Planing for a small balcony solar system, is this a suitable inverter?

[frd]

Hallo ,
I have two Solar modules for my Balcony solar System. They are rated each:

Power 120 V (19,2%)
Voltage at max. Power 20V
Current at max. Power 6,0
open circuit
Voltage 24 V
Current 6,5 A
Max. Sys. Voltage 70V

I planed to combine them with the 250W 45V Micro-Inverter
INV250-45 from AC Conversion. Which I can get easily.
It is supposed to be used for one or two Modules up to 400 W.

INV250-45 Micro-Wechselrichter

The input specifications are:

Max PV Power 250W
Max DC Voltage 45V
Min./Max. Startspannung 18V / 45V
MPP Voltage 20V ... 40V
Max DC Current 11A

First I tought this suits fine, when I combine the Modules to 2*20V and 6A current.
But this leads to a Max Votage of 48V, which is slightliy off the specification.
Would this be a problem, or will the MPP regulation keep it in the acceptable area anyway?

For the next Size the INV 315, which is rated 50V, there are no offers, so
I would need to take the INV 350 rated at 60V and distinct more expensive.

Can I go on with the INV 250, or will this cause trouble?
Due to the installation situation, and my neighbors preference for shiny roofs the modules might get
some more sun in winter time. The orientation is exact south 30°.
Many thanks for your advice,

Frieder from Germany.

 

[12VoltInstalls]

will the MPP regulation keep it in the acceptable area anyway?

No. Max means absolute limit

orientation is exact south 30°.

I’m assuming 30* lean back; exact south is 180*

 

[frd]

Thank you for this clarification. I have now ordered a more capable inverter which can manage 60V.