Fred K Ollinger on Tue, 07 Jan 2003 18:10:35 -0500


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Re: UPS VA ratings (was: Re: [PLUG] equipment give-away on Wed evening)


> On Tue, Jan 07, 2003 at 03:54:07PM -0500, Jeff Abrahamson wrote:
> > I have two UPS'es (uninterruptible power supplies). They are 420 and
> > 450 VA respectively. Remembering freshman calculus and root mean
> > squares, this means they are rated 300 and 320 W respectively.
>
> Care to elaborate on that? I'm glad to admit my complete lack of
> knowledge; I'd presumed those were model numbers. (I've got a pair
> of 1100s, and it sounds like it was a good idea to go that large,
> being as I've got a 450 W power supply in my IA32 machine...)

Actually, IMHO, the model numbers (at least for apc products) are the
voltages.

Fred
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