Question: what is the difference between a 3 and 13 amp fuse?
Answer: The purpose of the fuse within a BS1363 plug is to protect the cable. The correct size of the fuse is ultimately dependant on the current rating of the cable. ... For an appliance rated as 700W or less, a 3A fuse should be fitted. For appliances above 700W, a 13A fuse should be fitted.