Ok so a building in the company im working for wants to use a new machine from out of the country. I'm in US. So We have 240v single phase there and the machine is 3.6kva, 220v, three phase, at 50Hz. So I was thinking of running wires from our neighboring building underground that has 3 phase...

I have to install a 200A panel for a job. Is a 250A breaker big enough for this job? Can i install 40, 20- 30 A single pole breakers safely?