$726.75 per piece


Brand / Manufacturer: MERSEN (FERRAZ SHAWMUT)

Amperage Rating: 500

Voltage: 1000

UPC: 0782001462819

Department: 16

Series: HelioProtection

Catalog Number: HP10J500

Catalog / Class: Photovoltaic

Speed: Very Fast Acting

SKU: HP10J500

Categories: , , , , , ,

*Prices Subject to Change



Mersen’s HP10J photovoltaic (PV) fuse series is designed specifically for DC Recombiner Boxes in the protection of 1000VDC photovoltaic systems. Its robust construction makes it ideal for continuous temperature and current cycling withstand adding to system longevity. The 1000VDC rated HP10J designed for low minimum breaking capacity capabilities of 1.35 times the fuse rated current value, allows for safe circuit interruption under typical low fault current conditions produced by PV arrays. Protect your off-grid or grid tied PV system from unexpected ground faults and line faults using Mersen’s HelioProtection® fuse line.

  • UL Listed to standard 2579 – Photovoltaic Fuses
  • Smallest available footprint in the industry
  • Enlarged mounting holes
  • Low fault current interrupting capability
  • Durable construction for enhanced system longevity
  • Temperature cycle withstand capability
  • Guaranteed operation at temperature extremes
  • Blown fuse indicator options available (EI option)
  • 200A to 400A available in NH3 mounting.


  • Re-combiner box (sub-combiner, array combiner, master combiner) applications
  • Inverter DC input
  • Battery charge controllers