Are my fuses right?

[Digzoom]

I have a new Transend 245 explor and have notice 40 amp fuses in my fuse box. I thought my trailer uses 15 and 30 amp fuses. Is this correct?

Thanks.

[gbkims]

I have a new Transend 245 explor and have notice 40 amp fuses in my fuse box. I thought my trailer uses 15 and 30 amp fuses. Is this correct?

Thanks.

Yes correct.
The 40A Fuses are for protecting the Converter's DC side from Reverse Polarity if the 12V battery connections got swapped backwards.

[Digzoom]

Thank you gbkims! much appreciated!