APsystems DS3 Series - 4.4.4 Step 4 - Ground the systems; 4.4.5 Step 5 - Connect the APsystems microinverter to AC bus cable

APsystems DS3 series Installation Manual
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4.APsystems Microinverter System Installation
AC connector interface as shown below.
Figure 6
Cover any unused connectors with a Bus Cable Y-CONN cap to protect the unused connectors.
Figure 7
4.3.6 Step 6 - Install a Bus Cable End Cap at the end of AC bus cable
a. Strip cable jacket. c. Insert the wires into the cable clamps.
b. Insert the cable end into the seal. d. Rotate the nut with 3.3N·m until the
latching mechanism meets the base.
Figure 8
Nut
Seal
Body