Amensolar N3H-X10US, array inputs and opinions

[GeneHgeorgia]

I am looking into buying a couple of these Amensolar N3H-x10us to replace my 3 month old Growatt SPH1000 that I can't get help with. The Amensolar lists it's ratings at 15K PV, but it has 4 array inputs. I have a concern about the 10k. On Watts247, it was listed that the max. per MPPT was 4000 watts. This maybe a problem for me. My PV arrays are 3 at 5000 each. I see the max. input voltage is 500 volts. The manual says something about the MPPT input range max is 440 with batteries. I am only looking to install three arrays. These arrays are mounted and running, is to hard to rewire. The max amp per input is 14 amps. My array output is 13.41 (Imp)

This is what I have. my panels are Vmp = 31.7 X 12 panels = 380.40 v
Voc = 38.3 = 459.60 v
Imp = 13.41 = 13.41 a
My panels are GSD7S54T-425WT

I have read that if you do not exceed the voltage and amperage inputs of each input on a array, you would be good. Also I would like anyone's opinion on this make of a inverter.
Thanks

 

[No-one-&-Not-Important]

Hello @GeneHgeorgia.

I found discrepancies in Amensolar’s datasheet (linked here) and Watts247 specs so I contacted Amensolar’s tech team (China) & they were responsive but were not clear on the specs being met. It seems that because Amensolar is a MegaRevo rebrand (identical specs), they probably don't have the technical know how. Instead, I’m reaching out to MegaRevo for confirmation. Because when I looked at Growatt, I had zero luck with support, I stopped considering them and I'm sorry you’re stuck with an unresponsive system. I'm testing support for every inverter I consider before making a purchase. What has worked for me so far: I ask for the certificates and from there I see the name of the company to whom the certificate was issued to. That tells me who actually has the technical know how. I then annotate the full manual (not just the spec sheet) and send marked-up questions with page references. Makes it clearer & easier for tech support to respond.

While EG4 12000XP is my current choice, I’m exploring lower-cost options to support my property's 120A loads (14.4kWh/61.4kW). I’m considering 2-4 inverters for redundancy & I'm keeping PV strings ≤4kW per MPPT. I know that’s tough in your case, but unless you find a better-suited inverter, it might be necessary.

Happy to share anything I learn from Amensolar and others.

Cheers!

 

[WrenchLight]

I am looking into buying a couple of these Amensolar N3H-x10us to replace my 3 month old Growatt SPH1000 that I can't get help with. The Amensolar lists it's ratings at 15K PV, but it has 4 array inputs. I have a concern about the 10k. On Watts247, it was listed that the max. per MPPT was 4000 watts. This maybe a problem for me. My PV arrays are 3 at 5000 each. I see the max. input voltage is 500 volts. The manual says something about the MPPT input range max is 440 with batteries. I am only looking to install three arrays. These arrays are mounted and running, is to hard to rewire. The max amp per input is 14 amps. My array output is 13.41 (Imp)

This is what I have. my panels are Vmp = 31.7 X 12 panels = 380.40 v
Voc = 38.3 = 459.60 v
Imp = 13.41 = 13.41 a
My panels are GSD7S54T-425WT

I have read that if you do not exceed the voltage and amperage inputs of each input on a array, you would be good. Also I would like anyone's opinion on this make of a inverter.
Thanks

With VoC of 459.6 and a max input of 500V, you have 40.4V of room to get colder. With 0.25%/C, it looks like you can go to -10°C in full sunlight. Any colder and you risk going over 500V.
No problem on your strings being 5000W. The Megarevo inverters can pull a little more than the max rated MPPT power. It won't hurt them to have more solar power available. The 500V is the most important limit to observe.