Enphase Microinverter > IQ 8AC 366W 240/208V Split Phase MC4 Micro Inverter - IQ System "M" Series
Enphase's newest IQ8 Series Microinverters are the industry’s first microgrid-forming*, softwaredefined
microinverters with split-phase power conversion capability to convert DC power to
AC power efficiently. The brain of the semiconductor-based microinverter is our proprietary
application-specific integrated circuit (ASIC), which enables the microinverter to operate in
grid-tied or off-grid modes. This chip is built in advanced 55 nm technology with high-speed
digital logic and has superfast response times to changing loads and grid events, alleviating
constraints on battery sizing for home energy systems.
*Meets UL 1741 only when installed with IQ System Controller 2 and 3.
IQ8 Series Microinverters are UL Listed as PV Rapid Shut Down Equipment and conform with various regulations, when installed according to manufacturer’s instructions.
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Model
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IQ8AC-72-M-US
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Series
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IQ8
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Manufacturer
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Enphase Energy
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NOTE: To ensure the best installation experience, Enphase is requiring that installers complete IQ8 training and certification online
to enable IQ8 system commissioning in the field
. For Enphase PV-certified installers, IQ8 training is an add-on qualification course and
for those who are non-certified installers you can access the training by
completing an online assessment through
Enphase University
.
We recommend having 100% of your installers take this certification course if you do Enphase installations.
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Mechanical
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Type
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Grid Tie - Micro Inverter
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Ambient Temperature Range
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-40°C to +65°C
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Relative humidity range
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4% to 100% (condensing)
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Approved for wet locations; Pollution degree
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Yes; PD3
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Enclosure
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Class II double-insulated, corrosion resistant polymeric enclosure
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Environmental category / UV exposure rating
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NEMA Type 6 / outdoor
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Cooling
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Natural Convection - No fans
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Connectors
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Stäubli MC4
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Dimensions (W x H x D)
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8.3" x 6.9" x 1.19" (without bracket)
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Weight
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2.43 lbs
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Shipping Method
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Ground
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Input (DC)
Commonly used module pairings:
Recommended PV Power (STC)
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295 W–500 W
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Module compatibility
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To meet compatibility, PV modules must be within the maximum input DC voltage and maximum module Isc listed below.
Module compatibility can be checked at
https://enphase.com/installers/microinverters/calculator.
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MPPT voltage range
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28 – 45 V
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Operating Range
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18 - 58 V
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Min/Max Start Voltage
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22 V / 58 V
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Max input DC voltage
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60 V
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Max. continuous input DC current
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14 A
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Max DC short circuit current (module Isc)
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25 A
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Max. module | ISC
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20 A
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Overvoltage class DC port
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II
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DC port backfeed current
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0 A
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PV array configuration
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Ungrounded array; no additional DC side protection required; AC side protection requires max 20 A per branch circuit
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Output (AC)
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Peak Output Power
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366 VA @240 VAC
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350 VA @ 208 VAC
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Maximum continuous output power
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349 VA @240 VAC
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345 VA @ 208 VAC
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Nominal grid voltage (L-L)
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240, split-phase (L-L), 180°
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208, single-phase (L-L), 120°
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Minimum and maximum grid voltage
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211-264 V @240 VAC
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183-229 V @ 208 VAC
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Max. continuous output current
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1.45 A
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1.66 A
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Nominal frequency
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60 Hz
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Extended frequency range
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47 - 68 Hz
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AC short circuit fault current over three cycles Arms
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2.70
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Max units per 20 A (L-L) branch circuit
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11
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9
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Total harmonic distortion %
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< 5
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Overvoltage class AC port
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III
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AC port backfeed current
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18 mA
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Power factor setting
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1.0
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Grid-tied power factor (adjustable)
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0.85 leading ... 0.85 lagging
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Peak efficiency %
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97.3 @240 VA
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97.2 @208 VA
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CEC weighted efficiency %
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97.0 @240 VA
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96.5 @208 VA
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Nighttime power consumption
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30 mW @240 VA
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22 mW @208 VA
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Features
Easy to Install
- Lightweight and compact with plug-n-play connectors
- Power Line Communication (PLC) between components
- Faster installation with simple two-wire cabling
High productivity and reliability
- Produce power even when the grid is down
- More than one million cumulative hours of testing
- Class II double-insulated enclosure
- Optimized for the latest high-powered PV modules
Grid-forming
- Complies with the latest advanced grid support
- Remote automatic updates for the latest grid requirements
- Configurable to support a wide range of grid profiles
- Meets CA Rule 21 (UL 1741-SA) and IEEE 1547:2018 (UL 1741-SB)
Detailed Description
Enphase's IQ8 Microinverters are the industry’s first grid-forming microinverters with split-phase power conversion capability to convert DC power to AC power efficiently. The brain of the semiconductor-based microinverter is a proprietary application-specific integrated circuit (ASIC) that enables the microinverter to operate in grid-tied or off-grid modes. This chip is built in advanced 55nm technology with high speed digital logic and has super-fast response times to changing loads and grid events, alleviating constraints on battery sizing for home energy systems.
