FoxESS 10kW P3-10.0-SH Hybrid HV 3 phase inverter

FoxESS P3-10.0-SH 10 kW Three-Phase Hybrid Inverter

The FoxESS P3-10.0-SH is a three-phase hybrid inverter with a rated power of 10 kW. As part of the P3-S series, it serves as the central unit for solar and energy storage systems. It manages solar power generation, battery storage, grid feeding, and off-grid (EPS) power supply all in a single device—in other words, it is not a standalone charge controller or BESS, but rather the brain of the entire system. It works with high-voltage (HV) lithium iron phosphate batteries that operate between 100 and 800 V.

FoxESS P3-10.0-SH 10 kW Three-Phase Hybrid Inverter

The FoxESS P3-10.0-SH is a three-phase hybrid inverter with a rated power of 10 kW. As part of the P3-S series, it serves as the central unit for solar and energy storage systems. It manages solar power generation, battery storage, grid feeding, and off-grid (EPS) power supply all in a single device—in other words, it is not a standalone charge controller or BESS, but rather the brain of the entire system. It works with high-voltage (HV) lithium iron phosphate batteries that operate between 100 and 800 V.

What is it used for?

Typical applications include larger residential and smaller commercial (C&I) systems with a three-phase connection, where the user wants not only to feed power into the grid but also to store it. It is well-suited for single-family homes with heat pumps and electric vehicle chargers, as well as smaller offices, workshops, or farm buildings where maximizing self-consumption is important. In the event of a power outage, it also provides backup power to critical loads via the EPS output. It is also suitable for building microgrids and self-sufficient systems where the grid is weak or unreliable.

How does it work?

The inverter has three MPPT inputs (each with three strings), allowing it to efficiently manage solar arrays with different orientations or those that are partially shaded. The energy generated is first supplied to the loads; any surplus is stored in the battery, and only then is it fed into the grid—this process is automatically controlled by the built-in energy management system. In the event of a power outage, it switches to EPS mode within a few milliseconds and supplies the connected circuits from the solar panels and the battery. It can be monitored remotely via the FoxCloud V2.0 interface, and consumption and charging strategies can be adjusted to match the daily consumption profile.

Technical and System-Level Benefits

The maximum PV input power of 20,000 Wp allows for nearly 200% DC-side oversizing, which significantly increases actual yield during winter and in the early morning and evening. The maximum 25 A charge and discharge currents, combined with the HV battery system, provide high cycle efficiency; the inverter’s European efficiency is 97.2%, and its peak efficiency is 97.9%. Communication options include Ethernet, RS485 (EMS), Meter, WiFi+LAN+Bluetooth, optional 4G, DRM, SG Ready, and CAN (BMS), making it compatible with virtually any smart home, EMS, or heat pump controller. Thanks to its IP65 rating and operating temperature range of -25 to +60 °C, it is also suitable for outdoor, wall-mounted installation.

Differences within the P3-S series

The 10 kW model represents the mid-range, “universal” power category within the series: it provides a higher DC input and charging current than the smaller 5–8 kW versions, but—unlike its 12 and 15 kW counterparts—it still operates with passive (natural) cooling, keeping its noise level below 40 dB. If the planned solar array is around or below 12 kWp, and the daily peak power consumption does not consistently exceed 10 kW, this model offers the best value for the money. For higher consumption (heat pump + EV charger + industrial loads running in parallel), it’s worth considering the 12- or 15-kW version.

Important to know

The P3-10.0-SH is compatible exclusively with HV (high-voltage) FoxESS batteries; it cannot be operated with low-voltage battery packs or those from other manufacturers. Performance derating occurs at temperatures above 45 °C; therefore, the installation site should be well-ventilated and protected from direct sunlight. On the EPS side, it can provide power up to 10 kVA, with 60-second peaks of 11 kVA—this does not replace a high-capacity off-grid system, but it reliably powers the critical circuits of a typical household.

Compatible batteries:

CQ7, EP6/EP12, and EK6/EK12

SOLARKIT Reviews

We recommend this inverter to those who are currently building or expanding a three-phase system and are looking for an integrated solution rather than a separately designed solar inverter plus a separate BESS. 10 kW is the power level that realistically suits most Hungarian single-family homes and small businesses: it’s more than enough for a heat pump and an EV charger, while still avoiding the need for an industrial-scale installation. If the goal is to increase self-consumption, reduce grid dependence, and have a system that’s easy to monitor and scalable, the P3-10.0-SH is the most well-balanced model in the series. Before installation, it’s worth carefully reviewing the planned battery capacity and the list of critical circuits on the EPS side—we’re happy to assist with sizing.