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Powmr 5000W Solar Inverter Built-in 60A PWM Solar Charge Controller DC48V AC220V Wire Question/ Advice needed.

Joined
Jan 7, 2021
Messages
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Hi Group, (New to solar)
New project at hand here.
Playing with a small system and seeing if I don't light up a fire or - Simply just make a smart simple installation..

My goal. Off grid inverter to run a few mini splits in hot Phoenix Arizona
Purchased rec 310w 72 cell 48v panels - I'll list the specs,
45.3 voc, 6.80 amps

Inverter states 145v max pv voltage.
My Idea..

3 - 310 watt panels, 48 volts- wired in series
x 3 more sets of 310 panels wired in series then both connected in parallel
to equal 136 +/- volts /and 13.6 amps per string.
so a total of 2 strings - for starts

My end goal is to have 4 strings of 12 / total 310 w /panels in a form of a combiner box..
But here is my main question.. If i am calculating correctly....

Start off with 2 strings set up in 3s and attach to each input on the combiner box?..
1. If I add 2 strings like this, will the combiner box place them in parallel automatically?
2. Is this eco-worthy a box to consider?? I had already purchased it.. (Returnable if not necessary)
3. Or how would one combine stings into parallel???

can I use this eco-worthy ( See below)

Also, if my thinking is not correct.. can one please provide a simple suggestion of how to properly wire, and should I consider inline fuses instead????



Thank you forum, eager to set up and test..

running 10 gauge pv wires as well
61gphDWrg0L._AC_SL1000_.jpg61sBEdDE-8L._AC_SL1000_.jpg

ECO-WORTHY 4 String PV Combiner Box with Lightning Arreste, 10A Rated Current Fuse and Circuit Breakers for On/Off Grid Solar Panel System​





My Inverter specifications:

Product Description 5kw system.. not the 3kw system on the sticker..​

BrandPowmr
TypeCharger/Inverter
FeaturesLCD Display,PC Display,Temperature Control,USB Port
System ConfigurationHybrid
Voltage145V
ModelPOW
Current TypeAC/DC
ApplicationHome/Garden
Charging ModeMPPT (Maximum Power Point Tracking)
Power SourceSolar
ColorGray
Inverter TechnologyHybrid
Recommended EnvironmentIndoor/Outdoor
Size100 x 285 x 334mm/100 x 300 x 440mm
Weight11.5kg
Country/Region of ManufactureChina
Power5000w
 

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"45.3 voc, 6.80 amps
3 - 310 watt panels, 48 volts- wired in series
x 3 more sets of 310 panels wired in series then both connected in parallel
to equal 136 +/- volts /and 13.6 amps
per string.
so a total of 2 strings - for starts"

It will be 6.8A per string, total current of two strings in parallel = 13.60A.
 
"45.3 voc, 6.80 amps
3 - 310 watt panels, 48 volts- wired in series
x 3 more sets of 310 panels wired in series then both connected in parallel
to equal 136 +/- volts /and 13.6 amps
per string.
so a total of 2 strings - for starts"

It will be 6.8A per string, total current of two strings in parallel = 13.60A.
Hi Bud, thank you for the reply.. I fully understand that wiring in series the amps will stay the same...
But my main questions were: if I placed each string into the eco-worthy style combiner box, etc, will the combiner box apply the power
in parallel?? Hence making the voltage 136 v constant/ , and increasing the amps, per string along the output?

Would I even need or would you recommend a combiner box for such a small application as i had mentioned prior, or just string direct with adapters/ and if this approach is recommend over a combiner box, would I need numerous fuses, or just stick with combiner box..

thx.
 
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