Is there a publication that explains how much a ul listed product can be changed and not violate the listing?
I can add breakers to a loadcenter - can I change the lugs, add fingers, tap the buss?
The second question is just an example, please answer the first question.
I can add breakers to a loadcenter - can I change the lugs, add fingers, tap the buss?
The second question is just an example, please answer the first question.