[MJenne]

Trying to put together my parts list for my project, and I have some questions about wire sizing.

Circuit #1

I plan on putting a 100A breaker in my main panel ( Eaton BR2100 ). This breaker is rated to accept wire sizes from #8 - 1/0 AWG @ 60C or 75C.

The wire will run into an Eaton panel rated for 150A (BR3030B150R), and has a main breaker that accepts wire sizes #2-300kcmil @ 60C or 75C.

This circuit will be L1 + L2 + N + G

I plan on using #2 AWG XHHN-2 Al wire for L1+L2+N
I plan on using #4 AWG XHHN-2 Al wire for G

The wires are all black, so I will identify N & G with white & green tape wraps respectively.

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Circuit #2

I plan on putting a 100A breaker into the main panel, same specs as above

This circuit will go into a UPS. The UPS documentation states the full load current is 80 amps, and suggests protection with a 100A breaker and the use of #2 AWG wire.

This circuit will be L1 + L2 + G

I plan on using #2 AWG THHN Cu for L1 + L2 -> wire is black
I plan on using #8 AWG THHN Cu for G -> wire is green


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Do those wire sizes look adequate?

Also, is there anything wrong with using an outdoor rated panel indoors? I will be surface mounting this panel, and the painted gray look of the outdoor panel looks better, and is only about $25 more for the size I'm working with.

Thanks in advance!
Mike J