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Originally Posted by dez250
It is and it is not a form of isolation. The way its a form of isolation is it is "isolated" from the frame but then its also not a form of isolation due to the constant flow of electricity right next to it. The point of the distrib. block is to have the center empty with common on one side and hot on the other. The ground stud is to place a common central ground area on the bot which comes directly from the batteries common terminal post.
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That same Distribution block is used in everyday 3 PHASE power applications. It's not designed to always have the center empty, sorry but why would they design it like that?
It's rated to handle any and all equal current as the outer lugs.
Allen Bradley's Mini Power blocks are rated up to 115 AMPS
http://www.ab.com/industrialcontrols...owerblocks.pdf
I am just trying to find out where it says we are required to use the ground lug, when in fact the distribution block is the same if not better.