Delta RPI M30A_120 Operation And Installation Manual page 27

M30A :
_120
- Also, you can't use two or more branch to share the current from combiner box
to each DC connector of inverter (Shown as Figure 4-8).
Because the current might not be symmetric among the branch,the current of one
branch might larger than the limitation still.
The max input current of each string is 7.5A.
Strictly forbidden Strictly forbidden
Risk of fire on internal Risk of fire on internal
entrance cabling entrance cabling
Figure 4-8 : Wrong connection – 2
27
Wiring