1. Rated current: The nominal working current of the fuse tube (the maximum current that a fuse can maintain normal operation for a long time under normal conditions).
2. Rated voltage: The nominal working voltage of a fuse (the maximum voltage that the fuse can safely withstand at the moment of disconnection). When selecting a fuse, the rated voltage of the selected fuse should be greater than the input voltage of the protected circuit.
3. Breaking capacity: When a large overload current (such as a strong short circuit) occurs in a circuit, the fuse can safely cut off (break) the maximum current of the circuit. It is a safety indicator for fuses. Safe breaking refers to the phenomenon of avoiding splashing, burning, explosion, and other hazards to surrounding components, components, and even personal safety in the breaking circuit.
4. Overload capacity (carrying capacity): The maximum overload current that a fuse can maintain for a specified period of time. When the current flowing through the fuse exceeds the rated current, the melt temperature will gradually increase after a period of time until it is finally blown.
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