Mersen HP10J400

Mersen HP10J400

Regular price$300.00
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2 available


  • UL listed to UL listed to Standard 248
  • File E333668 (70A to 600A)
  • File E2137 (70A to 400A)
  • CSA Component Certified C22.2 (70A to 400A)



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