[rescue] Real amp draw of E3000

Will McDonald wmcdonald at gmail.com
Thu Sep 21 10:26:53 CDT 2006

On 21/09/06, William Enestvedt <William.Enestvedt at jwu.edu> wrote:
> Patrick wrote:
> >
> > I think, based on my experience with an E4000, that you should budget
> > 750W available for when it starts, and about 400W to 500W continuous.
> > I think 340W continuous was what the E4000 used with 8x250Mh
> > CPUs, 5-6GB and a few internal disks.
> >
>   I *love* real world data, thank you!
>   When I called Sun last year about the PSUs on a V490 with 208 plugs,
> I got a long run-around saying that I would have to _hire_ Sun
> professional Services in order to ask this question. See, the Sun
> Spectrum Support people couldn't tell me anything about the power as it
> was "a liability issue." *snort*
>   Have you got any idea about the amps, though? I think my twin PDUs
> are rated for 20 amp (on 20 amp circuits, I know that much!), and I want
> to put in a V40z (10 amp max.) where I already have a 420R (6.3), a
> 4-CPU E3500 (9.5), a 280R (9.2), a 12-drive A1000 (2.6), and a 15" CRT.


A = W / V


A = 750/240 (for the UK)
A = 3.125 (again for the UK)

A = 750/120 (for the US?)
A = 6.25 (again for the US?)

nb: I'm not qualified in engineering either, therefore for liability
reasons I recommend you hire an electrical engineer to perform these
calculations for you. ;)


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