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Ignoramus12500 Ignoramus12500 is offline
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Default Breaker on #6 copper

On Sat, 04 Aug 2007 13:55:20 GMT, 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?


Yes, it is correct.

I did the same thing, ran a 60a circuit to my garage, and I regret to
this day that I did not make it a 100A circuit.

Spend a few more bucks and get a 100A circuit. You can then buy some
large equipment (welding, plasma cutters) and run them inexpensively.

i

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, but I presume that applies to the wire rather than to the
breaker. If it trips, I can always replace it.

The #6 was only a few dollars more than the #8; so what the heck...