Compatibility; Grounding Considerations; Branch Circuit Capacity - enphase IQ7 Installation And Operation Manual

NOTE: 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 IQ Cable is available in multiple connector spacing options for landscape and portrait orientations to
meet varying site requirements. For more information on IQ Cable ordering information, see
planning and ordering in this manual.

Compatibility

The IQ Series Microinverters are electrically compatible with PV modules as listed in the following table. For
more information on specifications, see
Compatibility Calculator at
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 labelled "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 IQ
and has detected all the microinverters at the site. In addition, the grid profile may need to be
configured and the IQ
instructions on this procedure, refer to the IQ
enphase.com/support.

Grounding considerations

The IQ Series Microinverters 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 labelled PV wire or PV cable.

Branch circuit capacity

Plan your AC branch circuits to meet the following limits* for the maximum number of microinverters per
branch when protected with a 20 A over-current protection device (OCPD). For most multi-phase
installations, use a 3-pole 20 A OCPD. If installing the IQ7A, use a 3-pole 25 A OCPD.
12
IQ7+/IQ7X/IQ7A Microinverters Installation and Operation Manual
Technical data
module-compatibility to verify PV module electrical compatibility. To ensure
Connector type
MC-4 locking type
MC-4 locking type
MC-4 locking type
must have propagated these settings to the microinverters. For
Gateway
© 2023 Enphase Energy Inc. All rights reserved.
in this manual. You can refer to the Enphase
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
Installation and Operation Manual at
Gateway
IQ Cable
is installed
Gateway
August 2023
USM-00003-1.0