Kaneka GSA? [RE-wrenches]

[Matt Tritt]

So Bill,

Dang it. Very good question! Just ran down and checked the label on one of these babies, and guess what? Make that .9 amps and 1.19 amps. It doesn't change things much, considering that the label also indicates "5 amp series fuse". On the + side, the product sheets we have on this model actually agrees with the labels.

I will attempt to point out this discrepancy to Kaneka. Sheesh!

Matt


--- Bill Brooks <bill at brooksolar.com> wrote: 
> 
> So Matt,
> 
> What would the appropriate fuse rating be for two series strings in
> parallel? 
> 
> Assuming the Isc is 1 amp, then Imax = 1 amp x 1.25 = 1.25 amp [690.8(A)].
> 
> Therefore you must subtract the 1.25 amps from the 5 amp rating so the max
> fuse rating is 3.75 amps
> 
> Two strings in parallel have a max current of 2.5 amps (1.25 x 2), and the
> minimum series fuse rating is 2.5 amps x 1.25 = 3.1 amps [690.8(B)]. So the
> correct number is 3.5 amps.
> 
> The only fuse allowable for this arrangement of two strings in parallel is a
> 3.5 amp fuse. I'd be interested to see if they have this in their
> literature.
> 
> Bill.
> 
> 
> -----Original Message-----
> From: Matt Tritt [mailto:solarone at charter.net] 
> Sent: Tuesday, August 15, 2006 8:55 AM
> To: RE-wrenches at topica.com
> Cc: Travis Creswell, Ozark Solar
> Subject: Re: Kaneka GSA? [RE-wrenches]
> 
> 
> 
> -Hi Travis,
> 
> The panel label info. trumps the manual info, so that would be 5 amps. The
> actual output from a series string is about 1 amp and they are designed to
> be fused for 2 parallel strings with a single fuse.
> 
> Matt T
> DC Power Systems
> 
> 
> --- "Travis Creswell wrote: 
> > 
> > Can someone tell me what the "series fuse" rating of the Kaneka 60 
> > watt module is?
> > 
> > Any comments on this module would be welcome.
> > 
> > Thanks in advance,
> > 
> > Travis Creswell
> > Ozark Energy Services
> > www.ozarkenergyservices.com
> > 
> > 
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