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Approvals & Standards


  • IEC 60269-6
  • RoHS compliance
  • UL 248-19 for fuses (pending for 1XL, 2XL)
  • (E358319, Volume 1, Section 1)
  • UL 4248-19 for fuseholders, Photovoltaic
  • (E362644 Volume 1)


Key features & benefits

Mersen HP15NH photovoltaic (PV) fuse serie was engineered and designed specifically for the protection of photovoltaic systems. Helio-Protection® HP15NH 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 1XL/2XL/3L sizes having a worldwide acceptance. They are of the gPV type and comply with both IEC 60269-6 and UL 2579 PV standards.
They are available with plain blades, bolted blades for direct mounting with and without striker.

More specifications



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


Product Specifications

Item Number


Catalogue No.


Item Description (ERP)

1500VDC NH3L gPV 500A Bolt C/P  

Short Description

NH fuse-link gPV, 1500VDC, size 3L, 500A, for direct mounting, with striker  



Rated voltage DC UL

1500   V

Rated voltage DC IEC

1500   V

Ampere Rating

500   A

ROHS Compliant


AC or DC




Fuse Size



Direct Mount  

Max. Rated Breaking Capacity DC

200 kA @ 1500 V, L/R = 3 ms  

Power Dissipation at Rated Current Value

74.5   W

Power Dissipation at Intermediate Current Value

30.2W @ 0.7 In   W

Indication System


Indication System Type


Connection/Terminal Material

Silver-Plated Copper  

Connection/Terminal Type

DIN Type Blades  

Product Weight

4.365   lb

Product Width

4.45   in

Product Length

8.07   in

Product Height

2.91   in

Sell Pack Quantity

1   EA

Sell Pack Weight

4.365   lb

Sell Pack Width

4.53   in

Sell Pack Length

9.06   in

Sell Pack Height

4.13   in