Skip to main content

All locations

Please select your country & language

China | 中国
Germany | Deutschland

Your country is not in the list?

Go to our international website:

Mersen EP International Website
Country / Language: 
Contact us

Approvals & Standards

  • UL Listed to Standard UL2579
  • CSA Component Pending
  • IEC 60269-6

Key features & benefits

Mersen’s HP15M photovoltaic (PV) fuse series is designed specifically for the protection of PV string wiring for 1500VDC utility scale photovoltaic systems. Its robust construction makes it ideal for continuous temperature and current cycling withstand adding to system longevity. The 1500VDC rated HP15M, 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 and meets the trend for increased voltage for higher efficiency. In addition to the standard ferrule terminal, parts are available with Crimp Cap terminals for in-line fuse applications. The unique wire crimp terminal (CC option) permits olderless 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 CRIMP CAP  


HelioProtection® Fuse 1500VDC 20A gPV Crimp Cap HP15M - Photovoltaic Series  

EAN/UPC code


Rated voltage DC UL

1500   V

Rated voltage DC IEC

1500   V

Rated current

20   A

ROHS Compliant


Fuse class




Fuse size




AC Max I.R./Breaking Capacity: I1

50   kA

Power Dissipation at Rated Current Value

4.71   W

Power Dissipation at Intermediate Current Value

1.88 @ 0.7 In   W

Contact materials

Tin-Plated Copper  

Body/Insulating Material


Product Weight

0.0181   kg

Product Diameter

11.4   mm

Product Length

112   mm

Sell Pack Quantity

5   Each

Sell Pack Weight

0.0907   kg

Sell Pack Width

14.2   mm

Sell Pack Length

60.5   mm

Sell Pack Height

114.3   mm