Hello,
the Multi RS Solar 48/6000 can handle 3kW PV power per MPPT at max. 13A.
Can I also use modules with an Imp of 13.5A or can this damage something? The 13.5A are probably rarely reached in real life, so the loss would be manageable.
How much can an MPPT input be overloaded? Is it enough if I stay below 450V or 8*BatFloatVoltage (TempKoeff corrected for cold temperatures)?
Or are there other limits here?
The manual states maximum operational current is 13A. Means it wont track higher.
MPPT PV inputs are protected](4. Installation) against reverse polarity, to a maximum short circuit current of 16 A for each tracker.
So the isc matters more. And the 450v is a definite hard limit. Leave at least 10% headroom for cloud edge effect and other weird happenings.
Your max power is affected by battery voltage.
Continuous output power at 25°C
Increases linearly from 4800 W at 46 VDC to 5300 W at 52 VDC
If you need more solar add another mppt.
1 Like
i expect the modules to be partially shaded. Can I overload if I observe the 450V limit plus 10% margin? The fact that the output is then reduced if there is no shading is known and accepted. However, I am interested in more power when the sky is cloudy.
So the theoreticaly max per mppt tracker i can connect would be (450V*0,9)*13A= 5265W - but al above 3000w would clip, correct?
Yes, it will clip.
How does your 8x float voltage work on your system?
What do you mean?
What is your float voltage?