Littelfuse 10EV & 20EV High-Voltage Automotive Fuses

Littelfuse 10EV and 20EV High-Voltage Automotive Fuses provide a 20kA interrupting rating and 500VDC voltage rating while operating over a -40°C to +125°C temperature range. The Littelfuse 10EV Fuses are cylindrical, low-voltage, high-current devices that employ diffusion pill technology to provide time-delayed protection to circuits in electric vehicles (EVs) and hybrid passenger vehicles. 20EV Fuses are bolt-down fuses that can be installed in most EVs and hybrid passenger vehicles for circuit protection.


  • 20kA at 500VDC interrupting rating
  • 500VDC voltage rating
  • -40°C to +125°C operating temperature range
  • Typical weight
    • 9.5g (10EV)
    • 35g (20EV)
  • Mounting torque
    • M5 of 4.5±1Nm (ISO prescription for ZXISO and ZXBDP versions) (10EV)
    • M6 of 6±1Nm (ISO prescription), 10Nm maximum allowed (20EV)
  • Melamine body with UL 94V-0 flammability rating
  • End caps
    • Nickel-plated brass (10EV)
    • Zinc alloy (20EV)
  • Tin-plated copper alloy terminals
  • Refers to ISO 8820-8
  • Available in cartridge version (10EV)


  • Automotive
    • EVs
    • Hybrid passenger vehicles

10EV Ratings and Color Coding

Chart - Littelfuse 10EV & 20EV High-Voltage Automotive Fuses
Published: 2023-08-04 | Updated: 2023-09-14