ICP-S1.8TN Circuit Protection

Fuses are used as an important type of common electrical components in various electrical equipment. For example, it is mainly used in the circuit of electric equipment and control system of protection system components. In the form of electric energy protection, its role is mainly to disconnect the electrical circuit quickly when a certain electrical parameter exceeds the preset value, to achieve the purpose of eliminating the fault, and then to ensure the safety of personnel and equipment.

The ICP-S1.8TN is a type of fuse used in automobiles, and its application fields and working principles, are discussed in this article.

Application Fields of ICP-S1.8TN Fuse

The ICP-S1.8TN is a 13mm×30mm physical size of automobile fuse, a referred-type blade fuse and mostly used in automotive electrical circuits or electronic circuits with a current ranging from 0-18A. It is suitable for (100A and below) circuits of DC12-48V cars of various brands, including cars and vans from Japanese, European, American and other countries. For example, it can be used in the circuit system of in small bus or mid-bus, SUVs, luxury cars, electric vehicles, ships, automobiles and heavy vehicles.

It’s easy to install and operate. Its small size can be used in various places and various electrical circuits, such as the illumination, electric sound, cigarette lighter, electric clock, rear window switch, air conditioner, power window, airbag, wiper, etc. It can also be used in the start circuit of the vehicle.

Working Principle of ICP-S1.8TN Fuse

Like other fuses, the ICP-S1.8TN works by limiting the maximum current the circuit can draw from the power supply while allowing normal current to flow. It is designed to be a sacrificial device that melts and interrupts the circuit if an overload occurs. When current flows through the fuse wire, heat is generated. If the heat generated is highest than the melting point of the fuse wire, the wire will melt, breaking the connection, preventing any further current flow.

The ICP-S1.8TN fuse consists of an insulated polycarbonate body, a metal ring, and a fuse element inside. The fuse element can be made of silver alloyed nickel wires. The metal ring forms an electrically broken connection between the pins when the fuse element fails. When an overload or a short circuit occurs, the fuse element will melt. This will cause an interruption of the electrical circuit, thus protecting the circuit.

Conclusion

The application fields and working principle of the ICP-S1.8TN fuse has been discussed in this article. ICP-S1.8TN fuses are generally used in DC12-48V circuits in automobiles or other electronic appliances. It can be used in circuits for illumination, electric sound, cigarette lighter, electric clock, rear window switch, air conditioner, power window, airbag, wiper, etc. It works by limiting the maximum current the circuit can draw from the power supply while allowing normal current to flow. If the heat generated is highest than the melting point of the fuse wire, the wire will melt, breaking the connection, preventing any further current flow.