Bussmann® EV fuses

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Bussmann EV Fuse

Bussmann EV Fuses

Eaton’s Bussmann® series electric vehicle (EV) fuses are specially designed for robust protection, featuring compact, high-speed designs with advanced durability simulation capabilities. These fuses support 500V to 1000V DC vehicle systems, with fuse ratings up to 1000A, offering superior DC protection for drive, auxiliary, and battery systems. Custom solutions are also available for higher voltage and current ratings.
Bussmann EV Fuses

Details

Eaton’s Bussmann® Series EV Fuses

Bussmann EV and Hybrid Electric Vehicle (HEV) fuses are designed to protect against overloads and short circuits in key areas such as the main battery pack, battery module, junction box, and charging stations. These fuses are suitable for applications ranging from 240V to 1000V.

Product Highlights:

  • Voltage ratings: 500VDC to 1000VDC
  • Current range: 10A to 500A
  • Fast-acting square-body, ceramic tube power fuses, auxiliary fuses, and more
  • Ideal for electric and hybrid vehicles, as well as energy storage systems

Key Features of EV Fuses: EV fuses are designed to protect electrical circuits, equipment, and batteries in electric vehicles from electrical faults such as overloads and short circuits. These fuses are built to handle direct current (DC) voltage, with voltage ratings of 500VDC or 1000VDC. Unlike standard DC fuses, EV fuses are built with enhanced durability to withstand vibration, g-forces, and environmental factors. They are designed to manage high in-rush currents, thermal stresses, and continuous current fluctuations, ensuring reliable protection.

Difference Between EV Fuses and Standard DC Fuses:

  • Construction: EV fuses are made from melamine-laminated glass fiber, offering greater robustness compared to the ceramic casings in standard DC fuses.
  • Performance: EV fuses are engineered to meet the opening speed and current demands of electric vehicles, handling thermal and mechanical stresses more effectively.

Specifications:

  • Voltage: 500VDC and 1000VDC
  • Amperage:
    • EV20: 50-150A
    • EV25: 100-250A
    • EV30: 200-400A
    • EV10 (all versions): 20-50A
  • Interrupting Ratings: Up to 20 kA DC
  • Standards: JASO D622 and ISO 8820-8
  • Compliance: IATF 16949 automotive quality system, RoHS compliant

Square Body Fuses:

  • Voltage: 500V up to 900A, 1000V up to 800A
  • Interrupting Ratings: Refer to catalog for specific ratings

These fuses are ideal for pre-production and sample testing in electric vehicles, providing reliable circuit protection to meet the growing demands of the EV market.