Its the same cartridge that is on this site, black with the two red dots. The wholesaler that I bought the wire from said they didn't have them, I think I 'll try B&Q.
a 30amp fuse wire has blown and the cartridge that holds the wire has snapped in two due to my own carelessness. I have bought new fuse wire but I need a new cartridge. Where can I buy the cartridge from? Please help