enphase IQ8 Design Manual page 38

Method B: End-feeding the branch circuit
For QD Cable SKUs QD-12-10-150 and QD-12-20-135, the voltage rise in the QD Cable is <1%.
Therefore, end feeding or center feeding methodology can be used for the three-phase AC
supply.
Use the Enphase three-phase Field Wireable QD Connectors (QD-CONN-10M and QD-CONN-
10F) for end feeding the AC supply to IQ8 Commercial Microinverter branch circuits. OR installers
can use off-the-shelf junction boxes for end feeding or center feeding the three-phase AC supply
to IQ8 Commercial Microinverter branch circuit.
NOTE: QD Cable SKUS QD-12-10-150 and QD-12-10-135 does not include separate center
tapping connector within the cable. Therefore, it is recommended to use an off-the-shelf
junction box for center feeding the three-phase AC supply.
Service type and voltage: L1-L2, L2-L3 and L3-L1
208 VAC three-phase
220 VAC three-phase
Step 6: Terminate the unused end of the cable
A. Remove 20 mm (0.8 inches) of the cable sheath from the conductors.
B. Slide the hex nut onto the cable.
C. Insert the cable into the terminator body so that each of the four wires lands on opposite sides of
the internal separators. There is a grommet inside of the hex nut that should remain in place.
D. To attach the cap:
1. Bend the wires down into the recesses of the terminator body and trim as
needed. Place the cap over the terminator body.
2. Insert a screwdriver into the slot on the terminator cap to hold it in place.
3. Rotate the hex nut with your hand or a wrench until the latching mechanism
meets the base. Do not over-torque.
E. Attach the terminated cable end to the PV racking with a cable clip or tie wrap so that the cable
and terminator do not touch the roof.
NOTE: Turn only the hex nut to prevent conductors from twisting out of the separator.
NOTE:
The terminator cannot be reused. If you unscrew the nut, you must discard the
terminator.
Step 7: Create an installation map
Create a paper installation map to record microinverter serial numbers and position in the array.
A. Peel the removable serial number label from each microinverter and affix it to the respective
location on the paper installation map.
B. Peel the label from the IQ Gateway Commercial 2 and affix it to the installation map.
C. Always keep a copy of the installation map for your records.
38
Figure 20: QD Terminator
© 2023 Enphase Energy Inc. All rights reserved.
IQ8 Commercial Microinverter grid-tied PV system
183 to 229 VAC
198 to 242 VAC
November 2023
USG-00026-1.0