DF Electric, a specialist in circuit protection solutions, has expanded its HORUS® Photovoltaic range, a comprehensive line of fuses, fuse links, and holders designed to protect high-power solar installations and battery energy storage systems (BESS). As photovoltaic systems evolve toward higher voltages and larger capacities, ensuring protection against DC faults has become critical. DF Electric’s HORUS® Photovoltaic series addresses this challenge with purpose-built components that combine safety, performance, and design flexibility.

Engineered for Modern Solar and Energy Storage Systems

The HORUS® Photovoltaic line includes a full suite of products designed specifically for 1000 VDC and 1500 VDC systems, the most common voltages used in large-scale PV arrays and hybrid renewable setups.

Key components include:

• Cylindrical fuse links (gPV series): Available in multiple sizes (10×38 mm, 14×51 mm, 10/14×85 mm, and 22×65 mm) for protecting PV strings and combiner boxes.

• NH-type fuse links (NH XL series): High-current fuses rated for 1500 VDC, ideal for central inverters and high-power connections.

• Fuse holders and bases: The PMX PV and NH ST/XL series ensure safe installation and easy maintenance in both rooftop and ground-mounted systems.

Each component is built to meet the IEC 60269-6 standard for photovoltaic protection, ensuring optimal performance under DC fault conditions.

Highlights of HORUS® Photovoltaic Range

DF Electric’s HORUS® range integrates several advanced design features that make it suitable for demanding solar environments:

• High Voltage Operation: Designed for up to 1500 VDC, enabling use in next-generation solar and storage systems.
• Optimized Arc Suppression: Specifically engineered to interrupt DC arcs quickly, minimizing fault propagation.
• Compact & Modular Design: Available in multiple fuse sizes and configurations, allowing easy adaptation across string, combiner, and inverter levels.
• Thermal Endurance: Built with materials that withstand high operating temperatures, UV exposure, and outdoor environmental conditions.
• Enhanced Safety & Serviceability: Fuse holders ensure secure handling, easy replacement, and reliable contact pressure.

As global solar deployment accelerates and systems scale in size and voltage, operators face rising safety and reliability challenges. DF Electric’s HORUS® technology directly responds to these needs by providing:

• Reliable fault protection for large PV arrays and battery modules.
• Reduced downtime through easy fuse access and replacement.
• Improved energy efficiency by minimizing power losses in protective circuits.
• Scalable system integration across both photovoltaic and hybrid renewable setups.

By combining fuses, holders, and bases into one cohesive ecosystem, DF Electric enables system designers and OEMs to simplify layouts, reduce component diversity, and enhance long-term system dependability.

Applications Across Renewable Infrastructure

The HORUS® Photovoltaic line is designed for a wide range of renewable applications, including:

• Utility-scale solar farms and BESS installations
• Commercial and industrial rooftop systems
• Hybrid solar-plus-storage microgrids
• DC distribution and inverter protection systems

These products help ensure safety at every level of a solar installation, from the PV string to the central inverter, supporting both energy generation and storage efficiency.

With the HORUS® Photovoltaic portfolio, DF Electric reinforces its position as a trusted partner for renewable energy protection technology. The company’s solutions provide the necessary foundation for safe, scalable, and future-ready solar installations. As renewable power continues to expand, DF Electric’s innovations ensure that protection systems evolve in tandem, safeguarding not just equipment but also the continuity and reliability of clean energy generation.

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