Littelfuse Launches Circuit Protection Fuses Rated 35 to 60 Amperage

  • The introduction of the device strengthens the company’s SPXI series of in-line solar fuses
  • These 1500V DC rated fuses help in reducing damages to solar panels

Littelfuse, a global manufacturer of circuit protection, power control, and sensing applications has strengthened its SPXI series of in-line solar fuses by including 35 to 60 amperage models. These 1500V DC solar fuses can protect photovoltaic (PV) installations from overloads and short circuits to minimize damage to solar panels.

The products have been designed to integrate into in-line assemblies within a wire harness. A single body case design increases reliability and simplifies retrofitting within existing solar power systems.

The new addition to SPXI series meets the UL248-19 standard, with 50 kA DC interrupting rating


According to Sakthidharan Krishnamoorthy, product manager, Littelfuse Industrial Business Unit, the demand for solar power systems as a source of clean, renewable energy are growing. Therefore, Littelfuse is committed to providing higher amperage protection in a design that can be easily retrofitted within existing in-line configurations and timely meet the increasing needs of the industry.

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