Technical data

Examples of PV Systems
Examples of different PV connections/systems are found below with the following explanatory
overview table:
Ex-
ample
String
capacity,
orientation
and inclination
Connection point B
External
splitter *
External
parallel
connection
C
Internal
parallel
connection
in inverter
Inverter inputs
A
Generator
connection
box
Inverter 1 2 3
1 3 identical x Yes 3 in parallel Required Splitter
output
(optional)
Splitter
output
Splitter
output
2 3 identical x Optional 1 string 1 string 1 string
3 3 different x Not permitted 1 string 1 string 1 string
4 1 different
2 identical
x Not permitted for
string 1.
Optional for
strings 2 and 3.
1 string 1 string 1 string
5 4 identical x Yes 4 in parallel Required Splitter
output
(optional)
Splitter
output
Splitter
output
6 4 identical x x Yes 3 in parallel
1 in series
Optional Splitter
output
Splitter
output
7 6 identical x Required 2 strings 2 strings 2 strings
8 4 identical x x Required 2 strings via
Y-connector
1 string 1 string
* When total input current exceeds 12A, external splitter is required.
Table 5.5: Overview of PV System Examples
5. Requirements for Connection
34 L00410582-01_02
5