Rebekah
I am not 100% sure but I think that there is often confusion between max
fuse and max reverse current. When you list a module you request a fuse
rating , in this case 4 A and UL will test it by applying a max reverse
current of 1.75(max fuse rating) or 7 Amps with out a fuse to insure tha
Reverse current and max series fuse are not always the same, check out this
Solar Frontier manual, pg 3:
http://www.solar-frontier.com/eng/cs/groups/co_en_product/documents/document/mdaw/mdey/~edisp/c012760.pdf
Rebekah Hren
On Mon, Mar 21, 2016 at 3:58 PM, Kristopher Schmid
wrote:
> I just di
I just did a class exercise using the upcoming sw290 for sizing conductors
and OCPD and the calculation was such that a 20 amp fuse was needed
(rounding up from Isc x 1.56). I hope that the maximum reverse current on
the spec sheet is also the maximum series fuse rating.
Kris
On Mar 18, 2016 8:56
Jay
I believe that is the same. I hate that they say it that way...very
confusing. I think it comes from the way it is tested by UL. They reverse
current at 1.5 times the fuse rating to insure the fuse size is correct
(fuse plus safety factor).
Bill
On Mar 18, 2016 6:56 PM, "jay" wrote:
> HI
HI All,
I was looking at the SW cut sheet.
It doesn’t mention series fuse rating.
It does mention “maximum reverse current”
Is this the same thing?
Or where would I find the series fuse rating.
thanks
jay
peltz power
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