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06 Electrical Connection
6.5 Connecting the DC Input Cable(PV)
• Do not connect one PV string to more than one inverter at the same time. Otherwise, it may
cause damage to the inverter.
• Confirm the following information before connecting the PV string to the inverter. Otherwise,
the inverter may be damaged permanently or even cause fire and cause personal and
property losses.
1. Make sure that the max short circuit current and the max input voltage per MPPT are
within the permissible range.
2. Make sure that the positive pole of the PV string connects to the PV+ of the inverter. And
the negative pole of the PV string connects to the PV- of the inverter.
The PV strings cannot be grounded. Ensure the minimum insulation resistance of the
PV string to the ground meets the minimum insulation resistance requirements before
connecting the PV string to the inverter (R=maximum input voltage/ 30mA). If the insulation
resistance value is less than above requirement, it will trigger the insulation resistance
alarming in the inverter.
MC4
1
7~8mm
7~8mm
4mm
≤S≤6mm
2
2
DANGER
WARNING
Click
30
User Manual V1.1-2023-06-20
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