Sungrow SG125HV, User Manual

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6 Electrical Connection User Manual
56
PV+ PV-
PE
PV+
PV-
PE

When accessing the positive and negative cable, it is necessary to
ensure the insulation requirements between the positive access and
the negative access. Once positive and negative inputs are
short-circuited, it can cause unrecoverable damage to the inverter.
Sungrow shall hold no liability for any possible consequences caused
by ignorance of this warning.

Check the positive and negative polarity of the PV cells. After
confirmation, you can insert the DC connectors into the input
terminals on the bottom of the inverter.

For the connection to the same MPPT, reversing the polarity of a
single string is prohibited. A permanent failure of the system or
inverter may occur.
Step 6
Pull the cable gently to make sure it is secured.
Step 7
Connect other PV strings following the above-mentioned procedures.
Step 8 Seal the gaps between the DC cable and the gland inside the lower part of
the cabinet with duct seal.
Seal the gap between the cable and the gland
/
conduit with duct seal
or other suitable materials to prevent the entry of foreign bodies or