Rewirable fuses only protect the circuit and will not save
Rewirable fuses are often found in older homes and
are no longer used in new installations. The major
hazard with rewirable fuses is the ability for home
owners to replace the wire filament with incorrectly
rated fuse wire, or in some cases, hairpins, paper
clips, nails etc. This is very dangerous and defeats
the purpose of the fuse all together. Modern RCDs
are far safer and can be reset with ease.
Rewirable fuses are usually porcelain construction. You
can pull the front out which exposes the fuse filament.
Rewirable fuses will be located in your switchboard