Quoted from stangbat:WOZ draws a bunch of inrush current, mine was an early production model and it came with no inrush current limiter.
Quoted from jrawlinson_2000:I have plugged the WOZ into its own breaker in a hope that would trip and not the rest of the house, but no such luck when it trips it still trips the main breaker!
Can you try installing an inrush limiter? That's quite easy: install an NTC in series with the line. Normally I would install this in the machine itself, but since it is a brandnew machine with warranty you can also make an extension cord with NTC inside.
The UPS is also an option, but more expensive.