SPF Series - 1000 VDC Solar String Fuse

SPF Solar Fuse

The SPF Solar Protection Fuse series has been specifically designed for the protection of photovoltaic (PV) systems. This family of Midget style fuses (10x38 mm) can safely protect PV (photovoltaic) modules and conductors from reverse overcurrent conditions.

As PV systems have grown in size, so have the corresponding voltage requirements. This increase in system voltage has typically been intended to minimize power loss associated with long conductor runs. Standard circuit protection devices are not designed to completely protect photovoltaic panels. However, the SPF series is UL Listed to safely interrupt faulted circuits up to this demanding voltage level.

Littelfuse offers various ampere ratings to match specific requirements in a variety of applications.

Features and Benefits

  • Designed to both UL and IEC photovoltaic specifications
  • UL 2579 Listed 1000 VDC maximum
  • 1-30 A ratings available
  • 20,000 A Interrupting Rating
  • Both PCB mount and dead-front holder options available

Access specifications, certifications, check availability and order parts below

Catalog #CertificatesAmps (A)VDC (V)Interrupting RatingOpeningSizeStockSamplesCompare
SPF001ulVDE_40033098icon1100020000Fast-Acting (F)MidgetCheckOrder
SPF001RulVDE_40033098icon1100020000Fast-Acting (F)CheckOrder
SPF002ulVDE_40033098icon2100020000Fast-Acting (F)MidgetCheckOrder
SPF002RulVDE_40033098icon2100020000Fast-Acting (F)CheckOrder
SPF003ulVDE_40033098icon3100020000Fast-Acting (F)MidgetCheckOrder
SPF003RulVDE_40033098icon3100020000Fast-Acting (F)CheckOrder
SPF004ulVDE_40033098icon4100020000Fast-Acting (F)MidgetCheckOrder
SPF004RulVDE_40033098icon4100020000Fast-Acting (F)CheckOrder
SPF005ulVDE_40033098icon5100020000Fast-Acting (F)MidgetCheckOrder
SPF005RulVDE_40033098icon5100020000Fast-Acting (F)CheckOrder
SPF006ulVDE_40033098icon6100020000Fast-Acting (F)MidgetCheckOrder
SPF006RulVDE_40033098icon6100020000Fast-Acting (F)CheckOrder
SPF008ulVDE_40033098icon8100020000Fast-Acting (F)MidgetCheckOrder
SPF008RulVDE_40033098icon8100020000Fast-Acting (F)CheckOrder
SPF010ulVDE_40033098icon10100020000Fast-Acting (F)MidgetCheckOrder
SPF010RulVDE_40033098icon10100020000Fast-Acting (F)CheckOrder
SPF012ulVDE_40033098icon12100020000Fast-Acting (F)MidgetCheckOrder
SPF012RulVDE_40033098icon12100020000Fast-Acting (F)CheckOrder
SPF015ulVDE_40033098icon15100020000Fast-Acting (F)MidgetCheckOrder
SPF015RulVDE_40033098icon15100020000Fast-Acting (F)CheckOrder
SPF020ulVDE_40033098icon20100020000Fast-Acting (F)MidgetCheckOrder
SPF020RulVDE_40033098icon20100020000Fast-Acting (F)CheckOrder
SPF025ulVDE_40033098icon25100020000Fast-Acting (F)MidgetCheckOrder
SPF025RulVDE_40033098icon25100020000Fast-Acting (F)CheckOrder
SPF030ul30100020000Fast-Acting (F)MidgetCheckOrder
SPF030Rul30100020000Fast-Acting (F)CheckOrder

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