What is the total load connected to your PCC panel.?
What are the load that connected to your PCC panel.?
What is the incoming Voltage of your PCC panel.?
What is the total current consumption of your PCC panel.?
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Management is just like a bunch of Monkey sitting on a tall tree. Some climb to the highest branch and some at the lowest branch. The highest Monkey look down and see a lot of happy faces but the lower Monkey looks up and see nothing but all the....
Contact the original equipment manufacturer and obtain a 1:1 replacement.
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"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Seriously, stop trying to save 5 cents & go & ask a consultant. There are far too many unknowns in your question/situation in order to be able to safely & satisfactorily answer your question on the internet.
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"If you try to keep a leg each side of a barbed-wire fence, you'll do yourself a mischief." - Joh Bjelke-Petersen.