A new line of high-voltage fuses from power management company Eaton meets the requirements for use in the latest high-powered electrified vehicles (EVs) with ratings up to 1,000 V DC and 600 A.

The EVK series fuses are designed to manage and protect the charging systems of electric commercial, passenger and high-performance vehicles such as sports cars and large sport-utility vehicles. These Bussmann series fuses enable more advanced EV system architectures and support vehicle acceleration and range in an efficient package.

Source: EatonSource: Eaton

Using its proprietary simulation testing, Eaton can verify proper fuse-life performance and reliability for the lifetime of the vehicle. When severe short circuits occur due to a fault, such as a crash or an insulation break, the fuses isolate all the available energy and safely interrupt the circuit. Current limitation is also important, as it restricts total fault energy, enabling downstream components in the system to survive the fault event.

The Bussmann series full line of fuses require up to 33% less space than traditional fuse solutions, offer weight reduction and provide short-circuit protection for conductors. The series is designed with the future in mind as battery requirements increase and technologies, such as energy dense solid-state batteries, are introduced. Bussmann series fuses are available in eight different frame sizes, ranging from 15 A for auxiliary components up to 600 A for battery protection when the full application current is flowing. The fuses are designed to distribute heat away from weak spots, a key benefit for any fuse rating and especially critical for high-power fuses.

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