APsystems Microinverter DS3D User 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 Bus Cable Unlock Tool of AC Bus to disconnect the connectors.
Figure 5
Check the microinverter technical data on page 19 to confirm maximum allowable
number of microinverters on each AC branch of the circuit.
Click
Grounding lug
