Special Purpose Fuses

Photovoltaic Fuses

HelioProtection® HP12NHXL Photovoltaic fuse-links gPV 1250VDC

Mersen HP12NH photovoltaic (PV) fuse series was engineered and designed specifically for the protection of photovoltaic systems. Helio-Protection® HP12NH fuse links are designed for the protection of cables in a PV group of chains when a short circuit occurs in a panel (main fuse category). This HelioProtection® main fuse range enlarges our PV fuse links offering on a size having a worldwide acceptance. They are of the gPV type and comply with both IEC 60269-6 and UL 2579 PV standards. They are also available with bolted type blades for direct mounting.



  • Global acceptance
  • Low fault current interrupting capability
  • Temperature cycle withstand capability
  • Durable construction for enhanced system longevity
  • High efficiency with low power losses
  • Available in two versions: Plain Blade & Direct Mounting


  • Volts (VDC) 1250 VDC
  • Ampere Range (A) 125 - 400 A
  • I.R DC (kA) 50 kA
  • Speed / Characteristic gPV
  • Standards IEC 60269-6
    UL 2579
    RoHS compliance
  • Application All photovoltaic applications
    Inverter DC input protection
    Re-combiner applications (sub combiner, array combiner, master combiner)
  • ROHS Compliant Consult Technical Services
  • Lead Free Consult Technical Services
  • CE conformity Consult Technical Services


  • HP12NH1XLGPV125 - G1039744
  • HP12NH1XLGPV160 - H1039745
  • HP12NH2XLGPV200 - J1039746
  • HP12NH2XLGPV250 - K1039747
  • HPBB1XL1PPFS - Y1039598
  • SP36121 - B1026353


  • CAD Drawings

    • Drawing 1025722 A :   PDF (159 KB)


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