While majority of the older houses have had at one point updated the electrical will have a circuit breaker panel, some older houses still use the old screw on fuses. I was browsing online and came across fuse circuit breakers. It appears to be just screw into the fuse socket and has a popout switch to reset. Seems nice not having to replace the fuse or needing to run to the store to get replacement fuses. Plus it can help reduce the chance of someone putting in a higher amp fuse. I haven't seen these in stores before. Anyone have experience with those? Thanks.

I seen those in 3 versions

The 1st is Soviet round screw in, you can se them here http://cs-cs.net/zamena-staryx-probok-na-avtomaty-v-xrushhyovke. Those have awfull current interruption capability - there is a 2-point breaking contact (a stick moving away from 2 fixed contact points) in the base, and while the moving contact is going quite far away, the fixed 2 contacts are next to each other without distance so can keep arcing after it tripped, in addition to awkward mechanics

The 2nd is German PicoStotz Stotz Kontakt. It goes into a rectangular fuse carrier instead of the fuse. The original fuse the thing replaces is a rewirable fuse - The fuse is a ceramic plug with 2 contacts and screws. The user connects a piece of fuse wire between the screws and plugs the plug into the fuse carrier. When the fuse blows the user unplugs and replaces the wire in the plug. The wire was sold in small rolls for each current - 5A wire, 10A wire and so on. In later years with the fuse wire beingunavailable in stores some users resorted to putting copper strands from standed copper wires in the fuses. The wires generally do blow but at unknown current and it is easy to make a fuse that will blow at too low or too high current this way

The 3rd is modern German ABB breaker which have a base like 2 coppr tubes. I never seen those in use but seen them in a hardware shop when i visited in Italy some years ago

I have the Soviet one and the PicoStotz SOMEWHERE - ill post if i find them

I have seen them in Home Cheapo in the fuse section, so they are commercially available.