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Approvals & Standards

  • IEC 60 269-4
  • ISO 8820-8
  • JAS0 D622

Key features & benefits

EVpack-fuse line-up belongs to the new DC Over-Current protection (O.C.P.) range developed by MERSEN to address specific needs in EV/HEV and Battery Electrical Storage System.
EVpack-fuse provides the ultimate protection of the battery pack offering reliable clearing of DC fault currents.
It has been specifically engineered and tested to provide DC applications best-in-class protection performance: Up to 500VDC, Current rating (In)= 60 to 800A, Interrupting Rating (IR) = 30kA, L/R ≤2.5ms, Minimum Breaking Capacity (MBC) < 2kA for a perfect matching with DC contactor.

More specifications


  • EV/HEV
  • Electrical Energy Storage
  • Battery pack protection
  • Battery Disconnect Unit (BDU)
  • Battery Junction Box for auxiliaries
  • Battery charger
  • Supercapacitor pack protection
  • Backup protection for DC relay / disconnector / switch
  • Maintenance Safety Disconnect (MSD)

Product Specifications

Item Number


Catalog number


Item Description (ERP)



EVpack Fuse 500VDC UL 500VDC IEC 125A 20G Max. BC: 30kA@500V,L/R≤ 2.5ms Bolted  

EAN/UPC code


Rated voltage DC UL

500   V

Rated voltage DC IEC

500   V

Rated current

125   A

ROHS Compliant


AC or DC




Fuse size




Melting I2t

1420   A²s

Max. Rated Breaking Capacity DC

30 kA @ 500 V, L/R ≤ 2.5ms  

Max. Time to clear MBC

36   s

DC Min. Breaking Capacity (MBC)

250 A @ 500 VDC, ≤ 2.5 ms  

DC Total clearing I2t

12500 A²s  

Power Dissipation at Intermediate Current Value

3.9 W @ 0.5 In  

Contact materials

Tin-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

0.041   kg

Product Diameter

20.000   mm

Product Length

81.00   mm

Sell Pack Quantity

30   EA

Sell Pack Weight

1.3472   kg

Sell Pack Width

265.00   mm

Sell Pack Length

153.00   mm

Sell Pack Height

84.00   mm