Sungrow SG125CX-P2 User Manual

User Manual 5 Electrical Connection
NOTICE
Ensure that the selected terminal can directly contact with the copper bar. If there are
any problems, contact the terminal manufacturer.
Ensure that the copper bar is not in direct contact with the aluminum wire. Otherwise,
electrochemical corrosion may occur, impairing the reliability of electrical connection.
5.5 External Protective Grounding Connection
DANGER
Electric shock!
• Make sure that the grounding cable is connected reliably. Otherwise, it may cause
electric shock.
WARNING
• Since the inverter is not equipped with a transformer, neither the negative elec
trode nor the positive electrode of the PV string can be grounded. Otherwise, the
inverter will not operate normally.
• Connect the grounding terminal to the external protective grounding point before
AC cable connection, PV string connection, and communication cable connection.
• The external protective grounding point provides a reliable ground connection. Do
not use an improper grounding conductor for grounding, Otherwise, it may cause
product damage or personal injury.
• Depending on Local Rules, please also ground the PV panel subconstruction to the
same common grounding point (PE Bar) in addition to local lightning protection
rules.
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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