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Compact 650VDC Cartridge Fuse for High-Voltage DC Power Circuits

Ideal for protecting VFDs, PV inverters, DC-DC converters, high-voltage power supplies, etc. 

The new 507 Series Cartridge Fuse from Littelfuse is ideal for over-current protection in high-voltage DC power circuits. Its small footprint simplifies creating compact designs for power conversion equipment that demands higher operating efficiencies. It is available in both standard cartridge and axial-leaded designs, is RoHS compliant and 100% lead free.

Typical applications for the 507 Series include over-current protection for variable frequency drives (VFDs), photovoltaic (PV) inverters, DC-DC converters, high-voltage power supplies, etc.


  • High DC voltage rating of 650V with interrupting rating of 150A@650VDC in a compact 6x32mm footprint
  • 1A – 8A current rating
  • Operating temperature from −55°C to 125°C


  • Provides robust over-current protection for high-voltage DC power circuits; enables compact design for power conversion equipment demanding higher operating efficiencies
  • Well suited for most commercially available 200V Class and 400V Class VFDs
  • Provides reliable protection in extreme temperature environments

Click here to go to 507 Series page

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507 Series Product Introduction

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