Hello,
For what do you need to know a level of emi? Properly electromagnetic field is concentrated in transformer core. There is a directive of electromagnetic compatibility for electric and electronic devices and installation rules which manufacturers recommend to use when you arrange an...
Hello,
If you mean a device to control burning out of fuse link that there are manufactures which produce it for LV fuses.
For understanding of fuses interrupting characteristics you can see IEC standards (IEC 60269). There are gG and aM modification for power line and motor protection.
