42513000101

Fuses, as an important safety control item, are widely used in the production, distribution and utilization of electrical energy. Its working principle is not complicated. Fuse has a number of varieties, among which 42513000101 fuses are one of the most commonly used fuses. This paper will explain the application field and working principle of 42513000101 fuses.

42513000101 fuses are termed class I of fuses, which have a rated current of 13A and consist mainly of fused tube and connecting part. Its characteristics of anti-overload and short-circuit protection make it applicable to family lighting, store and office equipment, machine tools, electric drill, circular saw, electric grinder, electric soldering iron, transformer and motor. Moreover, its size is fixed and reasonable and its weight is light, so the work of installation and maintenance is convenient and fast.

Although the appearance of 42513000101 fuses is simple, it has the function of protecting the circuit from short circuit and overload. The working principle of the fuse is that when the current passing through the circuit exceeds the rating current of the fuse, the internal resistance of the fuse will be reduced due to excessive heat release, thus the current passing through the fuse will gradually increase. At this time, the fuse will be destroyed firmly so as to disconnect the circuit and protect the circuit effectively.

The working principle of the fuse works as follows: When the current passing through the fuse is less than the rated current of the fuse, the fuse can operate safely, and the fuse wire is only heated slightly by the current; but when the current increases to the rating current of the fuse or the current over the rating current passes through the fuse, the heating and melting of the wire become very serious, and the internal resistance of the fuse decreases, which causes the current to increase continuously. When the fuse wire temperature reaches about 197℃, it will be melted quickly. In this way, the fuse has played the role of protecting the circuit. When the overload or short circuit occurs in the circuit, the fuse instantly breaks to disconnect the circuit, thus ensuring the safety of the circuit and equipment.

To sum up, 42513000101 fuses, as the most widely used product among the many fuses, have a wide range of applications and stable performance. The working principle of the fuse is not complicated and its protection to the circuit is timely and effective. Therefore, we must pay attention to the protection and maintenance of the fuse when using it.