Eaton’s EV Safety Tech Advances

Eaton, an intelligent power management company, will present its innovative suite of electrified vehicle (EV) safety technologies at The Battery Show Europe from June 18-20. These advancements include the Breaktor® circuit protection technology, a 3-in-1 battery vent valve, a fuel tank isolation valve (FTIV), High Power Lock Box terminals, and Eaton Bussmann® series fuses.

Key Highlights:

  • Breaktor® Circuit Protection Technology:
    • Combines functions of fuses, pyro switches, and contactors.
    • Provides fast, safe, and reliable protection for high-power battery and inverter systems.
  • 3-in-1 Battery Vent Valve:
    • Capable of passive and active venting and battery-case leak-check.
    • Ensures complete leak testing of fully assembled battery packs.
    • Improves vehicle safety during normal operation and flooding situations.
  • Fuel Tank Isolation Valve (FTIV):
    • Releases pressure in hybrid-electric vehicle gas tanks.
    • Prevents spit back during refueling.
  • High Power Lock Box Terminals:
    • Interface to conductors for external circuits.
    • Offers space-saving profile, superior performance, cost savings, and reduced manufacturing complexity.
    • Provides efficiency, reliability, and protection against the elements.
  • Eaton Bussmann® Series Fuses:
    • Feature ratings up to 1,000 VDC and 600 amps.
    • Designed to manage and protect charging systems of electric commercial, passenger, and high-performance vehicles.

Breaktor® Circuit Protection Technology:

Eaton’s Breaktor® combines fuses, pyro switches, and contactors into a single, resettable device. This innovation addresses the coordination challenge between fuses and contactors as electric vehicle power levels rise, ensuring fast, safe, and reliable protection for high-power battery and inverter systems.

3-in-1 Battery Vent Valve:

This first-to-market solution by Eaton provides passive and active venting and includes a battery-case leak-check mechanism. During testing, it opens to allow complete leak checking of the fully assembled battery pack. This innovation ensures that all sealing surfaces are thoroughly tested against water ingress, enhancing vehicle safety in normal and flood conditions. The valve’s spring-based actuation technology allows for flexible design to meet specific opening pressures, driving economies of scale.

Fuel Tank Isolation Valve (FTIV):

Eaton’s next-generation FTIV releases pressure in the gas tank of hybrid-electric vehicles, which do not operate their gas engines continuously. It ensures the tank is depressurized during refueling, preventing spit back.

High Power Lock Box Terminals:

Eaton’s HPLB terminals create an interface for external circuits and offer significant advantages, including space savings, superior performance, cost reduction, and decreased manufacturing complexity. These terminals provide efficiency, reliability, and environmental protection, making them ideal for current and future EV solutions.

Eaton Bussmann® Series Fuses:

These fuses, rated up to 1,000 VDC and 600 amps, are optimized for high-powered EVs. They are designed to protect and manage charging systems in electric commercial, passenger, and high-performance vehicles, such as sports cars and large SUVs.

About Eaton:

Eaton is a leading intelligent power management company dedicated to environmental protection and enhancing life quality. Founded in 1911 and listed on the New York Stock Exchange for over a century, Eaton reported revenues of $23.2 billion in 2023. The company serves customers in more than 160 countries, focusing on sustainability and helping manage power efficiently and effectively. For more information, visit

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