Question of maximum input voltage on EG4 6000XP

I was looking over the specs for the EG4 6000XP Inverter one last time before I make my system purchase and I was noting that the maximum input voltage is 100-480VDC. Is that 480V limit for each MPPT? I guess I'm just wondering how the inverter supports an 8kW array if you'll exceed the maximum voltage long before you reach that wattage.

In looking some of the solar panels I'm considering, they have a voltage around 41V. My concern is that I'm looking to have an 8kW PV array which would require around 16 panels. If I'm calculating it correctly, wouldn't 16 panels be putting out 656 volts and thus exceeding what the inverter can support? My understanding is that the 6000XP has two MPPT's so I was hoping that I could have 8 panels connected to each one which would be below the maximum input voltage but I just wanted to make sure.

41V x 8 panels in series = 328V Well below the max voltage limit.

MapleGuy said:

Is that 480V limit for each MPPT?

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Yes

MapleGuy said:

I guess I'm just wondering how the inverter supports an 8kW array if you'll exceed the maximum voltage long before you reach that wattage.

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Each Input is rated for 17A usable current for a total of 34A. 8,000W/34A = 235V so if the current was maxed out the PV arrays would only need to be at 235V to produce the 8,000W.
On the other hand, 8,000W/450V = 17.7A. If the PV arrays were producing an operating voltage of 450V each input would only need to be 8.9A.

MapleGuy said:

In looking some of the solar panels I'm considering, they have a voltage around 41V. My concern is that I'm looking to have an 8kW PV array which would require around 16 panels. If I'm calculating it correctly, wouldn't 16 panels be putting out 656 volts and thus exceeding what the inverter can support? My understanding is that the 6000XP has two MPPT's so I was hoping that I could have 8 panels connected to each one which would be below the maximum input voltage but I just wanted to make sure.

Click to expand...

Yes, 8 panels per MPPT input would be one correct configuration. Since each MPPT is independent, the number of panels in each array do not need to be the same as long as the Voltage and amperage stay within their respective ranges.

Thank you for the reply and all the info. I appreciate that!