EG4 EG412KPV8LV 8kW Hybrid Inverter/Charger

EG4 12kPV (EG412KPV8LV) — 8kW Split-Phase All-in-One Hybrid Inverter | 12kW Solar Input | NEMA 4X

The EG4 12kPV is a high-efficiency, all-in-one hybrid inverter/charger designed for homeowners and off-grid builders who want maximum solar input capacity in a single compact unit. With 12,000W of PV input across dual MPPT channels, 8,000W of continuous split-phase AC output, a NEMA 4X outdoor-rated enclosure, built-in rapid shutdown, AC coupling capability, a generator/smart load port, and a 10-year warranty — the EG412KPV8LV delivers a feature set that punches well above its price class. Whether you're building a new solar-plus-storage system, retrofitting battery backup onto an existing installation, or going fully off-grid, the 12kPV gives you the tools to do it in one pre-wired enclosure.

8,000W Continuous Output with Strong Surge Capacity — Power Your Whole Home

The EG4 12kPV delivers 8,000W of continuous AC output at 120/240V split-phase, covering the full electrical demand of a typical American home. When heavy motor-start loads demand a burst of extra power, the inverter handles up to 16,000W for 50 milliseconds, 12,000W for 1 second, and 10,000W for up to one minute — ensuring HVAC systems, well pumps, and other inductive loads start reliably without tripping the system or shedding other circuits.

12kW of Solar Input — Dual MPPT at 500VDC, Accepts Up to 15kW Array

Two independent MPPT charge controllers each rated at 25A accept a combined 12,000W of PV input across a voltage range of 120–500VDC — with support for arrays sized up to 15,000W to account for real-world production variability. Dual independent channels let you wire separate roof orientations, array sections, or string configurations without cross-shading losses or forced string matching, maximizing harvest from every panel in the system. At 99.9% PV-to-battery efficiency and 97.5% PV-to-grid efficiency, the 12kPV converts more of what your panels produce into usable power than most inverters in its class.

4,000W Phase Imbalance Management — Reliable Split-Phase Performance

The EG4 12kPV can manage up to 4,000W of load imbalance between the two phases for up to 30 minutes — a meaningful real-world capability for homes where 120V loads are not perfectly balanced across both legs. This tolerance for phase imbalance prevents nuisance shutdowns during normal household usage patterns and ensures reliable, uninterrupted operation even when loads shift dynamically between phases.

10ms Transfer Time — Near-Seamless Backup Switching

When grid power fails, the 12kPV switches to battery and solar backup in just 10 milliseconds — fast enough to keep most sensitive electronics, smart home devices, and network equipment running without interruption. For homes where continuous power is critical, this near-seamless transfer eliminates the frustrating brief outage that slower inverters impose during grid-to-battery transitions.

NEMA 4X Enclosure — Outdoor, Coastal, and All-Weather Rated

Like the FlexBOSS18, the EG4 12kPV carries a NEMA 4X enclosure rating — providing full protection against windblown dust, rain, hose-directed water, and corrosive coastal salt spray. This makes it one of the few residential hybrid inverters in its output class genuinely suitable for direct outdoor installation in humid, rainy, and coastal environments without additional weatherproofing hardware. Whether mounted on a garage wall in the Pacific Northwest or an exterior equipment pad in coastal Florida, the 12kPV is rated for the conditions.

Generator and Smart Load Port — Flexible Backup and Load Management

A dedicated generator and smart load port provides dual functionality in a single connection point. In generator mode, it accepts generator AC input for battery charging and load supply without a separate transfer switch. In smart load mode, it enables programmable control of non-critical loads based on battery state-of-charge or time-of-day schedules — automatically shedding or enabling loads to optimize battery runtime and solar self-consumption. This built-in smart load capability replaces the need for an external load controller or additional relay hardware.

AC Coupling — Retrofit-Ready for Existing Solar Installations

The 12kPV supports AC coupling, allowing it to integrate with an existing grid-tied microinverter or string inverter system. Homes that already have solar production equipment installed can add the 12kPV alongside it — gaining battery storage, backup capability, and energy management without scrapping working equipment. AC coupling expands total system solar capacity beyond the inverter's own MPPT inputs, supporting larger arrays in retrofit scenarios.

Built-In Rapid Shutdown — NEC 690.12 Compliant

Integrated Rapid Shutdown (RSD) compliance meets NEC 690.12 requirements for roof-mounted PV arrays without additional hardware, simplifying permit packages and reducing the component count for code-compliant residential installations.

Closed-Loop Battery Communication — EG4 and Third-Party Compatible

The 12kPV supports closed-loop BMS communication with EG4's 48V LiFePO4 battery line and a wide range of third-party battery brands via CAN and RS485 protocols. Direct BMS communication delivers precise, chemistry-aware charging that maximizes battery performance, extends cycle life, and provides real-time state-of-charge accuracy that voltage-based open-loop charging simply cannot match. Open-loop mode supports any 48V battery including lead-acid and AGM for maximum flexibility.

Built-In Arc Fault Detection, Surge Protection, and PV Disconnect

The 12kPV includes integrated arc fault circuit interrupter (AFCI) protection, DC surge protection, and a built-in PV disconnect — satisfying multiple NEC safety requirements within the inverter enclosure and eliminating the need for separate external protection devices. This integrated safety stack simplifies the installation, reduces hardware costs, and keeps the final system cleaner and easier to inspect.

Wi-Fi Monitoring and EG4 App

Wi-Fi connectivity provides real-time remote monitoring and system management through the EG4 app, accessible from any smartphone or browser. Track solar production, battery state-of-charge, load consumption, grid import/export, and system fault codes from anywhere. Export limiting and self-consumption programming are accessible and adjustable remotely without a site visit.

UL 1741 and UL 9540 Certified

The EG4 12kPV carries UL 1741 certification for the inverter and UL 9540 certification for the complete energy storage system when paired with compatible EG4 WallMount batteries — satisfying dual listing requirements for solar inverter and battery storage system installations across U.S. permit jurisdictions.

Scalable to 80kW — Up to 10 Units in Parallel

For larger homes or light commercial properties requiring output beyond 8kW, up to 10 EG4 12kPV units can be connected in parallel for a combined continuous output of 80kW — without replacing existing equipment or redesigning the system.

10-Year Warranty

The EG4 12kPV is backed by a 10-year full parts and product replacement warranty, registered within the first year of purchase from an authorized EG4 distributor.