What is maximum wattage for 13 amp fuse?

The maximum wattage for a 13 amp fuse can be calculated using the formula: wattage (W) = voltage (V) × current (I). In the UK, where the standard voltage is 230 volts, the maximum wattage for a 13 amp fuse would be 230V × 13A = 2990 watts. However, for safety reasons, it is generally recommended to use devices that draw no more than 3000 watts on a 13 amp fuse.