Question about Seplos fuse

[dzhimiga]

Hi, can you tell me why Seplos equips its battery assembly boxes with a 400 Amp fuse. After all, the BMS is designed for a current of 200 Amps. Maybe it makes sense, for example, to change it to a 250 Ampere fuse?

 

[houseofancients]

Hi, can you tell me why Seplos equips its battery assembly boxes with a 400 Amp fuse. After all, the BMS is designed for a current of 200 Amps. Maybe it makes sense, for example, to change it to a 250 Ampere fuse?

That fuse is to protect the BMS/inverter.
Cells in short can deliver well more than 400a

 

[dzhimiga]

Perhaps I didn't formulate the question correctly. I understand the purpose of the fuse, but I don’t understand why its value exceeds the BMS currentIf. My inverter's maximum charge and discharge current is 240 Amps, then why would I install a 400 Amps fuse. Is it logical to replace it with 250Amp?