There are two types of fuse boxes: ordinary current fuse boxes and car fuse boxes. Automobile fuse box is a relatively common type of current circuit protection device. Its function is to provide a sheath insulation device for the fuse. When the circuit current abnormally exceeds its rated current, the fuse will blow and will not burn out other circuit components. . Automobile fuse boxes are often used in over-current protection components of automotive circuits, and are widely used in over-current protection of industrial equipment. There are many electrical equipment in the car circuit that are connected by wires of different colors. Among them, it is hard to ignore the fuse and the fuse box.
   According to the specifications and models, car fuse boxes have (suitable for insert models): small insert fuse boxes, medium insert fuse boxes, and large insert fuse boxes. The three are very commonly used. The choice of the fuse box should be based on the actual situation, mainly depending on the installation size, the size, shape and performance of the suitable fuse tube.
When the car is in use, if electrical equipment does not work, it may be caused by the burning of the fuse or fuse box. How to replace it:
    1. Turn off the ignition switch and open the fuse box cover.
    2. Check the replacement fuse or fuse box. 
Precautions:
(1) Replace according to the rated current value marked on the fuse box cover. A fuse box with a higher rated current cannot be used.  

(2) If the new fuse box is burned out immediately, the surface circuit system may be faulty and needs to be repaired.  

(3) In emergency situations where there is no spare fuse box, the fuse box on other equipment that does not affect driving and safety can be replaced. At the same time, for the sake of safety, the inspection and replacement of automobile fuse boxes must find professional automobile fuse suppliers.
80% of automobile circuit failures are caused by fuse box or fuse failure, and 80% of spontaneous combustion events are also caused by poor protection measures of automobile fuse box.