Question about EG4 3000EHV-48 solar panel voltage requirements

The EG4 3000EHV-48 all-in-one inverter/charger, in the data sheet, under “solar input specifications” it says “PV array: 120VDC-450VDC”. Does that mean that the solar panels must produce a voltage greater than 120 volts in order for the MPPT to function?

1000% Yes, AND it needs to be temperature adjusted Vmp, not Voc. I would shoot for at least 180Voc to ensure you're well above 120Vmp.

FrancoNM said:

The EG4 3000EHV-48 all-in-one inverter/charger, in the data sheet, under “solar input specifications” it says “PV array: 120VDC-450VDC”. Does that mean that the solar panels must produce a voltage greater than 120 volts in order for the MPPT to function?

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The PV voltage will need to be greater than 120v to power loads and charge batteries from PV power.

Yikes. Thanks for the quick response. So that means that I’m gonna have to string together several solar panels just to get to 180 Voc. Do all solar panels have open-circuit voltage in the 12-24 volt range?

Most panels I typically see have a Voc around 35-45 volts. However, I have seen lower voltage panels be used for different applications.

FrancoNM said:

Yikes. Thanks for the quick response. So that means that I’m gonna have to string together several solar panels just to get to 180 Voc. Do all solar panels have open-circuit voltage in the 12-24 volt range?

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36 cell "12V" panels are ~18Vmp, 22 Voc
60 cell panels are ~30Vmp, 36Voc
72 cell "24V" panels are ~36Vmp, 45Voc

there are also 54 cell and others, but the above are the most common. Even within those cell counts, you can find significant (10%) variation)

36 and 72 cell have special designations as those sizes must be chosen to properly charge that system voltage on a PWM controller.

Minimums to ensure 120Vmp in hot conditions:
4S 72 cell panels.
5S 60 cell panels.
8S 36 cell panels.