FOXESS HV-junction box-50: The intelligent high-voltage connection box for maximum scalability in the home storage sector
The FOXESS HV-junction box-50 is the professional switching and distribution center for demanding solar system operators looking to take their high-voltage storage capacity to the next level. As an intelligent grid and system coupler, this box bundles multiple battery units with absolute process reliability and handles high continuous DC currents without power loss. Thanks to its robust design and IP65 certification, the system guarantees long-lasting, highly efficient energy distribution in both indoor and exposed outdoor areas.
Highlights of the FOXESS HV-junction box-50 distribution center
- Enormous parallel connection: Supports the intelligent merging of 4 separate battery inputs into a common load output for the implementation of large-scale storage setups.
- High load capacity: Designed for a permanent, maximum continuous current of up to 50 A and short-term peak currents of an impressive 65 A for up to 60 seconds.
- Future-proof high-voltage design: Offers a stable and safe nominal voltage of up to 500 V DC, perfectly matched to modern lithium-ion high-voltage storage systems.
- Maintenance-free passive cooling: Operates completely silently and highly efficiently due to natural convection, without wear-prone mechanical fan components.
- Strictest environmental standards: The system fully complies with the demanding ROHS and REACH criteria for an environmentally friendly, pollutant-free, and safe electronic architecture.
Highlights regarding housing protection & installation flexibility
- IP65 weather protection: Ensures absolute protection against the ingress of dust as well as strong water jets, ideal for installation in harsh environments.
- Wide temperature range: Operates completely fault-free within a thermal window from a freezing -20 °C up to a hot +70 °C housing temperature.
- Optimized slim design: Impresses with an extremely compact housing size (223 × 246 × 89 mm) and a vanishingly low net weight of just 2.6 kg.
- Secure wall mounting: The housing structure allows for quick, process-reliable, and ergonomic wall mounting at almost any installation site.
- High-altitude suitability: Guarantees unrestricted, safe operation in topographically demanding regions up to an altitude of ≤ 2,000 meters above sea level.
Technical specifications: FOXESS HV-junction box-50
| Feature | Details |
|---|---|
| Nominal voltage [V] | 500 |
| Max. continuous current [A] | 50 |
| Peak current [A] | 65 @ 60 seconds |
| System parallel description | Supports 4 battery inputs and 1 load output |
| Dimensions (W × H × D) [mm] | 223 × 246 × 89 |
| Net weight [kg] | 2.6 |
| Cooling / Installation type | Natural cooling / Wall mounting |
| Installation site / Protection class | Indoor & Outdoor areas / IP65 |
| Permissible operating temperature [°C] | -20 ~ 70 |
| Optimal operating temperature [°C] | 15 ~ 30 |
| Storage temperature [°C] | -20 ~ 55 |
| Permissible humidity [%] | 5 ~ 95 (non-condensing) |
| Maximum altitude [m] | ≤ 2,000 |
| Environmental requirements | ROHS, REACH |
Advantage for professionals: The FOXESS HV-junction box-50 offers solar installers and specialist companies an unbeatable, standardized solution for the clean cascading of modern high-voltage battery systems. Instead of time-consuming and error-prone field wiring or the use of expensive, bulky DC distributors in the control cabinet, this box allows you to implement an extremely compact plug-and-play connection for up to 4 battery clusters. The vanishingly low weight of only 2.6 kg significantly facilitates handling on the construction site, while the IP65 wall mounting grants maximum flexibility in spatial planning. Thanks to compliance with ROHS and REACH as well as passive cooling, you reduce service calls to an absolute minimum and offer your customers a long-lasting, maintenance-free, top-class system.
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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.
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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).
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What payment methods are available to business customers?
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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.
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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.
