Have a haas SMM2 ordered getting my ducks in a row. Ordered a American Rotary ADX30. I am really taken aback by the min wire size for the 3 Phase inverter.

American rotary states that the minimum wire size is 1 AWG

Checking the ampacity on that brings up 130 amp breaker. Seams like MASSIVELY overkill but anyone else want to weigh in on this??

What are you guys running?

Also American rotary also states furthor down in the manual that:
It is important to have adequate single-phase electrical service. The actual single phase current that will flow through the converter is approximately 1.73 times the three-phase current. The National Electric Code requires 2.5 times the three-phaseloadcurrent to allow for starting current and a margin of safety. This is a good conservative calculation to determine your single phase branch circuit wire size and breaker size.
Haas dictates that the machine needs a 40 amp 3 ph service. That means from what i can see that I should be able to get away with a 100 AMP breaker and i beleive 3 awg wire (if i recall)

Just trying to avoid putting a breaker over 100 amp and dealing with 1 awg wire is always a joy.

any input is appreciated