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The multi-phase IQ Relay also provides phase coupling to allow microinverters on all
phases to communicate with the IQ Gateway. Use a Legrand Phase Coupler (LPC-01) for
a multi-phase system for phase coupling if IQ Relay is not installed in the multi-phase
system.
Technical data
Technical considerations
Be sure to apply the following when installing the Enphase IQ8P Microinverters System:
WARNING: Risk of equipment damage. You must match the DC operating voltage range
of the PV module with the allowable input voltage range of the Enphase microinverter.
WARNING: Risk of equipment damage. The maximum open circuit voltage of the PV
module must not exceed the specified maximum input voltage of the Enphase
microinverter.
• PV modules must have conductors labeled "PV Wire" or "PV Cable".
• Verify that the voltage and current specifications of the PV module match those
of the microinverter.
• The maximum short circuit current rating of the PV module must be equal to or less than
the maximum input DC short circuit current rating of the microinverter.
The output voltage and current of the PV module depend on the quantity, size, and temperature of
the PV cells, as well as the insolation of each cell. The highest PV module output voltage occurs when
the temperature of the cells is the lowest and the PV module is at an open circuit (not operating).
Bifacial modules
Enphase IQ8P Microinverters are compatible with bifacial PV modules if the temperature-adjusted
electrical parameters (maximum power, voltage, and current) of the modules, considering the
electrical parameters including the bifacial gain, are within the allowable microinverter input
parameters range. In evaluating the amount of bifacial gain, follow the recommendations of the
module manufacturers.
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IQ8P Microinverter Installation and Operation Manual
© 2023 Enphase Energy Inc. All rights reserved.
September 2023
IOM-00001-1.0
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