I purchased a set of four of the seimens 65 AIC breakers picked up from HD yesterday since my 4 dedicated line project is in midstream. Thanks for the link. They certainly make other thermal breakers seem like child’s play based on mass and overall construction quality. They were about four times the mass of the heaviest ones available off the shelf. Square D or Siemens residential quality . Interestingly I found this Shunyata Research article on power. It is the best read I found yet that assembles all points in one place.
They seems to recommend Hydraulic Electromagnetic circuit breakers. However I failed to find any that clip onto the bus bar like the Siemens does for my main panel design which takes QP style of breakers.
Wondering if anyone knows a source?