Gentlemen,
Are we not technically bound by section 110-14c to using the 60 degree rating of the conductors for circuits rated 100 amps or less, or marked for #s 14 through #1 conductors, unless that we can prove that every last termination involved is rated for the higher temperature?
I was told that the large 40 C stamp that you see on the side of some breakers is not the actual rating of the termination. If you notice, most of these breakers also state that they are suitable for use with 60 C or 75 C rated conductors. It sure would be nice to get this clarified.
Matt
