RMK Pat Testing, West Sussex

01444 616206

What Are the Correct Ratings of Plug Fuses

Manufacturers standardised on two plug fuse ratings- 3 Amp (red in colour) and 13 Amp (brown in colour)

  • A 3A fuse is used for appliances that use up to 700 watts
  • A 13A fuse is used for appliances that use in excess of 700 watts
  • In addition there are a number of other fuse ratings (1A, 2A, 5A, 7A, 10A) are available

Why Use Fuses?

Most European plugs are not fused. Apart from AC Adaptors all plugs in the UK are fused.

A fuse is primarily used is to protect the user from shocks if the lead is damaged, an additional benefit is that it also protects the appliance

The fuse in the plug protects against faults in the flex and can allow the use of a more flexible cable.

This is advantageous for such appliances as electric blankets, soldering irons and Christmas tree lights, where the flexibility of a small flexible cable is desirable.

With some loads it is normal to use a slightly higher rated fuse than the normal operating current to allow for power surges when the appliance is turned on, until the appliance gets up to operating temperature.

PAT Tests and Fuses

It is standard practice as part of the Portable Appliance Test (PAT Test) there is a visual test to check that the correct fuses is used according to the manufacturers specification.

Blown fuses will be identified as part of the run test of the Portable Appliance Test (PAT Testing), to ensure the portable appliance is functioning and not inoperative. Please note the run test is not a test of competency, just purely a test of electrical operation.

RMK will replace free of charge any blown or incorrectly rated fuses

Want to know more about PAT Testing and electrical safety – talk to a PAT Testing expert today and learn more about our Portable Appliance Testing Services, contact us on 01444 616206 or via email at enquiries@rmk-pat.co.uk