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Approvals & Standards

  • IEC 60269-6
  • UL 2579
  • RoHS compliance

Key features & benefits

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.

More specifications


  • All photovoltaic applications
  • Inverter DC input protection
  • Re-combiner applications (sub combiner, array combiner, master combiner)

Product Specifications

Item Number


Catalog number



Photovoltaic fuse gPV 1250VDC IEC 1250VDC UL Size 3L 315A With DIN Type Blades For Direct Mount  

EAN/UPC code


Rated voltage DC UL

1250   V

Rated voltage DC IEC

1250   V

Rated current

315   A





Max. Rated Breaking Capacity DC

50 kA @ 1250 V, L/R = 1 ms  

Power Dissipation at Rated Current Value

73   W

Power Dissipation at Intermediate Current Value

22 W @ 0.7 In   W

Contact materials

Silver-Plated Copper  

Connection/Terminal Type

DIN Type Blades  

Product Weight

1.66   kg

Product Width

70.00   mm

Product Length

205.00   mm

Product Height

77.00   mm

Sell Pack Quantity

1   Each

Sell Pack Weight

1.66   kg

Sell Pack Width

120.00   mm

Sell Pack Length

230.00   mm

Sell Pack Height

110.00   mm