Too much wattage from panels to Flexmax60 charge controller?

I'm installing 6-370 watt panels in parallel to my Flexmax60 charge controller. Is that too much wattage for that controller?
SkipMcA
South Park, Colorado
South Park, Colorado
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No problem for a 48 volt system...
Close for a 24 volt system...
Too much for a 12 volt system...
When in doubt consult your manual;
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South Park, Colorado
South Park, Colorado
Hi Skip..,
Well, like so many things, it really all depends on the EXACT specs of the PVs. Assume that you have a 24 V system, still.
BUT, the OB FM60 and FM80 have a Maximum total PV Isc spec -- 80% of the output current rating. For the FM60, this is 48 A total for the sum of the Isc rating of each string, or of each PV, it the PVs are singles, all in parallel.
What is the manufacturer and model number of the 370 Watt PVs that you would be using?
Thanks, VIc
South Park, Colorado
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Hello Dave: Do you mean do one string of 8 batteries for 48v? I would still have adequate power with that setup. They are Rolls L16s at 428ah.
South Park, Colorado
http://members.sti.net/offgridsolar/
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Hi Skip,
Re your original question, the total maximum Isc for six of those PV all in parallel, is 59 Amps. The Limit for the OB FM60 is 48 Amps, so, the proposed configuration results in excessive total PV Isc.
Strings of two of the PVs should be OK, as that halves the total Isc (29.5 A).
OR, an FM80 (64 A total max Isc rating) should be OK with all six PVs in parallel.
The way I see it, Vic
South Park, Colorado
Skip,
Well, five of the 370 W PVs on an FM60 is certainly less-risky than are six.
It would probably be OK, in most situations, but, still a bit over-spec on the max PV power. Would worry less about being about 2% over the total max Isc.
Your decision. Good Luck, picking nits, over for now. Vic
South Park, Colorado