The fuse protects the device from over current. It is designed to ‘blow’ and cut off the electricity when the current exceeds its rated capacity. It is important to ensure the correct fuse is used for the appliance. As a general guide 3 amp fuses are used in equipment up to 700 watts (W). For equipment with a rating greater than 700 watts (W) a 13-amp fuse will be required. Some equipment requires a 5 amp fuse e.g. some televisions and, other equipment like some printers require 10 amp fuses. Always read the manufacturer’s instructions.