Electrical Connection
17
User Manual V1.3-2022-11-18
WARNING
• The PE cable connected to the enclosure of the inverter cannot replace the PE cable
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connected.
• 0DNHVXUHWKDWDOOWKHJURXQGLQJSRLQWVRQWKHHQFORVXUHVDUHHTXLSRWHQWLDOFRQQHFWHG
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.
• 7KH3(FDEOHLVSUHSDUHGE\WKHFXVWRPHU5HFRPPHQGHGVSHFLࢉFDWLRQV
• 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
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WKHLQYHUWHUPD\EHGDPDJHGSHUPDQHQWO\RUHYHQFDXVHࢉUHDQGFDXVHSHUVRQDODQGSURSHUW\
losses.
1. 0DNHVXUHWKDWWKHPD[VKRUWFLUFXLWFXUUHQWDQGWKHPD[LQSXWYROWDJHSHU0337DUHZLWKLQ
the permissible range.
2. 0DNHVXUHWKDWWKHSRVLWLYHSROHRIWKH39VWULQJFRQQHFWVWRWKH39RIWKHLQYHUWHU$QGWKH
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.
• 7KH'&LQSXWFDEOHLVSUHSDUHGE\WKHFXVWRPHU5HFRPPHQGHGVSHFLࢉFDWLRQV
• 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
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