Name: Enphase IQ8MC 330VA Solar Microinverter, MC4, 240V – IQ8MC-72-M-US-NFC
Brand: Enphase
SKU: USSSP202-888
Price: 149.99 USD
Availability: InStock

Enphase IQ8MC Microinverter with MC4 Connectors

240V / 208V | IQ8MC-72-M-US-NFC

320VA Continuous Output at 240V | 330VA Peak Output at 240V | Integrated MC4 Connectors
Convert solar power at the panel level with the Enphase IQ8MC. Designed for compatible PV modules and integration with the Enphase Energy System.

Inventory and Financing Eligibility Note

This inventory was manufactured before November 10, 2025. The supplier identifies affected units by serial numbers beginning with 53XXXX or 54XXXX, where XXXX is less than 2545. These units may not meet every financing provider’s Approved Vendor List requirements beginning January 1, 2026. Confirm acceptance with your financing provider before ordering if your project requires an approved equipment list.

Solar Power Conversion at Each Panel

The Enphase IQ8MC converts DC electricity from an individual solar panel into AC electricity for your system. Each microinverter tracks its connected module independently, allowing panels to operate at their own maximum power points.

The IQ8MC supports 240V split-phase and 208V line-to-line applications. It provides 320VA of maximum continuous output at 240V or 310VA at 208V, with peak conversion efficiency of 97.4% and 97.2%, respectively.

Integrated Stäubli MC4 DC connectors, compact dimensions, and fanless cooling make it a practical option for compatible rooftop solar installations.

Product Highlights

Module-level DC-to-AC power conversion
320VA maximum continuous output at 240V
310VA maximum continuous output at 208V
330VA peak output at 240V / 315VA at 208V
97.4% peak efficiency at 240V
Commonly paired with 260W to 460W solar modules, subject to electrical compatibility
25–45V MPPT voltage range
Integrated Stäubli MC4 DC connectors
Power line communication with compatible Enphase equipment
NEMA Type 6 outdoor enclosure
Natural convection cooling with no fans
UL Listed as PV rapid shutdown equipment when installed as instructed
Up to 25-year limited manufacturer warranty

Perfect For

Residential rooftop solar installations
Compatible 240V split-phase solar systems
Approved 208V line-to-line installations
Arrays requiring independent panel-level power tracking
Systems using Enphase monitoring and energy management equipment
Backup-capable Enphase systems with the required supporting equipment

IQ8 Microgrid-Forming Technology

The IQ8 platform uses Enphase’s application-specific integrated circuit to respond to changing loads and grid conditions. It supports microgrid-forming functionality within an appropriately configured Enphase system.

Backup and off-grid operation require compatible system control, isolation, and other supporting equipment. The microinverter alone does not provide usable backup power during an outage.

The supplied datasheet identifies IQ System Controller 2 and 3 for the listed microgrid-forming configuration. Confirm the approved equipment combination and installation requirements for your project.

Monitoring and System Integration

The IQ8MC uses power line communication to exchange data with compatible Enphase equipment. An IQ Gateway supports system communication, commissioning, and monitoring through the Enphase platform.

The datasheet requires an IQ Gateway to change the default grid profile during installation when needed to meet local requirements.

IQ8 microinverters must not be mixed with previous-generation IQ7 or IQ6 microinverters in the same system under the supplied datasheet’s guidance.

Product Specifications

Specification	Details
Manufacturer	Enphase Energy
Listed Part Number	IQ8MC-72-M-US-NFC
Datasheet Model	IQ8MC-72-M-US
Product Type	Solar microinverter
Common Module Pairing Range	260–460W, subject to module electrical compatibility
MPPT Voltage Range	25–45V
DC Operating Range	18–58V
Minimum / Maximum Start Voltage	22V / 58V
Maximum DC Input Voltage	60V
Maximum Continuous Operating DC Current	14A
Maximum Input DC Short-Circuit Current	25A
Maximum Permitted Module Isc	20A
Peak AC Output at 240V	330VA
Peak AC Output at 208V	315VA
Maximum Continuous AC Output at 240V	320VA
Maximum Continuous AC Output at 208V	310VA
Nominal Grid Connection	240V split-phase, line-to-line / 208V single-phase, line-to-line
Maximum Continuous Output Current	1.33A at 240V / 1.49A at 208V
Nominal Frequency	60Hz
Peak Efficiency	97.4% at 240V / 97.2% at 208V
CEC Weighted Efficiency	97.0% at 240V / 96.5% at 208V
Maximum Units per 20A Branch Circuit	12 at 240V / 10 at 208V, subject to local requirements
Total Harmonic Distortion	Less than 5%
DC Connector Type	Stäubli MC4
Communication	Power line communication with compatible Enphase equipment
Dimensions (H × W × D)	212 × 175 × 30.2mm / 8.3 × 6.9 × 1.2 in
Weight	1.1kg / 2.43 lb
Cooling	Natural convection, no fans
Enclosure	Class II double-insulated, corrosion-resistant polymeric enclosure
Environmental Rating	NEMA Type 6, outdoor; approved for wet locations
Ambient Operating Temperature	-40°C to 65°C / -40°F to 149°F
Relative Humidity	4% to 100%, condensing
Grid Support Standards Listed	CA Rule 21, UL 1741-SA, IEEE 1547:2018, UL 1741-SB
Additional Compliance Listed	UL 62109-1, FCC Part 15 Class B, ICES-0003 Class B, CAN/CSA-C22.2 No. 107.1-01
Rapid Shutdown	UL Listed as PV rapid shutdown equipment when installed according to manufacturer instructions
Manufacturer Warranty	Up to 25-year limited warranty, subject to applicable terms

