Product details
About This Product
The Enphase IQ8P-3P 480W Three-Phase Microinverter is a module-level solar microinverter designed for connection to 208V three-phase electrical systems. Part of the Enphase IQ8 Series, this model provides up to 480 VA peak AC output and converts solar panel DC power into grid-compatible AC power directly at each module.
The IQ8P-3P-72-E-DOM-US features an EN4 bulkhead connection and factory-supplied MC4 connectors for compatible solar module connections. Its distributed architecture allows individual solar panels to operate independently, reducing the impact of module-level shading or performance differences on the rest of the array.
This domestic-content variant incorporates domestically manufactured printed circuit board assemblies, electrical components, and enclosure components. It is intended for projects evaluating domestic-content requirements under applicable US federal tax provisions. Eligibility for any tax incentive depends on the applicable IRS rules, project configuration, and documentation.
Product Explainer Video
Introducing IQ8P-3P Series Microinverters for 208V Commercial Systems
Who This Product Suits
The Enphase IQ8P-3P is suited to commercial and other three-phase solar installations using compatible 208V electrical infrastructure. It is particularly useful where module-level power conversion, system monitoring, and flexible array layouts are important.
- Commercial solar installations connected to 208V three-phase services.
- Projects requiring individual module-level power conversion and monitoring.
- Rooftops with multiple orientations or varying shading conditions.
- Installers designing distributed microinverter systems instead of centralized string inverter arrangements.
- US projects evaluating equipment with documented domestic-content components.
Installers should confirm solar module electrical compatibility, Enphase system component requirements, and applicable NEC provisions before installation.
Specifications Explained
- Manufacturer Model: IQ8P-3P-72-E-DOM-US, identifying the domestic-content version of the Enphase IQ8P three-phase microinverter.
- Peak AC Output: 480 VA, representing the maximum apparent AC power output rating.
- Grid Connection: 208V three-phase, designed for compatible commercial three-phase electrical distribution systems.
- Power Conversion: Module-level DC-to-AC conversion, allowing each connected solar panel to operate independently.
- DC Connectors: Factory-supplied MC4 connectors for compatible solar module connections.
- AC Connection: EN4 bulkhead interface for the specified Enphase connection arrangement.
- Domestic Content: Domestically manufactured PCBA, electrical parts, and enclosure components, subject to applicable project qualification requirements.
- Manufacturer Warranty: 25 years, subject to Enphase warranty terms and conditions.
- Installation Requirements: System design must follow Enphase installation instructions, approved equipment combinations, and applicable NEC and local electrical code requirements.
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Summary
The Enphase IQ8P-3P 480W Three-Phase Microinverter provides module-level solar power conversion for 208V three-phase installations. With 480 VA peak output, MC4 connectors, an EN4 bulkhead interface, and a 25-year manufacturer warranty, it is designed for commercial solar projects requiring distributed inverter architecture.
Its domestic-content component configuration also makes it relevant to US projects assessing applicable domestic-content qualification requirements. Installers should verify module compatibility, electrical design, and project-specific compliance before specifying this model.
Further Information From The Manufacturer
This product is in the process of transitioning to the SKU: Enphase : EN-IQ8P-3P-72-E-DOM-US Enphase IQ8P-3P-DOM microinverter, 480 VA peak power, EN4 Bulkhead, 208 V three-phase interconnection. The PCBA, Electrical Parts, and Enclosure are domestically manufactured to meet the eligibility requirements for the ITC domestic content bonus adder. This item is identified via serial #’s beginning with 53XXXX or 54XXXX where XXXX < 2545, and was manufactured prior to Nov 10, 2025. Therefore, this item may NOT be applicable to all Financial AVLs starting Jan 1, 2026. 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
| UL Certificate | |
| Power Output | 480 Watts |
| Voltage | 208 Volt |
| Manufacturer Warranty | 25 Years |
| Performance Warranty | 25 |
| Shipping Weight | 4.34 lb |
| Shipping Dimensions | 10.43 x 7.8 x 1.4 in |
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.
More Explainer Videos
IQ8P-3P Commissioning in the Enphase Installer App (Commercial Systems)
IQ8P-3P Commercial Accessories
Commercial Single-Line Diagram Using IQ8P-3P 208V Microinverters
