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

Planning for Microinverter Installation

The Enphase IQ 7 Micro is 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 Q Cable is available with connector spacing options to accommodate installation of PV
modules in portrait or landscape orientation. For Enphase Q Cable ordering information, see "Enphase Q
Cable Planning and Ordering" on page 27.

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 29 of this manual. You can refer to the Enphase
Compatibility Calculator at:
electrical compatibility. 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 Connector type
model
IQ7-60-2-US MC-4 locking type
IQ7A-72-2-US MC-4 locking type
IQ7PLUS-72-2-US MC-4 locking type
IQ7X-96-2-US MC-4 locking type
*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 on page 29 for more information.

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.
10
IQ 7 / IQ 7+ / IQ 7X / IQ 7A Micro Installation and Operation
enphase.com/en-us/support/module-compatibility
PV module* cell count
Pair only with 60-cell / 120-half-cell
Pair with 60-cell / 120-half-cell and 72-cell / 144-half-cell PV modules.
Pair with 60-cell / 120-half-cell and 72-cell / 144-half-cell PV modules
Pair only with 96-cell modules
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to verify PV module
141-00043-03