Fuse in EV Battery Pack Design

As Prosche used the 800VDC battery in their model luxury Taycan EV, Their sales reach 20,000 sets.Many EV's will come soon with higher battery pack system voltage. Because higher voltage rating provides better overall system efficiency using smaller, more economical conductors while meeting the needs of higher voltage battery packs.

Which fuse will mate 800VDC system?

For EV fuse, Fuse ratings should be at least 800VDC or higher; 1000VDC could be good choice.

1，EVK10-(amp)-T

With fuse current of 15A， 20A， 25A，30A 

With M5 screw

2， EVK14-(amp)-T

With fuse current of 35A， 40A，50A 

With M5 screw

3, EVK22-(amp)-T

With 60A, 70A, 80AMP rated current, It need to mate M6 screw

4, EVK25-(amp)

70A, 80A, 90A, 100A

5, EVK30-(amp)

125A, 150A 175A, 200A

This is the main power fuse used in many vehicles. Such as BMW i3.

6, EVK40-(amp)

225A, 250A,275A, 300A

7, EVK50-(amp)

350A, 400A

This is the main power fuse used in many EV battery pack designs which the maximum power is around 220KW( Tesla model 3 2021 version, BMW i3).

8, EVK60-(amp)

450A, 500A, 550A, 600A

For BMW i4,The maximum power reach 394KW, they will need to use EVK60-600 to have proper protection.

Why EV fuse is a must to use in Battery Electrical Storage System?

EV pack-fuse provides the ultimate protection of the battery pack offering reliable clearing of DC fault currents.