Enphase IQ9N Three-Phase Microinverter, 277V AC, NEC 2023 Compliant IQ9N-3P-277

Enphase IQ9N Three-Phase Microinverter, 277V AC, NEC 2023 Compliant IQ9N-3P-277

Regular price $164.79
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Enphase IQ9N Three-Phase Microinverter, 277V AC, NEC 2023 Compliant IQ9N-3P-277

Enphase IQ9N Three-Phase Microinverter, 277V AC, NEC 2023 Compliant IQ9N-3P-277

Available
MPN No: IQ9N-3P-277
Regular price $164.79

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Data Sheet

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Regular price $164.79

Enphase IQ9N Microinverter (277 V)  IQ9N-3P-277

The IQ9N-3P-277 is a high-powered, commercial-grade microinverter engineered for 480 VAC three-phase PV systems. Designed to pair with today’s high-wattage modules, it delivers industry-leading efficiency, advanced grid support, and robust reliability for large rooftop and ground-mount projects.


Key Technology

  • 427 VA High Output
    Optimized for modern 340–600 W PV modules, maximizing per-module energy harvest.

  • Three-Phase Commercial Architecture
    Single-phase microinverter output balanced across phases using Enphase three-phase QD cabling for 480V WYE systems.

  • Advanced Grid Support
    Meets CA Rule 21 and IEEE 1547 requirements (UL 1741-SB pending), with configurable grid profiles and remote updates.

  • High Efficiency & Reliability
    97.5% CEC weighted efficiency, Class II double-insulated enclosure, and natural convection cooling (no fans).


Best Uses

  • Commercial & Industrial PV Systems
    Ideal for 480 VAC three-phase rooftops and ground-mount arrays.

  • High-Power Module Pairing
    Designed for today’s larger, high-current solar modules.

  • Code-Compliant Rapid Shutdown
    UL-listed as PV rapid shutdown equipment when installed per manufacturer instructions.


Installation & Monitoring

  • Plug-and-play MC4 DC connectors and Enphase QD AC connector.

  • Power Line Communication (PLC) for fast commissioning.

  • Compatible with IQ Gateway Commercial Pro and Enphase App for monitoring and analytics.


Warranty

  • Manufacturer Warranty: Up to 25 years (industry-leading)


Product Specifications

Specification Details
Manufacturer Enphase Energy
Model IQ9N-3P-277
Peak Output Power 427 VA
CEC Weighted Efficiency 97.5%
Nominal Grid Voltage 277 V (L-N), 3-phase
DC Operating Voltage 16–60 V
MPPT Voltage Range 28–45 V
Max DC Short-Circuit Current 25 A
Cooling Natural convection (fanless)
Dimensions (H × W × D) 8.12 × 7.32 × 1.23 in
Weight 2.65 lb 
Certifications UL 1741, IEEE 1547, NEC 690.12 (per datasheet)

 

About Enphase: 

Enphase is a U.S. energy tech company that makes solar microinverters, battery storage, and energy management systems for homes. It pioneered module‑level microinverters that convert DC to AC, enabling smarter, efficient solar + storage solutions monitored via its app.


Commercial-Grade Power, Module by Module

The Enphase IQ9N-3P-277 delivers high efficiency, advanced grid compliance, and long-term reliability for demanding three-phase commercial solar projects—making it a powerful foundation for scalable, code-ready PV systems.

 

Why Buy From US Solar Supplier

US Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.

Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.


Need Assistance?

Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.

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