Re: where to get copper buss bar and terminal covers?
If You start with 1/16" x 1" and double it, the 1/8" x 1" stacked size is worst than 1/16" x 2" side by side, even though it is the exactly same amount of copper.
The ability of dissipating heat is more important than the actual gauge of the buss, similar to how battery cables should be sized.
Since there are so many different enclosures being used on top of these bussbars, looking at your sustained current use and the the chart I linked will help make sure it is sized correctly.
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