User Manual
38
6.3.2 PV Connection Procedures
DC cables from PV strings should be equipped with DC connectors.
Sungrow provides corresponding plug connectors in the scope of delivery for quick
connection of PV inputs. Pairs of MC4 DC connectors are supplied in the scope of
delivery.
To maintain IP65 weatherproof function of inverter, only the supplied
DC connectors or the connectors of the same protection class can be
used.
DC Cable Requirements
Tab. 6-1
DC Cable Requirements
Cross-section
Area Range
Outer cable
diameters
Max. Withstand
Voltage
Max. input current
for each PV string
4...6mm
2
12AWG…10AWG
6…9mm
1100V
12A
The DC cable must be multi-core cable
The input current of each input channel should be less than 12A,
otherwise the fuse may blow out.
DC Cable Connection
Make sure that all the DC and AC cables to the inverter are not live before
you start the electrical work.
Step 1
Strip off 7mm insulation layer from
all DC cables.
7mm
