davetheglitz
Electrician
Correct me if I'm wrong but I believe that the Breaking Capacity of semi enclosed rewirable fuses is 1kA. Why? Surely the wire melts on overcurrent and the higher the overcurrent the quicker it melts. Given the thickness of the ceramic enclosing the fuse I can't see how it could crack or cause any hazard - and it must break the current regardless. Surely this is a case of 'you cannie change the laws of physics captain'! Any thoughts would be appreciated!