Sungrow SG20RT User Manual

4
• Check the positive and negative polarity of the PV strings, and connect the PV
connectors to corresponding terminals only after ensuring polarity correctness.
• During the installation and operation of the inverter, please ensure that the posi-
tive or negative poles of PV strings do not short-circuit to the ground. Other-
wise, an AC or DC short-circuit may occur, resulting in equipment damage. The
damage caused by this is not covered by the warranty.
Comply with the safety instructions related to PV strings and the regulations re-
lated to the local grid.
1.4 Operation Safety
When routing cables, ensure a distance of at least 30 mm between the cables and
heat-generating components or areas to protect the insulation layer of cables from
aging and damage.
When the product is working:
• Do not touch the product enclosure.
• It is strictly forbidden to plug and unplug any connector on the inverter.
• Do not touch any wiring terminal of the inverter. Otherwise, electric shock may
occur.
• Do not disassemble any parts of the inverter. Otherwise, electric shock may
occur.
• It is strictly forbidden to touch any hot parts of the inverter (such as the heat
sink). Otherwise, it may cause burns.
• Do not connect or remove any battery. Otherwise, electric shock may occur.
• Do not connect or remove any PV string or any PV module in a string. Other-
wise, electric shock may occur.
• If the inverter is equipped with a DC switch, do not operate it. Otherwise, it may
cause device damage or personal injury.
1 Safety Instructions User Manual

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