Sungrow SG1K5TL-31, User Manual

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Electrical Connection
5
31
5.2
Terminals Description
All electrical terminals are located at the bottom of the unit, as the following diagram
shows. Enough space should be kept for electrical connection at the bottom of the
inverter when choosing the installation site.
Fig 5-1 Terminals Description
5.3
Specifications of Cables
All cables for PV power system are equipped with water-proof direct plug-in
connectors. You’ll find these connectors in the package.
For electrical connection in PV power system, specification of all cables used should
meet following requirements. And user should equip these appropriately sized cables.
Table 5-1 Specifications of Cables
Items No. Min. cross area
(mm
2
)
Max. cross area
(mm
2
)
Recommended
value (mm
2
)
DC positive cable 1 2.5 4 4
DC negative cable 1 2.5 4 4
AC
cable L 1 2.5 4 2.5
N 1 2.5 4 2.5
PE 1 2.5 4 2.5
RS485 cable 2 0.5 1.5 0.75