Classification and selection of ceramic tube fuses

Fuse is a common safety device in our life, which can prevent the circuit from short-circuiting due to its own high load, resulting in potential safety hazards. Ceramic tube fuse is a kind of fuse which uses ceramic tube as fuse shell, and it is a very common fuse. At present, there are many kinds of ceramic tube fuses on the market.

Classification of ceramic tube fuses

Ceramic tube fuses can be divided into four categories according to the scope of use: power fuse, machine tool fuse, electrical instrument fuse and automobile fuse, and can be divided into micro, small, medium and large fuses according to the volume. According to the breaking capacity, it can be divided into high and low breaking capacity fuses, and according to the fusing speed, it can be divided into ultra-slow, slow, medium, medium, fast and ultra-fast fuses. Generally speaking, the three main brands that make ceramic tube fuses in our daily life are Ming Sheng, Jianxing and Howard.

Selection of ceramic tube fuse

In order to ensure the fuse can work smoothly and protect the safety of the circuit, we often need to determine many parameters of the fuse to choose. First of all, we must determine the safety signs of fuses and choose the safety certification standards of fuse tubes according to the requirements of market sales. Second, determine the shape and size of the fuse. The shape and size of the fuse are mainly selected according to the installation space and the determined safety certification mark. Thirdly, to determine the type of fuse, the most suitable circuit type should be selected according to the current characteristics of the protection circuit itself. For example, if the current of the protection circuit is constant, it is necessary to choose a fast fuse.

Fourth, determine the rated voltage, and then select the fuse product that is most suitable for the circuit according to the input voltage and use requirements of the protection circuit. If the input voltage of the protection circuit is 220V, fuse products with voltage above 220V should be selected; Fifth, determine the minimum rated current. If the stable working current of the protection circuit is 1A, UL standard delay fuse tube should be selected. Sixth, determine the minimum l2T of fuse tube. If the surge l2T of the protection circuit is 1, the l2T of the fuse should be about 0.5 in order to ensure that the fuse can withstand more than 654.38+10,000 shocks. Seventh, determine the rated current of the fuse tube, according to the minimum rated current and the minimum l2T value, look up the corresponding specifications in the product catalog, and take the primary rated current which is greater than the minimum rated current and the l2T value is also greater than the minimum l2T value as the rated current of the fuse.

Introduction of Ceramic Tube Fuse Manufacturers

Dongguan Weixun Electronics Co., Ltd. is a comprehensive manufacturing enterprise specializing in the production and sales of R&D, fuse holders, fuse clips, fuse holders, fuse boxes, fuse covers, fuse caps and protection circuit components. It is the designated processing factory in China by American Littelfuse and former German Wickmann.

The company has introduced advanced production equipment, technological process and management mode, such as foreign advanced computer-aided design system, large-scale CNC machining center, first-class CNC punching machine and automatic plastic molding, and has a large number of experienced professional designers, engineers, technicians and more than ten years of professional experience.

Over the years, the company has been adhering to the service tenet of "quality first, punctuality and efficiency, excellent service and zero tolerance". With more than ten years of industry experience and professional reputation, we have won the trust and support of domestic and foreign customers and become a fixed partner of many manufacturers.

Dongguan angusi electronics co., ltd

Angus specializes in producing and selling fuse holders, automotive fuse holders, waterproof fuse holders, glass fuses, ceramic fuses, fuse clips, automotive appliances, fuse holders with wires, current fuse tubes, miniature fuses, automotive fuse sheets, wire harness processing and other insurance components. It is a modern production enterprise integrating R&D, production and sales, and its products are fully managed from raw materials, finished products, marketing and service.

product application

The products are widely used for thermal protection of power suppliers, switching power supplies, chargers, computers, automobiles, transformers, computers, telephones, household appliances, communication products, lighting products, toys, various instruments, electronic connecting wires, British plugs, motor products, IT, consumer electronics, battery motor products and various small household appliances, and are indispensable safety accessories for electrical products.

Service tenet

The company's aim is to innovate constantly to make customers' products more secure, safer, more convenient and faster. Customer satisfaction is our eternal pursuit.

The company firmly believes that only stable quality and technological upgrading are the main keys to the sustainable development and success of enterprises.

Although the ceramic tube fuse is only a simple fuse device, it is related to the safety of electricity consumption in our life. Therefore, when purchasing fuses, we should completely follow the above selection criteria.

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