers are for specially-designed main breaker mountings only. They have factory bus bar extensions or adapters to fit into the lugs of the breaker. Also, unlike in a regular panel where adjacent poles are on different legs, the four-pole mains are configured with the two poles on the left being on one leg and the two on the right being on the other.

The breakers like the Square D and Siemens ones that Roger and E57 posted illustrate the true four-pole breakers. They are also available (or were) available from C-H the last time I checked. They take up two poles on the left AND right side, so technically they are still occupying four full pole spaces.

I have also seen 70 amp stabs, but usually in panels that have spaces designed to accept piggyback breakers at the bottom. Since the stab isn't full-size so that piggybacks will only fit where they belong, their rating isn't as high as the full-size spaces.

[This message has been edited by EV607797 (edited 12-14-2006).]