Welcome to ECN Cubrilo!

A Serbian electrian - cool! Can you tell us about wiring in YU? Since you ask about "Diazed" I presume you use these?

"Diazed" and "Neozed" is German, but I do not know what the names stand for. However, the Diazed is older and larger. I would guess that "Neo-" was used simply to show that it was new, thus Neozed. Now, what could "Dia-" mean? I would guess at "Diameter" as the diameter of the fuse tip correlates with the fuse rating.