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Want to move to all 208V for server racks



On Thu, 02 Dec 2010 13:39:16 -0500, Kevin Day <toasty at dragondata.com>  
wrote:
> You can get breakers with GFIs built into them(called GFCIs), but  
> they're favored less than putting them at the outlet. ...

I think they are now a violation of the NEC.  And they were delisted by UL  
years ago.  They pose a hazard as they will not react fast enough to  
prevent a fatal shock. (and the only one's I've ever seen were outlawed as  
the breaker itself was a fire hazard.)

--Ricky