If the problem should occur with a World Adapter or Country Adapter for Switzerland and the UK, it is simple to change the fuse.
Spare fuses can be purchased at electronic retailers and many online stores. To replace the fuse, take a screwdriver or a coin, place it in the slot found on the bottom of the device and lightly turn it anti-clockwise. Remove the old fuse and place a fuse of the same size into the holder, then fix it back into the device. (Please note: The UK version features a flip closure that is simple to open with a screwdriver.)
World Adapters of the series Classic, EVO, MUV:
- Slow Blow Microfuse T (Glass or Ceramic) 2.5 A – 250 V AC, 5 x 20 mm
World Adapters of the series PRO:
- Version 1: Slow Blow Microfuse T (Glass or Ceramic) 6.3 A – 250 V AC, 5 x 20 mm
- Version 2: Slow Blow Microfuse T (Glass or Ceramic) 7.0 A – 250 V AC, 6 x 25 mm (British Standard)
- Version 3: Slow Blow Microfuse T (Glass or Ceramic) 10.0 A – 250 V AC, 5 x 20 mm
Country Adapters Switzerland:
- Slow Blow Microfuse T (Glass or Ceramic) 10 A – 250 V AC, 5 x 20 mm
Country Adapters UK:
- Version 1: Slow Blow Microfuse (Glass or Ceramic) T 13 A – 250 V AC, 6.4 x 25.4 mm
- Version 2: Slow Blow Microfuse (Glass or Ceramic) T 7 A – 250 V AC, 6.4 x 25.4 mm
Note: If you are not sure which fuse your adapter contains, look at the labeling on the back of the adapter.
The advantage of the “Slow Blow (T) Fuse” is that the fuse does not react immediately when the tripping current is reached, melts and deactivates the adapter, but reacts with a short delay – which makes sense for the convenient operation of the product.
How to change the fuse
PRO Series, MUV Series, UK and Switzerland country adapters

Step 1
Turn the adapter around, place a coin in the slot of the fuse cover and turn it anticlockwise (approx 45º) with gentle pressure until it becomes loose.

Step 2
To remove the fuse cover in a Country Travel Adapter for UK socket standards, please use a screwdriver instead of a coin to open the flip closure.

Step 3
Remove the fuse cover, including the fuse, from the adapter.

Step 4
Remove the blown fuse from the holder and replace it with a new one. More information on the appropriate fuse types can be found above.

Step 5
Now put the new fuse in the holder back into the adapter. Close it again with the coin by turning it clockwise (approx. 45°). For UK Country Travel Adapters, simply snap the fuse cover back into place. Now the adapter is ready-to-use again!