[RE-wrenches] Multiple wires on Breakers

[Glenn Burt]

Table from the Square D catalog for QO breakers shows a very limited number
of breakers/wire sizes that can be double lugged.

-Glenn

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Ray Walters
Sent: Monday, February 04, 2013 6:20 PM
To: RE-wrenches
Subject: [RE-wrenches] Multiple wires on Breakers

Greetings wrenches;

I just watched a video from Midnite Solar, where they avoided double lugging
a breaker by using uninsulated ILSCO taps.  I've used these taps before as
well, but never felt it was an optimum solution, as it leaves quite a bit of
uninsulated metal in close contact with the adjacent pole ( on a 2 pole
breaker)  I was also under the impression that some breakers were rated for
2 wires, such as Square D QO,and QOU breakers.
My question is this:  are any breakers actually rated for 2 wires, and if so
any that are used in the solar industry?  I know that stud type breakers
(like Outbacks) can have multiple lugs on the same stud, or use a double
barrel lug.

Thanks for your help,

Ray Walters



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