Fuse for EG4-LL x6 in a rack

[layertone]

Which fuses would be recommended in between bus bar and an entire rack of 6x EG4-LL's? Using 2/0 copper, thanks!

 

[Dank Farrik]

Depends on your inverter (i.e. what's the max expected power usage). Some discussion on fuse sizing here:

Class T fuse Size for two LV6548 Controllers - with 4 48v LiFePO4 batteries

Planning on using a Class T fuse, rated at 300a per controller. is this the correct fuse for use with 4 48v LiFePO4 batteries? And will I be able to add two more batteries later with this fuse? Thanks for any help, getting a little confused on this issue. Batteries are "48V 100AH LiFePower4...

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[Mr-Sandman]

Over current protection is based on the wire size, not the device. 2/0 is rated to 200 amps, so 1.25X200 = 250 amp fuse

Edit: I quoted 200amps for 2/0 but I was making some assumptions on the temperature rating of your cable (high temp 195f). A safer use is 175amp max current so 1.25X175 = 219amp fuse, So 225 amp would probably be closest size.

 

[Dank Farrik]

Over current protection is based on the wire size, not the device. 2/0 is rated to 200 amps, so 1.25X200 = 250 amp fuse

Edit: I quoted 200amps for 2/0 but I was making some assumptions on the temperature rating of your cable (high temp 195f). A safer use is 175amp max current so 1.25X175 = 219amp fuse, So 225 amp would probably be closest size.

You are right, I missed the part where OP said it's between bus bar and the batteries.