Electrical Connection
16
User Manual V1.0-2022-05-05
WARNING
• The PE cable connected to the enclosure of the inverter cannot replace the PE cable
connected to the AC output port. Make sure that both of the two PE cables are securely
connected.
•
Make sure that all the grounding points on the enclosures are equipotential connected
when there are multiple inverters.
• To improve the corrosion resistance of the terminal, you are recommended to apply silica
gel or paint on the ground terminal after installing the PE cable.
•
The PE cable is prepared by the customer. Recommended specifications:
• Type: single-core outdoor copper cable
• Conductor cross-sectional area: 4mm
2
6.2 Connecting the PE Cable
6.3 Connecting the PV Input Cable
DANGER
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.
WARNING
• Connect the DC cables using the delivered PV connectors. The manufacturer shall not be
liable for the damage if other connectors are used.
• The PV strings cannot be grounded. Ensure the minimum isolation resistance of the
PV string to the ground meets the minimum isolation resistance requirements before
connecting the PV string to the inverter.
•
The DC input cable is prepared by the customer. Recommended specifications:
• Type: the outdoor photovoltaic cable that meets the maximum input voltage of the
inverter.
• Conductor cross-sectional area: 2.5~4mm
2
(Devalan) or 4~6mm
2
(MC4).
(
MC4)
Copper,
