"When I discovered that the tenants had replaced 3 out of 5 of the old cartridge fuses with thick copper wire, I realised that cartridge fuses were not safe to have in a rented house.
These plug-in MCBs are a great alternative and no time or trouble to fix. (However, they do stick out a bit, so -- depending on the location of your meter -- you may need to protect them from knocks)."
"After putting these mcb's in an 80 plus old ladies house instead of cartridge fuses to make her unit a more upto date and b make it easier for her to use herself. The lady had flooded her bathroom and water had been running through her kitchen light. With no easy way for a lady to isolate the light. The item is easy to install and to use."