What size fuse needs to be fitted to mcb board for a ring main

Question

What size fuse needs to be fitted to mcb board for a ring main

Answer 1

I'm not quite sure what you are looking for but is it something for a ring buss or for a main circuit board or a motherboard in a computer.  Anyway you look at it though it should tell you on the board or in the equipment what the max fuse size should be or what it can handle.  Always go by manufacture specs.