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During the installation and operation of the inverter, please ensure that the positive
or negative polarities of batteries do not short-circuit to the ground. Otherwise, an
AC or DC short-circuit may occur, resulting in equipment damage. The damage
caused by this is not covered by the warranty.
If the hybrid inverter is not connected to a battery, it will not support reliably the
backup function.
The battery should be connected to the common grounding of the house (PE Bar)
rather than directly to the inverter PE.
The energy in the battery will not backfeed into the PV modules.
6.9.1 Connecting the Power Cable
Do not connect loads between the inverter and the battery. The battery cables
should be connected correctly. That is, the positive and negative terminals of the
battery connect to the positive and negative terminals on the inverter respectively.
Otherwise, the inverter may be damaged, or even a fire could happen.
All power cables are equipped with water-proof direct plug-in connectors, which match the
battery terminals at the bottom of the inverter.
The Sungrow SBR batteries are equipped with a DC circuit breaker, If there is no
DC circuit breaker inside the battery, install an external DC circuit breaker be-
tween the inverter and the battery to ensure that the inverter can be safely discon-
nected from the battery. Ensure that cables are correctly connected between the
external DC circuit breaker and the battery, and between the external DC circuit
breaker and the inverter.
6.9.1.1 Assembling the SUNCLIX Connector
During assembly, be careful not to contaminate, pull out, or shift, the seal in the ca-
ble gland. A contaminated or shifted seal impairs strain relief and leak tightness.
User Manual 6 Electrical Connection
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