How many 100w can you wire in series and connect to an EG4 3000EHV 48? Currently I have 10 100w panels @ 5.15A Imp/19.25 Vdc. I'm in the low 200's with the current configuration and I am wondering if anyone has a system with more than ten (10) panels wired in series without any parallel connections.
EG4 3000EHV 48
- Thread starter Aldricoak
- Start date
AZ Solar Junkie
Maricopa, AZ
That set of panels in parallel would put your voltage in the low 100’s - if I remember correctly the 3000EHV needs 120v before the MPPT will start charging so it’s not too surprising…
Any Electrical box will do, You are just combining The Positives and Negatives into a single pair ( I did mine AFTER my Solar DC Breakers)
The minimum voltage to start charging is 120v. The max voltage is 500v. You need to get enough panels in series to hit the 120v minimum.
grebaba
New Member
I am running 12 in series on mine, showed 420v max yesterday.
Greg
Greg
For the MPPT, a minimum of 120V is required. You may connect multiple panels in series, provided the total voltage does not surpass 450V. However, it's important to consider the impact of cold weather on voltage, so you should factor this into your calculations based on your location.
grebaba
New Member
The 450V limit is confusing.
My manual say's 500V's.
Can you tell me why there would be the difference?
I just checked and it is outputting 399V's and I haven't figured my winter time volts yet but will remove a panel or two if I have to.
Greg
My manual say's 500V's.
Can you tell me why there would be the difference?
I just checked and it is outputting 399V's and I haven't figured my winter time volts yet but will remove a panel or two if I have to.
Greg
I apologize for any confusion. The MPPT can handle up to a maximum of 500V, but it can only utilize up to 450V effectively. Therefore, any voltage between 450V and 500V would not be used and is essentially wasted.
grebaba
New Member
Thanks for the answer, I was really confused about that.
Greg
Greg
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