6 Electrical Connection
SMA Solar Technology AG
Operating manualSTP8-10-3AV-40-BE-en-1236
You have the option of operating the DC inputs A and B in parallel, and therefore of connecting
several strings to the inverter.
RS485
A
B
AC
+
−
+
−
+
A
B
−
+
−
+
_
+
_
+
_
Figure 9: Connection overview for normal operation
RS485
A
B
AC
+
−
+
−
+
A
B
−
+
−
+
_
+
_
+
_
+
_
Figure 10: Connection overview for parallel connection of the DC inputs A and B
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