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Approvals & Standards

  • UL Listed to Standard UL2579 File E333668
  • CSA Component Certified C22.2

Key features & benefits

Mersen’s HP6J photovoltaic (PV) fuse series was engineered specifically for DC Recombiner Boxes in the protection of 600VDC photovoltaic systems. Its enhanced construction makes it ideal for continuous temperature and current cycling withstand adding to system longevity. The 600VDC rated HP6J 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(r) fuse line.

More specifications


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

Product Specifications

Frequency (Hz)

50/60   Hz

Ampere range

70 to 600 A  

Fuse class




UL file number

File E333668  

UL Category Code


REACH Compliant


Max Operating Temp.

80   °C

Max Storage Temp.

80   °C

Min Storage Temp.

-25   °C

Harmonized System


References in this serie  (18)

Item number - Catalog No.

Ampere rating

Fuse size

Total Clearing I2t

Indication System

Product weight


100   A




0.1134   kg


110   A




0.3629   kg


125   A




0.3629   kg


150   A




0.3629   kg


175   A




0.3629   kg