APsystems Microinverter DS3 series Installation manual
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4. APsystems Microinverter System Installation
4.3.4 Step 4 - Ground the system
Y3 AC Bus cable has an embedded PE wire: this might be sufficient to ensure proper grounding of the whole
PV array. However, in areas with special grounding requirements, external grounding work may still be
needed, using the grounding lug supplied with the Microinverter
Figure 3
4.3.5 Step 5 - Connect the APsystems microinverter to AC bus cable
Insert the microinverter AC connector into the trunk cable connector. Make sure to hear the “click” as a proof of
robust connection
Figure 4
Best Practice: Use the AC Bus Cable Unlock Tool to disconnect the connectors.
Figure 5
Click
Grounding lug
