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

Compatibility

The Enphase IQ Series Microinverters are electrically compatible with PV modules, as listed in the following
table. For specifications, see the
compatibility calculator
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 the NEC for ungrounded PV power systems.
Microinverter model
IQ7PLUS-72-2-INT, IQ7A-72-2-INT
NOTE: IQ Series Microinverters will not begin exporting power until the IQ Gateway is installed and
has detected all the microinverters at the site. In addition, the grid profile may need to be
configured, and the IQ Gateway must have propagated these settings to the microinverters. For
instructions on this procedure, refer to the IQ Gateway Installation and Operation Manual at the
documentation

Earthing considerations

The microinverter has a Class II double-insulated rating, which includes ground fault protection (GFP). Refer
to local electrical codes and standards for earthing requirements of PV array and racking.

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 MCB/fuse over the current protection device. For most three-phase
installations, use a 4-pole 20 A MCB/fuse.
Maximum* IQ Microinverters per AC branch circuit
Microinverter model
Single-phase
Three-phase
*Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area.
11
Technical specifications
to verify PV module electrical compatibility. To ensure mechanical compatibility, be
Connector type
MC-4 locking type
centre.
IQ7PLUS
12
36 (12 per phase branch circuit)
© 2023 Enphase Energy Inc. All rights reserved.
IQ7+ and IQ7A Installation and Operation Manual - India
in this manual. You can refer to
PV module cell count
60 cell/120 half-cell
66-cell/132 half-cell
72 cell/144 half-cell
IQ7A
30 (10 per phase branch circuit)
Enphase
10
August 2023
USM-00002-1.0