Sungrow SG125CX-P2 User Manual

User Manual 5 Electrical Connection
Item Terminal Mark Note
H
External pro
tective
grounding ter
minal
use at least one of them to ground the inverter.
*If the PE cable is an independent single-core cable, it should be inserted into the AC junction
box through the standby grounding terminal.
5.3 Electrical Connection Overview
The electrical connection should be realized as follows:
（A）PV
string
（B）Inverter （C）Tracking
Control Box
（D）Grid （E）Monitoring
device
（F）AC
circuit breaker
table 5-1 Cable Requirements
Specification
No. Cable Type
Cable Diame
ter(mm)
Cross-sectional Area(m
m
2
)
1 DC cable
PV cable complying
with 1,100V stan
dard
4.7 ~ 6.4 4 ~ 6
2
Power ca
ble for
tracking
system
Outdoor two-core
copper wire cable
8 ~ 18
0.5 ~
10（recommended
range: 4 ~
6）
3
Additional
grounding
cable
Outdoor sin
gle-core copper
wire cable
The same as that of the
PE wire in the AC cable
39

Sungrow SG125CX-P2 Specifications

General

Max. DC Voltage	1100 V
Rated AC Power	125 kW
Max. DC Power	150 kW
Start-up Voltage	200 V
MPPT Voltage Range	200 V - 1000 V
Max. Short-circuit Current per MPPT	40 A
Max. AC Power	137.5 kW
Max. AC Current	198 A
Rated AC Voltage	400 V
Rated Grid Frequency	50/60 Hz
Total Harmonic Distortion	<3%
Power Factor Adjustment Range	0.8 leading to 0.8 lagging
DC Connection Type	MC4
Protection Class	IP66
Maximum DC Input Power	150 kW
DC Inputs per MPPT	2
Cooling Method	Smart forced air cooling
Operating Temperature Range	-25°C to +60°C
Humidity Range	0 - 100%
Communication	RS485, Ethernet