Delta RPI M30A Operation And Installation Manual page 24

Wiring
M50A:
-Also, you can't use two or more branch to share the current from combiner
box to each dc connector of inverter (Shown as
Because the current might not be symmetric among the branch,the current
of one branch might larger than the limitation still.
Strictly forbiden
Risk of fire on internal
entrance cabling
>16A
>16A
>16A
Figure 4-8
24
Figure 4-8).
>16A