What are the cables connected to the fuse link ?

[Kramours]

Hi,

the main 140A fuse on the + terminal blows when I connect the brown connector with red and white cables to the fuse link (also connected to the + terminal). See attached pic.

Is anyone able to tell me to what these cables are connected ?

Thanks in advance :)

 

[Kramours]

Found it. Battery polarities reversed by themselves. Never seen that before.