Example Pv Configuration - Victron energy Isolated SmartSolar MPPT RS 450/100 Manual

While functional with correct installation, BEWARE that the product warranty will be void if a PV array with a
short circuit current larger than 20A array is connected in reverse polarity.
You must keep the individual tracker inputs isolated from each other. That means one solar PV array per input,
do not attempt to connect the same array to multiple tracker inputs.
When the MPPT switches to float stage it reduces battery charge current by increasing the PV Power Point voltage.
The maximum open circuit voltage of the PV array must be less than 8 times the minimum battery voltage when at float.
For example, where a battery has a float voltage of 54.0 volts, the maximum open circuit voltage of the connected array cannot
exceed 432 volts.
Where the array voltage exceeds this parameter the system will give a "Over-charge Protection" error and shut down.
To correct this, either increase the battery float voltage, or reduce PV voltage by removing panel from the string.

3.4.1. Example PV Configuration

This is an example of an array configuration only. The decision on array configuration and sizing should be
made in consultation with your system designer.
Table 2. Example MPPT RS PV Configuration
Panel type
Victron 260W (60 cells) 36.75 V
Figure 2. Example solar array wiring
11 x 270W 60 cell panels in
series – 418 Voc
418V and 304V DC PV Distribution
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Isolated SmartSolar MPPT RS
Voc Vmpp Isc
30 V 9.30 A
8 x 270W 60 cell panels in
series – 304 Voc
Impp Nr of panels Max String voltages
8.66 A #1 - 11 #1 - 404 V
#2 - 8 #2 - 304 V
Ptot
2860 W
2080 W
Installation