Planning For Microinverter Installation - enphase IQ8 Series Installation And Operation Manual

3. Planning for microinverter installation

The IQ8AC and IQ8HC Microinverters support PV modules with 54-cell/108-half-cell, 60-cell/120-
half-cell, 66-cell/132-half-cell, and 72-cell/144-half-cell configurations.
No enforced DC/AC ratio and maximum input power. Modules can be paired as long as the maximum
input voltage is not exceeded and the maximum input current of the inverter at the lowest and highest
temperatures is respected. Installer should not exceed the small-scale technology certificate (STC)
limit on PV module wattage for claiming the STC.
See the compatibility calculator at
IQ8 Series Microinverters 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 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" on page 24.
Compatibility
The IQ8 Series Microinverters 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:
module electrical compatibility. To ensure mechanical compatibility, the microinverter's male and
female connectors must only be mated with the identical type and brand of male/female connector.
IMPORTANT: The IQ8 Series Microinverters include both AC and DC connectors integrated into the
bulkhead. The AC port connects to IQ Cable or IQ Field Wireable Connector. The DC port has been
evaluated by TUV for interminability with Stäubli made MC4 connectors, whose cable coupler models
are "PV-KST4/...-UR, PV-KBT4/...-UR, PV-KBT4-EVO2/...-UR, and PV-KST4-EVO2/...-UR". The DC port of
the inverter must be mated with Stäubli made MC4 connectors.
Microinverter model
IQ8AC-72-M-INT
IQ8HC-72-M-INT
NOTE: IQ8 Series Microinverters will not begin producing power until the IQ Gateway is installed
and has detected all the microinverters at the site. The grid profile needs to be configured and the
IQ Gateway must have propagated these settings to the microinverters. Refer to the IQ Gateway
Installation and Operation Manual at
https:/ /enphase.com/en-au/installers/resources/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.
11
https:/ /enphase.com/en-au/installers/microinverters/calculator.
https:/ /enphase.com/en-au/installers/microinverters/calculator
Connector type
Stäubli MC4
Stäubli MC4
© 2023 Enphase Energy Inc. All rights reserved.
IQ8AC/IQ8HC Installation and Operation Manual
PV module cell count
Pair with 54-cell/108-half-cell, 60-
cell/120-half-cell, 66-cell/132-half-cell,
72-cell/144-half-cell
to verify PV
June 2023
USM-00005-2.0