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
Contact us

Approvals & Standards

  • UL Recognized: UL File: E60314; DC: 50-600A, 700VDC
  • Power Cycling & Vibration
  • REACH/RoHS compliant

Key features & benefits

Electrification in construction, marine, agriculture, manufacturing, mining, and other industries, in addition to transportation, is a critical trend in cleaner energy. The D70QS North American style round body high-speed fuse series is Mersen’s next evolution for high-power conversion applications protection for those industries shifting to Direct Current(DC) systems today. The D70QS fuse series is specifically designed to reduce the I²t, peak let-through current, and arc voltages during fault conditions to protect applications such as battery charging systems and other DC components like relays and contactors.

More specifications


  • High Power battery charging and management systems protection
  • Energy Storage Systems (ESS)
  • Electrical Energy Storage (EES)
  • Battery Disconnect Unit (BDU)
  • Battery pack protection
  • DC Fast-Charging station for EV applications
  • Backup protection for
  • DC relay/disconnector/switch
  • Protection of 700VDC or less, UPS and inverters

Product Specifications

Item Number


Catalog number



DC Fuse 700VDC UL 600A Max.Bolted  

EAN/UPC code


Rated voltage DC UL

700   V

Rated current

600   A

ROHS Compliant


AC or DC



High Speed  



Max. Rated Breaking Capacity DC

20 kA @ 700 V, L/R ≤ 1 ms  

Minimum breaking capacitiy (MBC)

2950   A

Power Dissipation at Intermediate Current Value

16.6 W @ 0.5 In  

Contact materials

Tin-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

0.5443   kg

Product Diameter

50.8   mm

Product Length

113.5   mm

Sell Pack Quantity

4   EA

Sell Pack Weight

2.2861   kg

Sell Pack Width

114.3   mm

Sell Pack Length

209.6   mm

Sell Pack Height

50.8   mm