How does one select the voltage rating?
Fuse links are voltage sensitive devices and it is important to note that the satisfactory operation of a fuse link under fault conditions is dependent on the system voltage. They must not therefore be installed in circuits above their voltage rating. They can however be used satisfactorily in circuits at lower voltage levels. For example, to protect a 10 kV system a 12 kV or 24 kV MV-fuse link can be used, but not a 7,2 kV MV-fuse link.
