The function of the fuse in the circuit includes two aspects: when the circuit fails and generates overcurrent, it should be able to operate within the specified time range to protect the circuit and personal safety; at the same time, when there is a non-fault instantaneous overcurrent in the circuit It cannot act arbitrarily to ensure that the circuit continues to work normally. These functions are realized by selecting the appropriate fusing characteristics of the fuse and the appropriate rated current specification, and the basis for selection is the technical information provided by the fuse manufacturer. Including "time-current characteristic curve" and "time-energy characteristic curve", etc.
The fusing characteristics and rated current of the fuse are just a name, which cannot truly reflect its actual fusing current, fusing time and melting heat. There are certain differences among different brands of products. Brand may be slightly faster than brand B, but it will definitely be slower than brand A's own fast-acting products; although there are some basic consensus in the industry, there are also recognized standards, but the data range of these standards is quite wide, like the above-mentioned A Brand products are relatively lower limit in the standard requirements, while B brand products are more biased towards the upper limit, both can meet the standard requirements, but after all, there are still some differences between the two, so when we replace the fuse, in addition to In addition to confirming that the rated current is the same, it is best to identify the difference between the two through the characteristic curve, so as to avoid mistakes or losses caused by performance differences.
Simple and direct replacement may result in insufficient protection performance or abnormal fusing of the fuse and the result that the whole machine cannot work, and the latter is more likely to occur.
Contact Person: Mr. CK Loh
Tel: +86 188 139 15908
Fax: 86--755-28397356
