New material for fusible elements of low voltage fuses

The present technology of production of fuses in Slovenian firm ETI Elektroelement d.d and the action thereof are adapted to the existing ecologically harmful low melting alloy of tin and cadmium SnCd20, which ought to be replaced by one or more ecologically safe alloys with technological and application properties as similar as possible to the existing ones. We have found that the stated problems can be successfully solved by the low melting alloy of tin, bismuth and antimony named ETI-Sn-Bi-Sb, which is ecologically safe, and by its technical and physical properties corresponds to the requirements of the use for fusible elements of low voltage fuses. The low melting alloy ETI-Sn-Bi-Sb containing from 4,0% to 17,0% by weight of bismuth and from 1,0% to 3,0% by weight of antimony, the rest being tin. The above-disclosed low melting alloy is produced in the form of definite or infinite wire of a round or square longitudinal section of dimensions (diameter or side length) from 0,5mm to 3,0mm.