Solar Panel Compatibility

The commonly used 260–460W module pairing range is a starting point, not a substitute for an electrical compatibility check. Panel voltage, current, temperature characteristics, and connector type must meet Enphase requirements.

The 25A maximum input short-circuit current rating and 20A maximum module Isc rating are separate specifications. Use the manufacturer’s module compatibility guidance when selecting a panel.

Check your proposed pairing with the Enphase Module Compatibility Calculator.

This listing is for the microinverter. Solar panels, IQ Cable, IQ Gateway, system controllers, batteries, and other installation components are sold separately unless expressly included in your order.

Frequently Asked Questions

What is the continuous output of the IQ8MC?

Maximum continuous output is 320VA at 240V or 310VA at 208V. Peak output is 330VA at 240V or 315VA at 208V.

Can I pair this microinverter with a 440W or 450W panel?

Potentially. Both fall within the commonly used module pairing range, but the exact panel must also meet the inverter’s voltage, current, and connector requirements. Check the specific model with Enphase’s compatibility guidance.

Why is the solar panel wattage higher than the microinverter output?

Solar panels are rated under standard test conditions and do not produce their nameplate output continuously. Pairing a higher-rated panel with a lower AC-output microinverter can help support production across varying sunlight conditions. When available panel power exceeds the inverter’s conversion capacity, AC output is limited.

Will this microinverter provide power during an outage?

Only as part of a properly configured Enphase backup system with compatible control, isolation, and supporting equipment. The microinverter alone will not provide usable home backup power when the utility grid is unavailable.

Does this connect to a standard 120V household outlet?

No. The IQ8MC is designed for approved 240V or 208V line-to-line solar installations using the required Enphase cabling and electrical equipment.

Are MC4 connectors included?

The microinverter has integrated Stäubli MC4 DC connectors. Confirm that the connected panel uses an approved mating connector.

Do I need an IQ Gateway?

An IQ Gateway supports Enphase system communication, commissioning, and monitoring. The datasheet requires it to change the default grid profile when needed to meet local installation requirements.

Can I mix IQ8MC units with IQ7 or IQ6 microinverters?

The supplied datasheet states that IQ8 microinverters cannot be mixed with previous-generation IQ7 or IQ6 microinverters in the same system.

How many units can be installed on a 20A branch circuit?

The datasheet lists up to 12 units at 240V or 10 units at 208V. Final branch-circuit design must comply with local requirements and manufacturer instructions.

What does the financing eligibility note mean?

This inventory predates the supplier’s stated manufacturing cutoff and may not be accepted on every financing provider’s Approved Vendor List. If your project uses financing with an equipment approval requirement, confirm acceptance of the supplied units before ordering.

Can the IQ8MC be installed outdoors?

Yes. It has a NEMA Type 6 outdoor enclosure and is approved for wet locations when installed according to Enphase instructions.

What warranty comes with the microinverter?

Enphase advertises a limited warranty of up to 25 years. Coverage is subject to the applicable manufacturer warranty terms and requirements.

About Enphase Energy

Enphase develops solar microinverters, battery storage, and energy management technology. Its IQ platform connects compatible solar, storage, control, and monitoring equipment within the Enphase Energy System.

Why Buy From US Solar Supplier?

Founded in Kentucky, US Solar Supplier helps homeowners and installers source solar panels, batteries, inverters, and mounting equipment. Our team can help you compare components, select compatible equipment, and explore PowerPlan solar design services for your project.