FOXESS EPS BOX-PRO-HC: The high-current emergency power solution for maximum three-phase performance
The FOXESS EPS BOX-PRO-HC is the ultimate switchover box for demanding residential and commercial photovoltaic installations that require uncompromising protection during power outages. Thanks to its sophisticated control architecture, it switches fully automatically between regular grid operation (on-grid) and autonomous emergency power operation (off-grid) in an emergency. With a massive current-carrying capacity of a full 63 A on all key paths, this high-current variant is perfectly tailored to modern, high-performance hybrid inverters and ensures seamless protection of critical loads.
Highlights of the FOXESS EPS BOX-PRO-HC system controller
- Fully automatic switchover: Intelligently and precisely switches between on-grid and off-grid states in the event of a power failure, without manual intervention.
- High-current design (63 A): Unlike standard models, supports up to 63 A maximum input current per phase across all inverter interfaces (grid & EPS).
- Comprehensive compatibility: Perfectly matched to high-performance three-phase FOXESS inverter systems: AIO-H3, H3, H3 Smart, P3-S, H3 Pro, and P3 Pro.
- Integrated RS-485 interface: Equipped with a dedicated communication port for seamless connection of a smart meter for precise energy monitoring.
- Reliable load management: Enables the safe supply of even larger consumer groups in backup mode thanks to its continuous 63 A certification.
Highlights of hardware robustness & installation
- Robust metal housing: The high-quality, resilient metal and polycarbonate housing reliably protects the sensitive switching technology.
- IP65 protection class: Offers excellent protection against dust and water jets, ideal for safe installation in harsh environments.
- Efficient passive cooling: The fanless cooling concept is based on natural convection, operates absolutely silently, and minimizes maintenance requirements.
- Ergonomic wall mounting: The well-thought-out design allows for quick, uncomplicated, and time-saving installation directly on the wall.
- Extended temperature range: Absolutely reliable operation at ambient temperatures from -25 °C to +60 °C (derating from 45 °C).
Technical specifications: FOXESS EPS BOX-PRO-HC
| Feature | Details |
|---|---|
| Model | EPS BOX PRO-HC |
| Nominal voltage (all grids) | 220/380, 230/400, 3L/N/PE |
| Nominal frequency | 50 / 60 Hz |
| Max. supply system input current (per phase) | 63 A |
| Max. inverter grid input current (per phase) | 63 A |
| Max. inverter EPS input current (per phase) | 63 A |
| Max. load output current (per phase) | 63 A |
| Communication interface | RS-485 (meter) |
| Cooling concept / Installation | Natural (passive) / Wall mounting |
| Operating temperature range | -25 °C to +60 °C (derating from 45 °C) |
| Device dimensions (W × H × D) | 550 × 420 × 138.5 mm |
| Packaging dimensions (W × H × D) | 660 × 515 × 235 mm |
| Weight | 17 kg net / 18 kg gross |
| Housing protection rating | IP65 |
Advantage for professionals: The FOXESS EPS BOX-PRO-HC sets new standards in the installation of commercial and large private backup systems. Thanks to the consistent high-current design of a full 63 A on all channels – especially on the EPS and inverter grid side – bottlenecks in the emergency power supply are a thing of the past. Installers benefit from a drastically reduced installation time, as time-consuming external contactor circuits in the distribution box are completely eliminated. Thanks to native compatibility with high-power inverters like the H3 Pro series and the robust IP65 metal housing, specialist companies can implement a durable, future-proof premium system that reduces service calls to a minimum.
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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.


