M215 Installation and Operation
2013 Enphase Energy Inc. 141-00012 Rev 05
Step 9: Connect the Engage Cable to AC Junction Box(es)
a. Connect Engage Cable into the AC branch
circuit junction box using an appropriate
gland or strain relief fitting. The Engage
Cable requires a strain relief connector
with an opening of 1.3 cm (0.5 inches) in
diameter.
b. Connect the Engage Cable into additional
AC junction boxes as needed to transition
to conduit between smaller sub-arrays.
Refer to the wiring diagrams located on
page 33 for more information.
240 Volt AC Split Phase Wiring
208 Volt AC Three-Phase Wiring
Black: L1
Red: L2
White: Neutral
Green: Ground
Black: L1
Red: L2
Blue: L3
White: Neutral
Green: Ground
NOTE: The green wire acts as equipment ground (EGC). A continuous GEC for system
ground is also required as described in “Step 5: Ground the System”.
Wires are identified as follows: L1 is sheathed in Black, L2 is sheathed in red, L3 is sheathed
in blue, Neutral is sheathed in white, and Ground is sheathed in green. The grounding wire is
used to ground the microinverters. A continuous ground is required in addition to this green
grounding wire.
Balanced 208 VAC (three-phase) is accomplished by alternating phases between
microinverters as shown:
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