Fox ESS H3 Plus Three-Phase Hybrid Inverter: The high-efficiency energy hub for commercial PV systems and storage projects
The Fox ESS H3 Plus series, with its powerful output classes from 50 kW to 125 kW, sets new standards for demanding commercial photovoltaic and storage systems. This forward-looking hybrid inverter combines maximum efficiency in PV and battery operation with industrial reliability to sustainably maximize the self-consumption rate and noticeably reduce operating costs. Thanks to the integrated, sophisticated EPS emergency power function and seamless integration into the FoxCloud monitoring system, this is the perfect all-in-one solution for modern commercial enterprises striving for independence and absolute reliability.
Highlights of the Fox ESS H3 Plus Hybrid Inverter
- Scalable PV Power: Supports a maximum PV array output of up to 250 kWp in the largest version for maximum energy yields.
- High-Efficiency MPPT Tracking: Depending on the model, 4 or 8 independent MPPT trackers with 2 strings each guarantee optimal yields even in complex shading scenarios.
- Superior Efficiency: Achieves a maximum efficiency of 98.5% (Euro efficiency 98.1%) for minimal conversion losses.
- Industrial Design: Robust IP65-certified housing with intelligent air cooling, ideally designed for demanding operating environments from -30 °C to +60 °C.
- Smart System Control: Modern color display with LCD technology directly on the device, as well as advanced real-time monitoring via FoxCloud V2.0.
Highlights of the battery and system components
- Ultrafast EPS Emergency Power: Offers a true backup power function with an extremely fast switching time of under 10 ms for seamless reliability.
- Asymmetric Three-Phase Output: Supports a 100% unbalanced three-phase output for the perfect regulation of unbalanced loads in the building.
- Powerful Battery Charging: Up to 3 dedicated battery inputs for long-lasting LiFePO4 (LFP) storage with an impressive charge/discharge current of up to 240 A.
- Long Backup Time: Reliable provision of more than 3 hours of continuous emergency power supply in the event of a power failure.
- All-In Maximum Protection: Fully equipped with an integrated AFCI arc fault protection, DC isolator switch, Class II AC/DC surge arresters, and string current monitoring.
Technical Specifications: Variant comparison (H3-50-Plus to H3-125-Plus)
| Feature | H3-50-Plus | H3-60-Plus | H3-80-Plus | H3-100-Plus | H3-125-Plus |
|---|---|---|---|---|---|
| AC Rated Power | 50 kW | 60 kW | 80 kW | 100 kW | 125 kW |
| Max. PV Array Power | 100 kWp | 120 kWp | 160 kWp | 250 kWp | |
| Max. Apparent Power (AC) | 55 kVA | 66 kVA | 88 kVA | 110 kVA | 137.5 kVA |
| Number of MPPT Trackers | 4 MPPT | 4 MPPT | 8 MPPT | 8 MPPT | 8 MPPT |
| Max. Output Current | 83.6 A | 100.3 A | 133.7 A | 167.2 A | 198.5 A |
| Device Weight | 115 kg | 115 kg | 120 kg | 120 kg | 120 kg |
| Primary Application | Compact commercial | Classic SME systems | Complex roofs & shading | Large-scale commercial & industry | Flagship for max yields |
General Technical Data (Common H3 Plus Platform)
| Feature | Details and System Values |
|---|---|
| PV Voltage Range | Max. 1000 V | Input voltage range: 180 V - 950 V | MPPT range: 180 V - 850 V |
| MPPT Input Current | Max. 40 A per MPPT | Max. short-circuit current: 50 A | 2 strings per MPPT |
| Battery Specification | LFP (LiFePO4) battery type | Voltage range: 180 V - 950 V | 3 battery inputs (CAN*3) |
| Grid Voltage / AC Frequency | 380V / 400V (3W+N+PE or 3W+PE) | 50 / 60 Hz |
| Total Harmonic Distortion (THDi / THDv) | < 3% at rated power (in both grid and EPS backup mode) |
| Dimensions (W × H × D) | 730 × 1060 × 305 mm |
| Communication Interfaces | USB, RS485, Bluetooth, Wi-Fi + LAN, CAN, 4G (Optional) |
Professional Advantage: The Fox ESS H3 Plus series offers solar installers, project planners, and commercial users an unbeatably robust and highly integrated platform for large-scale commercial PV projects. Thanks to the extreme flexibility of up to 8 MPPTs and an enormously wide battery voltage range, even complex rooftop installations can be implemented with zero loss. The integrated system design saves valuable on-site installation time, while advanced protection functions such as AFCI arc detection and Class II surge arresters minimize the risk of costly system downtime and guarantee maximum operational safety over the entire service life.
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Frequently Asked Questions
What are the advantages of using a photovoltaic system from Terra Energy?
What are the advantages of using a photovoltaic system from Terra Energy?
With a PV solution, companies can reduce their energy costs, cut CO₂ emissions, and strengthen their corporate sustainability. Our partner solutions ensure performance, efficiency, and future-proofing in B2B applications.
What happens after I purchase a system? Is there support or maintenance?
What happens after I purchase a system? Is there support or maintenance?
Our service doesn't end with your purchase. We support you from delivery and commissioning to the long-term optimization of your system. Our technical support team is available to answer questions and can arrange specialized installation or maintenance partners if needed.
What shipping and delivery options do you offer?
What shipping and delivery options do you offer?
Within Germany, we generally offer free shipping for photovoltaic systems. For international deliveries or bulky components such as modules or mounting systems, we will individually prepare a shipping solution for you (e.g., pallet delivery, truck freight).
What payment methods are available to business customers?
What payment methods are available to business customers?
We offer various payment options for business customers, including prepayment and purchase on account. Simply contact our sales department.
How does Terra Energy support me in selecting and planning my PV solution?
How does Terra Energy support me in selecting and planning my PV solution?
We offer expert advice and customized planning, taking into account location, consumption, subsidies, and technology. Together, we will develop your optimal solution, from the initial concept to commissioning.
What brands and technologies do you carry?
What brands and technologies do you carry?
We work with leading manufacturers and brands in the photovoltaic and energy storage segments to offer you state-of-the-art technology with high quality and performance. Please feel free to ask us for specific manufacturer and product details for your project.
