This system of Neo D-fuse-links is proper to protect cables and electrial wires at a rated voltage of 380V AC and 250V DC.The fusing-indicators,in several colors,allow to show both the rating and the fusion of the cartridge.
A suitable gauge must be inserted in the base and the whole device is blocked by means of the screw cap.In this way we have got a non-interrhangeability of the fuselinks with others of different currents.