A low - voltage high-power fuse comprising a fuse link status indicator, whose desired characteristic of activation is realized using the fuse link of the adequate shape, made of, as a rule, a copper strip of appropriate thickness and shape, the fuse links being placed in silica sand (3.2) inside the space of the housing mantle of the fuse (1.1), whose cross section shape may be, by choice, square (rectangle, quadrate) or round to oval in shape, and on both of whose sides the are, using screws (1.3), fixed covers (1.2) of the fuse housing, through which pass connecting elements (1.4), wherewith a closed space is created inside which, out of environmental influences, the fuse link acts (3.1) of the fuse as well as the indicating melting wire (3.3), whereat the assembly of the indicator for the fuse links cartridge of low-voltage high-power fuse comprises of an adequately shaped movable part which is located in the channel (3.8) for the indicator lamella, which is made in the housing mantle wall (1.1) of the fuse, so that the movable part of the indicator assembly moves between the two outermost, starting and final positions, and to which in a specific way the created force acts in the direction of displacing the movable part from the starting to the final position, whose shifting is physically prevented by the indicating melting wire (3.3), fixed to the fuse housing covers, lower (1.2d) and upper (1.2g) one, and at the same time is tense in front of the upper front edge(3. 1) of the movable part and electrically connected in parallel to the fuse link (3.1) of the fuse, this state lasting till the occurrence of the blowing out of the fuse link (3.1) of the fuse and thereby the indicating melting wire (3.3) itself, and hereby the physical obstacle to move the movable part into its final position disappears, which is characterized by the compressive spring (4.1) located in the lower part of the channel (3.8) of the indicator lamella (2.1), pressing with one of its ends leaned against the lower cover (1.2d) of the fuse housing and with its other end leaning against the lower front edge (3.10) of the indicator lamella (2.1), thereby, acting on it with the required displacement force F P (3.9), tending to move the indicator lamella (1.2) from the starting to the final position, its length being h L, shaped so that its lower front edge (3.10), against which the compressive spring (4.1) is leaning with one of its ends, always, hence, both in the starting and also in the final position, finds itself below the lower edge (3. 3) of the indicator opening (1.6) in the frontal part of the front wall (3.6) of the housing/mantle (1.1) of the fuse, whereat the indicator lamella (2.1) is designed so that at the appropriate place through its whole thickness d L (5.1) a breach (4.2) is made, which is, relatively to the shape, size and location of the indicator opening (1.6) in the frontal part of the front wall (3.6) of the housing/mantle (1.1) of the fuse, of such shape and size and so located on the indicator lamella (2.1), that in the final position of the indicator lamella (2.1) such coincidence of the breach (4.2) and the indicator opening is obtained (1.6), so that, through the indicator opening (1.6) in the fuse mantel wall, not a single part of the indicator lamella surface be visible (2.1), nor any part of the compressive spring (4.1);