DC Disconnect Switches for Industrial Photovoltaic Systems – HDC Disconnect Switches (CTS)

Lasttrennschalter für DC-Combiner-Boxen, 1500 V, 400 A.
High-performance DC disconnect switches from HIS Renewables ensure safe, efficient, and standards-compliant DC isolation in large-scale PV systems. Ideal for modern trunk solutions at industrial scale.
Oliver Glenz
Oliver GlenzGet expert advice now
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Generatoranschlusskasten – HISbox: leistungsstark

High Performance

Designed for high-voltage DC circuits up to 1500 V DC and high current loads – ideal for industrial and utility-scale projects.

Generatoranschlusskasten – HISbox: konfigurierbar

Flexible

Up to 4 DC inputs, optionally with gPV fuse protection and versatile connection options for project-specific requirements.

Generatoranschlusskasten – HISbox: langlebig

Durable

Robust enclosures (IP54–IP65, Protection Class II, IK08), UV-resistant and suitable for both copper and aluminium conductors.

Reliable DC Isolation for Industrial Trunk Systems

The HDC series solar DC disconnect switches have been specifically developed for industrial-scale photovoltaic systems, enabling safe and precise isolation of DC circuits – even at high currents and voltages. They are a central element of modern trunk systems that combine multiple string outputs, shorten cable routes, and make overall installation more efficient.

Supporting up to four DC inputs, optionally integrated gPV fuselinks, and modular connection variants, the disconnect switches can be precisely tailored to the design requirements of your PV system. With high switching capacity up to 1000 V DC (C&I) and 1500 V DC (Utility Scale), they ensure maximum safety and reliable system availability.

The robust, fully insulated enclosures with high impact resistance and UV stability are ideal for demanding industrial and outdoor environments. Thanks to compatibility with both aluminium and copper conductors, the PVDC disconnect switches integrate seamlessly into existing and new trunk architectures. The HDC series thus delivers maximum operational safety, flexibility, and efficiency for any industrial application.

Technical Highlights

  • Voltage ranges: DC disconnect switches for 1000 V DC and 1500 V DC

  • Load break switch technology for safe switching under load

  • Current ranges up to 630 A (1500 V DC)

Oliver Glenz
Oliver Glenz

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Application Areas

DC-Combiner (1500 V) mit 14 Strings und Kabelverschraubungen im Ein- und Ausgang

  • Industrial PV trunk systems

  • Utility-scale solar parks

  • C&I rooftop systems and infrastructure projects

  • Maintenance and service points with defined segmentation

  • Modernisation, retrofit, and repowering of existing systems

DC Disconnect Switches for Maximum Safety and Flexibility

With their high switching capacity, robust technology, and modular configurability, the HISbox PV DC disconnect switches are the ideal choice for industrial trunk solutions. They reduce installation costs, increase system availability, and ensure maximum operational safety in demanding system concepts.

Oliver Glenz

Planning an industrial PV system? We advise you on the optimal HISbox configuration with disconnect switch

Get in touch
Oliver Glenz – Sales and Division Management
+49 (0) 6068 9314 430sales@his-renewables.com