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(A) PV string (B) Optimizer (C) Inverter
(D) Loads (E) Grid (F) External device
(G) AC circuit breaker (H) Smart energy meter
table 5-3 Cable Requirements
No. Cable
Type
Cable Diameter Cross-section
1 DC cable
Outdoor multi-core
copper wire cable
complying with 600
V and 20 A
standard
6 mm ~ 9 mm 4 mm
2
~ 6 mm
2
2 Meter
RS485 cable
(1)
Shielded twisted
pair
4.8 mm ~ 6 mm
2 * (0.5 ~ 1.0) mm
2
3
External
Grounding
cable
Outdoor single-core
copper wire cable
4 mm ~ 10 mm 6 mm
2
~ 10mm
2
4
AC cable
(2)
(3)
Outdoor 3-core
copper wire cable
SG5.0RS-ADA:
13 mm ~ 19 mm
SG8.0RS: 16
mm ~ 22 mm
SG9.0/10RS: 18
mm ~ 25.8 mm
SG5.0RS-ADA: 6 mm
2
~
8 mm
2
SG8.0RS: 8 mm
2
~ 10
mm
2
SG9.0/10RS: 10 mm
2
~
16 mm
2
5 Ethernet
cable
CAT 5E outdoor
shielded network
cable
4.8 mm ~ 6 mm
8 * (0.08 ~ 0.2) mm
2
(1) The cable requirements for COM2 terminal connection are the same.
(2) All the AC wires should be equipped with correctly colored cables for distinguishing.
Please refer to related standards about the wiring color.
(3) Select appropriate OT terminals based on the diameter of the AC cable.
5 Electrical Connection User Manual
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