IQ7/IQ7+/IQ7X/IQ7A Microinverters Installation and Operation Manual
12 © 2023 Enphase Energy Inc. All rights reserved. September 2023
IOM-00028-1.0
2 Planning for microinverter installation
The Enphase IQ7 Series Microinverters are compatible with PV modules, as listed in the following table.
The microinverter housing is designed for outdoor installation and complies with the NEMA 250, type
6 environmental enclosure rating standard:
NEMA 6 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 IQ Cable is available with connector spacing options to accommodate the installation of
PV modules in portrait or landscape orientation. For IQ Cable ordering information, see IQ Cable
Planning and Ordering.
2.1 Compatibility
The Enphase IQ Series Microinverters are electrically compatible with PV modules, as listed in the
following table. For specifications, see Technical Data. You can refer to the Enphase Compatibility
Calculator to verify PV module electrical compatibility. To ensure mechanical compatibility, be sure to
order the correct connector type for both the 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 Connector type PV module* cell count
IQ7-60-2-US MC-4 locking type Pair only with 60-cell/120-half-cell
IQ7A-72-2-US MC-4 locking type Pair with 60-cell/120-half-cell and 72-cell/144-half-cell PV
modules.
IQ7PLUS-72-2-US MC-4 locking type Pair with 60-cell/120-half-cell and 72-cell/144-half-cell PV
IQ7X-96-2-US MC-4 locking type Pair only with 96-cell modules
*Enphase IQ Series Microinverters are compatible with bifacial PV modules if the temperature-adjusted
electrical parameters (maximum power, voltage, and current) of the modules, considering the front side
electrical parameters (i.e., 0% back side gain), are within the allowable microinverter input parameters range.
See Technical Considerations for more information.
2.2 Grounding considerations
The Enphase microinverter models listed in this guide do not require grounding electrode conductors
(GEC), equipment grounding conductors (EGC), or grounded conductor (neutral). Your Authority
Having Jurisdiction (AHJ) may require you to bond the mounting bracket to the racking. If so, use
UL2703 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.
To Next Page
Loading...
