Sungrow SG50CX User Manual

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

Sungrow SG50CX Specifications

General

Max. DC Voltage	1100 V
MPPT Voltage Range	200 V - 1000 V
Max. Input Current per MPPT	26 A
Number of MPPTs	4
Rated AC Output Power	50 kW
Max. AC Output Current	76 A
Frequency	50 Hz / 60 Hz
Efficiency	98.6%
Start Voltage	200 V
Number of DC Inputs per MPPT	2
Max. AC Apparent Power	55 kVA
AC Voltage Range	310 V - 480 V
Power Factor at Rated Power	1
Adjustable Power Factor Range	0.8 leading - 0.8 lagging
THDi	< 3%
DC Switch	Yes
AC Surge Protection	Type II
DC Surge Protection	Type II
Protection Class	I
Cooling Method	Smart forced air cooling
Protection Degree	IP66
Protection Level	IP66
Operating Temperature Range	-25°C to +60°C
Humidity	0-100%
AC Output Voltage	3 / N / PE, 220 V / 380 V, 230 V / 400 V