The drop fuse has the advantages of simple structure, low cost and convenient operation. At the same time, its arc extinguishing ability is weak, the breaking capacity is small, and it is not suitable for frequent operation occasions. The fuse tube of the drop fuse shall have a downward inclination angle of 25 ° ± 2 °, so that the fuse tube can fall quickly by its own weight when the melt fuses.

Drop fuses are widely used in the primary side of 10kV distribution lines and distribution transformers for protection and equipment switching and cutting operations. At the same time, it is also used in various fields such as family, commerce, industry, etc. to provide circuit protection for people's life and work.