Self-recovery fuse is made by mixing polymer organic polymer with conductive granular material under high pressure and high temperature vulcanization reaction and processing by special process. Compared with the traditional fuse, it can only be used once. Self-recovery fuse has overheat and overcurrent maintenance and active recovery functions. The following mainly introduces the interpretation of "symbol" of self-recovery fuse.

Self-recovery fuse "symbol" description.
(1) the maximum operating current of Ih self-recovery fuse element at the ambient temperature of IH 25 degrees Celsius;
(2) The inimum starting current of the 2)It self-recovery fuse at the ambient temperature of 25 degrees Celsius;
(3)Imax self-recovery fuse can accept the maximum current;
(4) Consumption effect of 4)Pdmax self-recovery fuse element in working condition;
(5) The maximum operating voltage of 5)Vmax self-recovery fuse element;
(6) Voltage of 6)Vmaxi self-recovery fuse element in blocked state;
(7) Initial inimum resistance of 7)Rmin self-recovery fuse element before operation;
(8) Initial maximum resistance of 8)Rmaxi self-recovery fuse element before operation;