Planning For Microinverter Installation; Compatibility; Grounding Considerations - enphase IQ 7 Installation And Operation Manual

Planning for Microinverter Installation

•
The Enphase IQ 7 Microinverter is compatible with 60-cell PV modules.
•
The IQ 7+ and IQ 7A Microinverters support PV modules with 60 cells / 120-half-cells or 72
cells / 144-half-cells.
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The IQ 7X requires a 96-cell PV module.
All install quickly and easily. The microinverter housing is designed for outdoor installation and
complies with the IP67 environmental enclosure rating standard:
IP67 rating definition: Indoor or outdoor use primarily to provide a degree of protection
against hose-directed water, the entry of water during occasional temporary submersion at
a limited depth, and damage from external ice formation
The Enphase Q Cable is available in multiple connector spacing options for landscape and portrait
orientations to meet varying site requirements. For Enphase Q Cable ordering information, see
"Enphase Q Cable Planning and Ordering" on page 26.

Compatibility

The Enphase IQ Series Micros are electrically compatible with PV modules as listed in the following
table. For specifications, see "Technical Data" on page 27 of this manual. You can refer to the
Enphase Compatibility Calculator at:
To ensure mechanical compatibility, be sure to order the correct connector type for both
microinverter and PV module from your distributor.
WARNING: Risk of fire. The PV module DC conductors must be labeled "PV Wire" or "PV
Cable" to comply with NEC for Ungrounded PV Power Systems.
Microinverter model
IQ7-60-2-INT
IQ7PLUS-72-2-INT, IQ7A-72-2-INT
IQ7X-96-2-INT
NOTE: Some Enphase Microinverters will not begin exporting power until the Envoy is
installed and has detected all of the microinverters at the site. In addition, the grid profile
may need to be configured and the Envoy must have propagated these settings to the
microinverters. For instructions on this procedure, refer to the Envoy Installation and
Operation Manual at enphase.com/support.

Grounding Considerations

The IQ Series Micros do not require grounding electrode conductors (GEC) or equipment grounding
conductors (EGC). Your Authority Having Jurisdiction (AHJ) may require you to bond the mounting
bracket to the racking. If so, use earthing hardware or star washers. The microinverter itself has a
Class II double-insulated rating, which includes ground fault protection (GFP). To support GFP, use
only PV modules equipped with DC cables labeled PV Wire or PV Cable.
9
IQ 7 / IQ 7+ / IQ 7X / IQ 7A Installation and Operation
module-compatibility
Connector type
MC-4 locking type
MC-4 locking type
MC-4 locking type
© 2020 Enphase Energy Inc. All rights reserved.
to verify PV module electrical compatibility.
PV module cell count
Pair only with 60-cell modules
Pair with 60 cell / 120-half-cell modules or 72
cell / 144-half-cell modules.
Pair only with 96-cell modules
141-00044-02