Want to move to all 208V for server racks

[if at xip.at (Ingo Flaschberger)]

Dear Jay,

>> you mean 240V AC 50HZ and move from 120V 60Hz? (or also 50Hz)
>
> In US, I think everything is 60Hz.  But I mean 208v single phase.
> (Which is what you get when you combine two 120v single phase legs out
> of three phase, I believe.  I am not an expert on AC...)

I got the point.
120 * sqrt(3), phase to phase, three-phase current in european;

>> you will need to check each device if it supports 240V, commonly the
>> specified power ratings are printed at a stricker on the device itself.
>
> I have even been looking at USB HD AC adapter and all other odd ball
> equipment and I always see the label say "100~240v AC".  Dell's old
> rack mount monitor/KB from 5 years ago even supports 208v (Just wrong
> connector.)

Whats the idea behind todo this?
You will also need circuit breakers that both phases are switched of
simultaneous?

Kind regards,
 	Ingo Flaschberger