Quoted from vid1900:

Can you plug WOZ into its own RCD breaker, but then run an extension cord to another (ideally non RCD) circuit?

Quoted from stangbat:

WOZ draws a bunch of inrush current, mine was an early production model and it came with no inrush current limiter. I don't know if they now come with one. Mine would trip my RCD on cold start up. After the caps have a little charge, it won't trip the RCD as the inrush isn't as great. Let the machine sit for a little bit, the caps will discharge, and it will trip the RCD on the next power up.
I opened a ticket and asked for an inrush current limiter. They sent me one, I installed it, it made no difference. I'll have to look up what resistance it was, but it was less resistance than what is used on WPC games. I'm guessing WOZ needs more current limiting than what they sent me. I reported that it was still tripping the RCD, got no response. I gave up and rewired the outlet that WOZ is plugged into. Not the best solution but I got tired of messing with it. None of my other games trip the RCD and I had 5 plugged into the same run at one time (20 amp circuit.)

Quoted from vid1900:

Sorry I was not more clear.
I was asking if you could plug WOZ into a non- RCD outlet, but with a separate RCD on the line cord.
For instance, here in the USA I have an extension cord with it's own GFCI molded into it.

Quoted from Richard_BoK:

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.