There is no-where for a fuse on the body of this thing, which I thought was a requirement of the ring circuit system?
Actually there is a fuse, but it's inside, in the form of a PCB mounted fuse and/or fusible resistor. It would be just an added cost to include the usual 3A clip in fuse in the plug; anything that makes a fuse blow in a switchmode power supply means a chain reaction of dead semiconductors, which just replacing a fuse won't fix. The other thing is that the plug itself is not detachable and rewireable so would not be used with any other appliance.
