Sungrow SG50CX - Electrical Connection Overview

37
Item Terminal Mark Note
C
AC junction
box
—
Remove the protective case and use the junc-
tion box in the shipping accessory for wiring.
D
External pro-
tective
grounding
terminal
use at least one of them to ground the inverter.
5.3 Electrical Connection Overview
The electrical connection should be realized as follows:
Item
Designation
A
PV string
B Inverter
C Grid
D
Monitoring device
E AC circuit breaker
table 5-1 Cable Requirements
No. Cable
Type
Specification
Cable Diame-
ter(mm)
Cross-sectional Area
(mm
2
)
1 DC cable
PV cable comply-
ing with 1,500V
standard
6 ~ 9 4 ~ 6
2
Additional
grounding
cable
Outdoor single-
core copper wire
cable
The same as that of the PE wire in the AC
cable
User Manual 5 Electrical Connection