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Joined: Dec 2000
Posts: 4,289
Member
OK, my butt's in a sling.
Had an existing SqD panelboard.
I think we discussed this here before, but I can't find it here or in the listings.
Aren't the QO C/B's rated for 2 wires terminated per breaker?
(Conductors are the same size, 20A C/B,#10)
Local AHJ wants me to prove it, but I'm fairly sure he would listen to a consensus [Linked Image]

[This message has been edited by electure (edited 04-23-2002).]

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Joined: Apr 2002
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B
Moderator
Wire range and count used to be on a sticker just to the side of the termination. Show him one of the QOs--unless they've really changed, it looks pretty obvious.

Joined: Apr 2002
Posts: 2,527
B
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See: http://ecatalog.squared.com/catalog/html/sections/01/17201002.htm#999119

"Circuit Breaker Wire Sizes QO
1 Pole
10-30 . . . (2) #14-10"

and maybe: [img]http://67.115.161.42/images/httpsq.htm[/img]



[This message has been edited by Bjarney (edited 04-23-2002).]

Joined: Oct 2000
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Bjarney,

Beat me to it!

Look here: (check Footnote 'c') http://ecatalog.squared.com/catalog/html/sections/08/17208010.htm

Bill


Bill
Joined: Dec 2000
Posts: 4,289
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Gee, guys!
Thanks! The answer was in my hands!
You're the best...S [Linked Image]

Joined: Mar 2001
Posts: 2,056
R
Member
The QOs usually have this information embossed on the side of the breaker.
Some of them have a sticker on the front.

BTW,
Whats with footnote "d" on Bill's link?

[This message has been edited by Redsy (edited 04-24-2002).]

Joined: Oct 2000
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Redsy,

I have heard that before. (not the distance figure though) It has to do with the characteristics of the cable itself possibly having enough total (apparent or real?) leakage in it overall to be past the limit allowed by the GFCI.

Bill


Bill
Joined: Dec 2000
Posts: 4,289
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I went through the Van stock.
Curiously enough, I found a QOB rated for 1 CU or Al #10-14, a QO rated for 1 or 2 CU or Al #8-14, and several QOB rated 1 or 2 CU or Al #10-14. All are recent enough to have the little "red flag" indicator window for tripped condition.
I love the consistency! [Linked Image]

Joined: Jul 2001
Posts: 599
J
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Stop re-using those ancient breakers.

The little red flag indicator was added to the Square D QO line of devices around the mid-1960s (my 1967 catalog shows it). These early breakers had a box lug and so were rated for only 1 wire.

By 1975, they had switched to the current pressure-pad lug which accepts 2 wires on the 10-30A 1P non-GFI devices.


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