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Approvals & Standards

  • UL Listed to Standard UL 248-19
  • CSA Component Certified C22.2
  • IEC 60269-6

Key features & benefits

Mersen’s GEN2 of the HP15M photovoltaic (PV) fuse series is designed specifically to meet the severe temperature and current cycling of a PV system. Subjected to stringent cycle testing, the GEN2 provides enhanced reliability. These 1500VDC rated fuses are designed for low minimum breaking capacity capabilities of 1.35 times the fuse rated current value, which allows for safe circuit interruption under typical low fault current conditions. In addition to the standard ferrule terminal, parts are also available with Crimp Cap terminals for in-line fuse applications. The unique wire crimp terminal (CC option) permits solderless wire-to-fuse connection for overmold encapsulation of fuse and wiring. Protect your off-grid or grid tied PV system from unexpected line faults using Mersen’s HelioProtection® fuse line.

More specifications


  • All photovoltaic applications
  • PV string/array level protection
  • Combiner box applications
  • In-line PV module protection
  • Inverters
  • Battery charge controllers

Product Specifications

Item number


Item Description (ERP)

1500VDC 20A 10X85MM GEN2  

Short Description

HelioProtection® Fuse 1500VDC 20A gPV HP15M - PV Series Gen2  



Rated voltage DC UL

1500   V

Rated voltage DC IEC

1500   V

Ampere Rating

20   A

ROHS Compliant


Fuse Class




Fuse Size




AC Max I.R./Breaking Capacity: I1

50   kA

Power Dissipation at Rated Current Value

4.28   W

Power Dissipation at Intermediate Current Value

1.77 @ 0.7 In   W

Connection/Terminal Material

Tin-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

0.03   lb

Product Diameter

0.41   in

Product Length

3.34   in

Sell Pack Quantity

5   Each

Sell Pack Weight

0.15   lb

Sell Pack Width

0.56   in

Sell Pack Length

2.06   in

Sell Pack Height

3.25   in