Model and specifications of fuses

　　The model and specifications of fuses are important reference for selecting and using fuses. The following are common fuse models and specifications:

　　1. Rated current: This is one of the most important parameters of a fuse, indicating the maximum allowable current of the fuse under normal operating conditions. When selecting a fuse, the rated current should be slightly greater than the maximum operating current of the circuit.

　　2. Rated voltage: Refers to the maximum allowable voltage of the fuse under normal operating conditions. If the voltage in the circuit exceeds the rated voltage of the fuse, the fuse may not function properly.

　　3. Breaking ability: This measures the ability of a fuse to cut off current in the event of a short circuit. The breaking capacity is usually expressed in amperes or kiloamperes, and the choice needs to be determined based on the actual needs of the circuit.

　　4. Resistance: Although the main function of a fuse is to protect the circuit, it also has a certain degree of resistance. When choosing fuses, it is advisable to choose models with lower resistance to reduce energy loss in the circuit.

　　5. Response time: For some highly sensitive circuits, the response time of fuses is also an important parameter. A fast response fuse can cut off the current in the event of an abnormality in the circuit, providing more timely protection.

　　In short, choosing the appropriate fuse model and specifications can not only effectively protect the circuit, but also improve the reliability and safety of the entire system. In practical applications, various factors should be comprehensively considered based on specific needs to select the most suitable fuse product.

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