infared sauna indoor Supply chain_mini cooper fuse box factory

20 2024-09

　　Plug-in fuse

　　Plug in fuses play an important role in circuit protection.

　　Structurally, a plug-in fuse typically has a plastic casing that contains a meltable metal sheet inside. This design allows it to be easily inserted into the corresponding fuse holder, making installation and replacement relatively convenient. The outer shell not only serves to protect the internal metal sheet, but also to some extent prevents the risk of electric shock to the user.

　　The working principle is based on the heat generated when current passes through a metal sheet. When the current in the circuit exceeds the rated current of the plug-in fuse, the metal sheet will quickly heat up. When the temperature reaches the melting temperature of the metal sheet, the metal sheet will melt, thereby cutting off the circuit. This circuit breaker mechanism can effectively protect electrical components in the circuit from damage caused by excessive current.

　　Plug in fuses are widely used in the automotive industry. The electrical system of a car contains many different circuit branches, from the engine control system to various electrical devices inside the car, such as radios, air conditioning, etc. Each circuit branch requires corresponding protective measures. Plug in fuses have become an indispensable protective component in automotive electrical systems due to their ease of installation, replacement, and reliable performance.

　　However, plug-in fuses also have some shortcomings. For example, in some high vibration environments, the plug-in fuse may become loose or have poor contact from the fuse holder, which may affect its normal protective function. In addition, compared with patch fuses and micro fuses, plug-in fuses have a relatively larger volume and may not be suitable in some situations where space requirements are very strict.