IQ7/IQ7+/IQ7X/IQ7A Microinverters Installation and Operation Manual
17 © 2023 Enphase Energy Inc. All rights reserved. September 2023
IOM-00028-1.0
Step 1: Position the IQ Cable
• Plan each cable segment to allow drop connectors on the IQ Cable to align with each PV
module. Allow extra length for slack, cable turns, and any obstructions.
• Mark the approximate centers of each PV module on the PV racking.
• Lay out the cabling along the installed racking for the AC branch circuit.
• Cut each segment of cable to meet your planned needs.
WARNING: When transitioning between rows, secure the cable to the rail to
prevent cable damage or connector damage. Do not count on the connector to
withstand tension.
Step 2: Position the junction box
A. Verify that the AC voltage at the site is within range.
Service type and voltage: L1-L2
240 VAC split-phase 211 to 264 VAC
208 VAC
183 to 229 VAC
NOTE: All 208 VAC installations require that you use the IQ Gateway to commission
the Enphase microinverters to propagate correct grid profile settings for 208 VAC
trip points.
The IQ7A Microinverter has the same power rating at 208 V L1-L2 as the IQ7+
Microinverters.
B. Install an Enphase IQ Aggregator or junction box at a suitable location on the racking.
C. Provide an AC connection from the junction box back to the electricity network using
equipment and practices as required by local jurisdictions.
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