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Wade Lippman Wade Lippman is offline
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Default Breaker on #6 copper


"Doug Miller" wrote in message
.. .
In article , "Toller"
wrote:
I am putting in a subpanel for my workshop. I need another 240v line, so
I
am ripping out the two 120v lines and the 240v line I have already put in
and replacing them all with a subpanel. Wish I had done it right the
first
time, but that boat has sailed.

I am running #6 copper. As I read it, it is good for 55a, and since
there
is no 55a breaker, I can use a 60a. Is that correct?


Correct; this is specifically permitted under Article 240.4(B).

On the other hand; the most I will ever ever use at one time is a bandsaw
and DC, which draw 27a together (which is why I need another 240v). I
happen to have a 30a breaker. Any reason not to just use that? It is
over
the 80% rule,


Remember that the "80% rule" applies only to circuits serving a continuous
load, which is defined as "a load where the maximum current is expected to
continue for three hours or more." [2005 NEC, Article 100]

No, I can't see ever running the bandsaw for 3 hours. Thanks