Enphase IQ8HC-72-M-DOM-US Microinverter

Enphase IQ8HC-72-M-DOM-US Grid-Forming Microinverter for High-Power Solar Modules

Product Overview

The Enphase IQ8HC-72-M-DOM-US (often referred to as IQ8HC-DOM) is Enphase’s high-capacity model in the revolutionary IQ8 Series — the industry’s first grid-forming microinverters capable of operating in both grid-tied and off-grid (Sunlight Backup™) modes. Designed specifically for high-power residential and commercial solar panels (up to 540+ W), it maximizes energy harvest from modern high-efficiency modules while delivering exceptional reliability, rapid shutdown compliance, and seamless integration with the full Enphase Energy System.

This DOM-US variant features domestically manufactured PCB and enclosure (Made in the USA), qualifying many installations for the Domestic Content Bonus Credit under the Inflation Reduction Act — a key advantage for California homeowners seeking maximum federal incentives.

Key Specifications

• Peak Output Power — 384 VA @ 240 Vac | 366 VA @ 208 Vac
• Maximum Continuous Output Power — 380 VA @ 240 Vac | 360 VA @ 208 Vac
• Recommended PV Module Input Power — 320–540+ W (optimized for high-current modules)
• Input Operating Voltage Range — 18–58 V
• MPPT Voltage Range — 29.5–45 V
• Maximum Continuous Input DC Current — 14 A (higher than standard IQ8 models for better compatibility with high-power panels)
• Compatible Module Cell Configurations — 54/108, 60/120, 72/144 half-cell modules
• AC Output — 240 V split-phase or 208 V single-phase
• Efficiency — Up to 97.5% CEC weighted efficiency
• Connectors — Integrated MC4 bulkhead connectors (plug-and-play)
• Dimensions — ≈212 mm × 175 mm × 30.2 mm
• Weight — ≈2.4 lbs (1.1 kg) — lightweight and compact
• Cooling — Natural convection (no fans)
• Enclosure Rating — NEMA 6 (outdoor rated)
• Warranty — Industry-leading up to 25 years limited warranty
• Certifications — UL 1741 SA/SB, IEEE 1547, rapid shutdown compliant (NEC 690.12)

Standout Features & Benefits

✓ Grid-Forming Technology (Sunlight Backup™ ready) Forms a microgrid during outages — powers essential loads with solar (and Enphase IQ Battery) even when the grid is down. No generator needed for daytime backup.

✓ High-Current Optimization (14 A continuous input) Handles the latest high-wattage panels (e.g., 400–540 W+) with higher Imp — extracts more energy than lower-current IQ8 models like IQ8H or IQ8AC.

✓ Maximum Energy Harvest Individual MPPT per module + advanced ASIC chip for super-fast response to shading, soiling, or cloud transients — outperforms string inverters in real-world conditions.

✓ Seamless Enphase Ecosystem Integration Pairs perfectly with IQ Batteries, IQ Gateway, IQ Combiner, and the Enphase App for real-time monitoring, smart energy management, and future-proof software updates (e.g., enhanced VPP participation).

✓ Plug-and-Play Installation Uses simple two-wire IQ Cable system — faster, safer, and more reliable than traditional string inverters. Built-in PLC communication.

✓ Domestic Content Advantage DOM-US version supports bonus tax credits — especially valuable in areas where high electricity rates and strong solar incentives amplify ROI.

✓ Rock-Solid Reliability Over 1 million cumulative hours of testing, fanless design, and proven Enphase track record — minimal maintenance and long lifespan.

Best For

• Homeowners installing high-power solar modules (e.g., 400–550 W panels from Q CELLS, REC, Canadian Solar, etc.)
• Systems designed for Sunlight Backup™ or full Enphase battery integration
• Projects qualifying for Domestic Content Bonus to stack with the 30% federal ITC
• Shaded or complex roofs where module-level optimization shines
• California residents maximizing local utility rebates + federal incentives

The Enphase IQ8HC-72-M-DOM-US sets the standard for high-performance residential solar in 2026 — delivering more power from bigger panels, blackout resilience, and top-tier efficiency in a compact, future-proof package.