Sungrow SG20RT User Manual

31
The cable colors in figures in this manual are for reference only. Please select ca-
bles according to local cable standards.
5.2 Terminal Description
All electrical terminals are located at the bottom of the inverter.
figure 5-1 Terminals (SG20RT for example)
* The image shown here is for reference only. The actual product received may differ.
table 5-1 Terminal Description
No. Name
Description
Decisive Volt-
age
Classification
1
PV1+, PV1–, PV2+,
PV2–, PV3+, PV3–,
PV4+, PV4–
MC4 terminals for PV input.
The terminal number depends on in-
verter model.
DVC-C
2 COM1
Communication accessory port to be
connected to WiNet-S/WiNet-S2 for
countries except Brazil or to WiFi for
Brazil.
DVC-A
3 AC
AC terminal to connect to the grid.
DVC-C
4
External grounding terminal. Not applicable
5 COM2
Communication connection for DI/
DRM, DO, Logger and smart energy
meter.
DVC-A
The pin definition of COM2 terminal is shown in the following label.
User Manual 5 Electrical Connection

Sungrow SG20RT Specifications

General

Model	SG20RT
Category	Inverter
Max. DC Voltage	1100 V
Rated AC Power Output	20 kW
Max. Efficiency	98.6%
Max. DC Input Power	30 kW
Max. Input Voltage	1100 V
Start Voltage	200 V
Number of MPPTs	2
Number of DC Inputs per MPPT	2
Max. AC Apparent Power	22 kVA
Rated Grid Frequency	50 Hz / 60 Hz
Max. Output Current	32 A
Power Factor at Rated Power	>0.99
THDi	<3%
DC Switch	Yes
Protection Class	IP65
Cooling Method	Natural Convection
Protection Degree	IP65
Protection Level	IP65
MPPT Voltage Range	200 V - 1000 V
Operating Temperature Range	-25°C to +60°C
Input Voltage Range	200 V - 1000 V
MPPT Range	200 V - 1000 V
AC Voltage Range	310 V - 480 V