IQ8AC/IQ8HC Installation and Operation Manual
28 © 2023 Enphase Energy Inc. All rights reserved. June 2023
USM-00005-2.0
8. Specifications
Refer to the specifications in the following table for the IQ8 Series Microinverters:
• IQ8AC-72-M-INT Microinverters
• IQ8HC-72-M-INT Microinverters
IQ8AC-72-M-INT Microinverter specifications
IQ8AC-72-M-INT Microinverter parameters
Maximum input power
1,2
W 480
Minimum/Maximum MPP voltage V 28 45
Minimum/Maximum operating voltage
18 49
Minimum/Maximum input voltage
18 60
Start-up input voltage
22
Maximum input current (I
dcmax
) A 14
Maximum short-circuit DC input current (I
scmax
) A 25
3
Protective class (all ports) II
PV array configuration
1x1 ungrounded array; no additional DC side
protection required; AC side protection requires max
20 A (single-phase or multi-phase)
AC parameters
Rated power W 360
Maximum apparent power VA 366
Power factor range 0.8 leading … 0.8 lagging
Minimum/Nominal/Maximum grid voltage
4
Vrms 184 230 276
Maximum output current
Arms 1.59
Nominal frequency Hz 50
Minimum/Maximum frequency Hz 45 55
Maximum AC output over current protection device A
20 A single-phase and 25 A multi-
phase
High AC voltage trip limit accuracy % ±1.0
Low AC voltage trip limit accuracy % ±1.0
Frequency trip limit accuracy Hz ±0.1
Trip time accuracy (for trip times or delays < 5 sec.) ±ms 33
Trip time accuracy (for trip times or delays >= 5 sec.) % 1
Overvoltage class AC port III
Power factor setting 1.0
1. No enforced DC/AC ratio. See the compatibility calculator at https://enphase.com/en-au/installers/microinverters/calculator
2. Installer should not exceed the small-scale technology certificate (STC) limit on PV module wattage for claiming the STC.
3. Maximum short circuit current for modules (Isc) allowed to be paired with IQ8 Series Microinverters: 20 A (calculated with 1.25 safety
factor as per IEC 62548)
4. Nominal voltage range can be extended beyond nominal if required by the electricity network operator.
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