ok, so i would get the 15a inline fuse holder, take out 15a fuse and replace with 12a fuse. Am I understanding this correctly?
I know you’re stuck with the 100W panels and now focused on a solution based on those, but da*m, that’s a pretty good price on those 405W panels (especially for only 4).Hello. I am in a little dilemma with setting up my solar. I initially bought 10 100w panels which i found out is a newbie mistake.
Woops. I set up a return for them with amazon because it was free returns and placed an order with a1solar for 4 405w panels instead.
JA Solar 405w Solar Panel 72 Cell JA-JAM72-S10-405MR - A1 Solar Store
JA Solar 405w Solar Panel 72 Cell JA-JAM72-S10-405MR features class leading power output that makes it ideal for any installations including commercial and rooftop systems. Look into detailed descriptions, reviews, pictures, at A1 Solar Storea1solarstore.com
Is this a good 12a fuse?If rated input current is 120A (2500W input at 21.4V) then I'd use at least 150A fuse (25% larger than continuous current)
The goal is for fuse to never blow. Not unless there is an actual short.
not superstore, solarstore. Its A1solarstore.com. Based in FL. They came up when i searched for buy solar panels or a similar search term to that. Ive never heard of them or any of the companies so it made no difference who i clicked on. After i checked several out, i went with them. They had good deals and a good freight price of only $175 for up to 12 panels. Thats why i was really bummed they rejected my order. Really weird because it was 2 days later and i got an email saying cs failed. The email also said hey will not process my order due to suspected fraud. Thats a pretty hefty claim and they back it up with nothing. Just saying i dont know when i called them. I finally did get through to my bank and they said they didnt reject anything and a1 must not accept that form of payment--visa?!? That made me remember that a1 had said to pay with paypal. I dont have that and I dont really want it. But on top of all of that, the $ had been removed from my account but then placed back. It was odd. Then i realize theres a lot of shady business on the web and im nervous about it now.I know you’re stuck with the 100W panels and now focused on a solution based on those, but da*m, that’s a pretty good price on those 405W panels (especially for only 4).
Extra panels means extra costs for wiring and more importantly, extra cost for more racking.
I get my racking system for about $25/panel, so that’s another $250 for only $1000W ($0.25/W) versus $100 to rack the 4 larger panels delivering $1620W ($0.062/W).
So if you still had a choice to make (of for next time), fewer, more-powerful panels are almost always preferable to more smaller-powered panels ($/W being roughly equivalent).
I’ve not heard of A1 Superstore before - how did you hear about them. Does anyone here on the Forum have any experience with them?
Is this a good 12a fuse?
does it matter fast acting or slow? Ceramic or not? Some say 250V, some say 600V. Which one do I need?
heres the fuse holder i was thinking of getting too
Is this a good 12a fuse?
does it matter fast acting or slow? Ceramic or not? Some say 250V, some say 600V. Which one do I need?
heres the fuse holder i was thinking of getting too
im finding 10a or 15a fuse and holder:Save yourself some headache. Get the fuse and fuse holder from the same place. Here is where I bought mine:
thanks for the help with that. I would like to know what type of fuse is ideal for the 50a before charge controller. It is a 40amp cc. Renogy says do 40a fuse. But 50a is what im advised here. Should i look for anl fuse type? Cn anyone show me a good one?
Im thnking about getting this:
CC? Need to be specific here. Solar charge controller? If so, the Blue Sea 185 type circuit breaker is fine.
Solar panel -> circuit breaker -> solar charge controller -> circuit breaker -> common bus bar
The two circuit breakers in the above "diagram" will be different. The first one will be for the amount of amps the solar panels, as a set, will produced. The second one is for maximum amount of amps the solar charge controller is rated for.
Both circuit breakers will follow the amp rating x 1.25 formula.
would this fuse workCC? Need to be specific here. Solar charge controller? If so, the Blue Sea 185 type circuit breaker is fine.
Solar panel -> circuit breaker -> solar charge controller -> circuit breaker -> common bus bar
The two circuit breakers in the above "diagram" will be different. The first one will be for the amount of amps the solar panels, as a set, will produced. The second one is for maximum amount of amps the solar charge controller is rated for.
Both circuit breakers will follow the amp rating x 1.25 formula.
Are these the correct specs for your 100 watt panels?
Maximum Power Voltage (Vmp): 18.78V
Maximum Power Current (Imp): 5.32A
Maximum System Voltage: 1000V DC
Open-Circuit Voltage (Voc): 22.64V
Short-Circuit Current (Isc): 5.7A
those are the correct specs.
What is your configuration of the panels? 5s2p, 2s5p?
its not configured yet. They will be soon though. I had been thinking 3s4p. Do you think it would be better to do 5s2p or 2s5p? I have 4 12v batteries which I am setting up 2s2p. My charge controller is 12/24v and it is 40a. My inverter is 24v and is 2000w.
I like that it has a grounding bar, bus bar and the breakers. But I already have the y connectors and i have planned out the inline fuses. I wasnt sure if i needed this. But it sounds like i dont. It sounds like it would be redundant.That works too.
Might be more convenient than in-line fuse holders. Bulkier. Can integrate a disconnect (breaker)
That listing is just the box, already as expensive as four fuses, fuse holders, some "Y" cables.
Add to that either four DIN rail fuse holders and fuses, or four breakers.
that would have eliminated the need for fuses between panel strings. All other fuses would still be necessary, if I am correct.What is your configuration of the panels? 5s2p, 2s5p?
its not configured yet. They will be soon though. I had been thinking 3s4p. Do you think it would be better to 67V
5s2p or 2s5p? I have 4 12v batteries which I am setting up 2s2p. My charge controller is 12/24v and it is 40a. My inverter is 24v and is 2000w.
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Isn't your 40A SCC a Renogy 100V max input?
3S 4P is your best choice for 12 panels.
5S2P is only 10 panels and over your 100V max input.
If you had bought a 150V input SCC then for 6S2P you would have not needed fuses.
CC? Need to be specific here. Solar charge controller? If so, the Blue Sea 185 type circuit breaker is fine.