Review on UCTRONICS Values Fast Blow Assorted Plastic by Eric Kim

This was a good selection of fuses to match the socket and fuse holder I bought. The fuse ratings were well labeled on the box. I had trouble reading the ratings on the fuses themselves and I didn't see any safety ratings on the box or on the fuses themselves. So how do you know if the backups are working predictably and securely? At one time European fuses were rated not to blow below 200% of their rating and UL fuses had to blow at 135% of their rating. So the size of the fuse is quite complicated. Let's hope that in times of globalization the world will come to more uniform standards.