Power management company Eaton’s e-mobility division has introduced a new line of Bussmann fuses called the EVK series. The company says they meet the requirements for use in the latest high-powered EVs with ratings of up to 1000 VDC and 600 A.

The fuses are designed to manage and protect the charging systems of electric commercial, passenger and high-performance vehicles such as sportscars and large SUVs. They enable more advanced EV system architectures, and support vehicle acceleration and range, Eaton says.

Using its proprietary simulation testing, Eaton can verify proper fuse-life performance and reliability for the lifetime of a vehicle. When severe short-circuits occur owing to a crash or an insulation break for example, the fuses isolate all the available energy and safely interrupt the circuit.

Limiting current is also important, as it restricts total fault energy, enabling downstream components in the system to survive a fault.

Bussmann fuses require up to 33% less space than traditional components. They are available in eight different frame sizes, ranging from 15 A for auxiliary components to up to 600 A for battery protection when the full application current is flowing, and are designed to distribute heat away from weak spots.