SPXI Series - 1500 Vdc - In-Line Solar Fuses

spxi fuses
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The Littelfuse SPXI solar fuse is designed to integrate into an in-line assembly within a wire harness. The fuse provides photovoltaic (PV) protection that meets UL 2579 for photovoltaic applications. The SPXI can be electrically insulated by either overmolding or using approved heat-shrink.


  • UL 2579 Recognized
  • Meets IEC 60269-6 electrical performance requirements
  • 30,000 A interrupting rating
  • No fuse holder required


  • Photovoltaic wire harness

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VDC (V)Interrupting RatingOpeningStockCompare
SPXI02.52.5150030000Fast-Acting (F)Check
SPXI03.53.5150030000Fast-Acting (F)Check
SPXI0044150030000Fast-Acting (F)Check
SPXI0066150030000Fast-Acting (F)Check
SPXI0088150030000Fast-Acting (F)Check
SPXI01010150030000Fast-Acting (F)Check
SPXI01212150030000Fast-Acting (F)Check
SPXI01515150030000Fast-Acting (F)Check
SPXI02020150030000Fast-Acting (F)Check
SPXI02525150030000Fast-Acting (F)Check
SPXI03030150030000Fast-Acting (F)Check