HomePress ReleasesNew Photovoltaic Fuses Provide Rugged Circuit Protection

New Photovoltaic Fuses Provide Rugged Circuit Protection

The PV fuse protects PV roof shingles from reverse overcurrent that can cause heat and fire, suitable for next-gen integrated solar shingles

Littelfuse has launched the 400PV Fuse series, a 2410 size, surface mount design (SMD) circuit protection component that offers low resistance for photovoltaic (PV) applications. 

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The 400PV is specifically designed to address the latest trend in solar roofing by enabling PV shingles that integrate both the shingles with the PV cells while incorporating protection that meets the UL 248-19 standard for PV applications. This new development helps eliminate mounting separate solar panels over the existing roofing, allowing the use of the new integrated PV shingles to serve in a dual function – as the protective roofing material while collecting electricity to power the building.

Key Benefits: 

  • Compliant with UL 248-19 standard for photovoltaic (PV) power systems design.
  • Avoids nuisance of opening due to high-reliability performance, 10,000 A max interrupting current at rated voltage.
  • Saves PC board space with surface mount design (SMD) and 2410 size, suitable for both leaded and lead-free soldering.
  • Environmentally friendly 100% lead-free, halogen-free, and RoHS compliant.

“The 400PV Fuse series innovation enables the next generation of smart home designs to utilise photovoltaic roof shingles to power up everything in a house that requires power,” said Boris Golubovic, Vice President, Marketing and Strategy at Littelfuse. “The protection provided by these PV fuses help ensure the operational longevity, maintenance convenience, and safety of solar home and building applications.”

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The 400PV Fuse series is available in tape and reel packaging. Sample requests can be placed through authorised Littelfuse distributors worldwide. 


Vinay Prabhakar Minj
Vinay Prabhakar Minj
Vinay Prabhakar Minj is a technology writer and science communication specialist with a Master’s degree in Communication of Science and Innovation (Science Communication). He is a prolific contributor to Electronics For You, where he has authored over 1,000 articles covering electronics, semiconductors, embedded systems, IoT, and emerging technologies. With a strong foundation in science communication, Vinay focuses on translating complex engineering concepts into clear, accessible, and application-oriented content. His work spans topics such as sensor technologies, chip design, wireless systems, and next-generation electronics, making advanced innovations easier to understand for engineers, students, and industry professionals. Through his extensive contributions, he has built a reputation for delivering reliable, well-researched, and practical insights that help readers stay updated with the rapidly evolving electronics ecosystem. His writing bridges the gap between technical depth and real-world usability, supporting both learning and decision-making in the field.

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