Enphase IQ9N 427VA Domestic Content Microinverter

About This Product

The Enphase IQ9N 427VA Domestic Content Microinverter is a US-manufactured, module-level solar microinverter designed to convert DC power from an individual solar panel into grid-compatible AC power. Part of the Enphase IQ9 family, this single-phase microinverter delivers up to 427 VA peak AC output and supports 208V and 240V electrical applications.

Manufacturer model IQ9N-A-DOM-US features an MC4 DC bulkhead connection for compatible solar modules. Its printed circuit board assembly (PCBA), electrical components, and enclosure are domestically manufactured to support eligibility for the US Investment Tax Credit (ITC) domestic content bonus, subject to applicable IRS requirements and project qualification.

Who This Product Suits

The Enphase IQ9N is suitable for residential and commercial solar installations using compatible module-level microinverter architecture. It is particularly relevant for projects specifying US-manufactured equipment or evaluating eligibility for domestic content incentives.

• Residential rooftop solar systems using compatible Enphase microinverters.
• Commercial solar projects with compatible 208V or 240V AC electrical configurations.
• Installations requiring independent DC-to-AC conversion at each solar module.
• Projects evaluating domestic content requirements under applicable federal tax credit provisions.
• Installers designing NEC-compliant systems with compatible Enphase monitoring and electrical equipment.

Installers should verify solar module compatibility, AC branch circuit requirements, grid interconnection rules, and applicable Enphase installation documentation before specifying this model.

Specifications Explained

• Manufacturer Model: IQ9N-A-DOM-US, identifying the domestic-content version of the Enphase IQ9N microinverter.
• Peak AC Output: 427 VA, representing the inverter’s maximum specified apparent AC output.
• Supported AC Voltage: 208V and 240V configurations, subject to approved system design and installation requirements.
• Electrical Configuration: Single-phase microinverter for module-level DC-to-AC conversion.
• DC Connection: MC4 bulkhead connectors for connection to compatible solar modules.
• Domestic Content: US-manufactured PCBA, electrical components, and enclosure, intended to support qualifying domestic content requirements.
• System Integration: Designed for use within compatible Enphase microinverter systems, with monitoring and associated equipment selected according to Enphase requirements.
• Installation Requirements: Electrical design, branch circuit protection, grounding, and grid interconnection must follow applicable NEC provisions, local codes, utility requirements, and manufacturer instructions.

Domestic content classification does not automatically establish eligibility for a federal tax credit. Qualification depends on the complete project and applicable IRS rules.

Summary

The Enphase IQ9N delivers 427 VA peak AC output in a single-phase, module-level microinverter designed for compatible US solar installations. Its MC4 DC connection, 208V/240V application support, and domestic manufacturing attributes make it a practical option for installers specifying Enphase equipment on projects where domestic content may be important.

Confirm module compatibility, electrical configuration, required Enphase system components, and applicable incentive requirements during system design.

Further Information From The Manufacturer

Enphase IQ9N Microinverter, 427 VA peak power, MC4 DC Bulkhead, Single Phase. Made in USA. PCBA, Electrical Parts, and Enclosure are domestically manufactured to meet the eligibility requirements for the ITC domestic content bonus adder. This item includes domestic content and if used in accordance to the provisions set forth by the IRS, may qualify the taxpayer for a Domestic Content Bonus Credit. This product is supplied with MC4 connectors.

Specifications

About Enphase

Enphase is a global leader in microinverters and fully integrated solar-plus-storage ecosystems. Its U.S. product lineup includes microinverters, batteries, EV charging and advanced monitoring through the Enphase platform.

The brand is widely used in residential solar projects where module-level monitoring, flexible array design and strong installer support are priorities. Enphase systems are especially common in projects that value visibility, expandability and straightforward serviceability.