enphase IQ8 Design Guide

IQ8 Commercial Microinverter grid-tied PV system
12 © 2023 Enphase Energy Inc. All rights reserved. November 2023
USG-00026-1.0
Consumption
CT
CT-600-
SPLIT
-
600 A - 3
CTs
Optional
Cell Modem
CELLMODEM-
M1-06-SP-05
or
CELLMODEM-
M1-06-
AT-05
- -
Power Line
Filters
Astrodyne Filters -
QD-LCF-
400-3P (400
A)
Surge
suppression
system
Surge protectors
Example: Citel DS73RS-120 surge protector; data sheet.
www.citel.us/data_sheets/ac/DS70R-DataSheet.pdf
2 IQ8 Commercial system design considerations
2.1 IQ8 Commercial Microinverters
The high-powered, smart-grid-ready IQ8 Commercial Microinverter is an advanced
microinverter. Each IQ8 Commercial Microinverter supports one PV module and has greater than
97% CEC efficiency for three-phase 208 V applications with peak output power ratings of 384
and 480 watts.
Figure 2: IQ8 Commercial Microinverters
IQ8 Commercial Microinverters have an output configuration of a 4-pin (L1, L2, L3, and N) AC
connector with power on two pins and phase sensing on the other two pins. Three-phase
configuration and phase balancing are achieved using the three-phase QD Cable. The following
topics describe the design considerations for IQ8 Commercial Microinverters.
2.1.1 Module compatibility
The Enphase IQ8 Commercial Microinverters are electrically and mechanically compatible with
PV modules, as listed in Table 2. To verify PV module electrical compatibility with IQ8 Commercial
Microinverter, refer to the Enphase Compatibility Calculator at
https://enphase.com/en-
us/support/module-compatibility.

enphase IQ8 Specifications

General

Model	IQ8
Manufacturer	Enphase Energy
Efficiency	97.5%
Cooling	Natural convection
Warranty	25 years
Weight	2.2 lbs
AC Voltage	240 V
Frequency Range	60 Hz
Operating Temperature Range	-40°C to +60°C