

Replacing old fuses in my fuse box.
Alright all?
Just brought a house. Fuse box (on the left) is old and in updating it with MCBs. Quick questions.
is it as easy as, turn off the power and slot the new one where the old one was?
the new ampage is slightly higher (for example, 6a instead of 5a or 32a instead of 30a) but everything I've read says that's ok. Is it?
Thanks.