What material are the fuses made of?
Fuse supplier tell you that the fuse is a metal wire material, which is mainly made of gold wire and other low melting points combined with finance. When the circuit fails abnormally, the current will continue to rise at this time. During the rising process, the current will damage the circuit, and even cause a fire.
Main function of the fuse
If fuse is installed in the circuit, when the current problem is abnormal and has reached a certain height and heat, the fuse can fuse itself to cut off the current, which protects the circuit and operates safely.
Fuse Type
Fuse suppliers will analyze for you. Common fuses are generally classified and divided according to eight dimensions of protection form, scope of use, size, rated voltage, interrupting capacity, appearance, fusing speed, and international standards.
How fuse works
When the current passes through the conductor, the conductor will heat up because the conductor has a certain resistance. After the material and shape of the fuse are determined, its resistance is determined. When the current flows through it, it will heat up. The increase of the heat will also increase. The size of the current and resistance determines the rate of heat generation. The structure of the fuse and its installation condition determine the rate of heat consumption. If the rate of heat generation is less than the rate of heat dissipation, the fuse will not will fuse.
Fuse suppliers tell you the difference between fuses and circuit breakers
(1) Circuit breakers and fuses are both active components, but circuit breakers can achieve line overload protection and short circuit protection, while fuses (fuses) generally can only achieve short circuit protection.
(2) Compared with circuit breakers, fuses have high short-circuit protection breaking capacity. When the breaking capacity of the circuit breaker is insufficient, a fuse can be connected in front to achieve backup protection.
(3) From the perspective of short-circuit protection, a circuit breaker with a three-stage LSI protection release (L parameter for overload long-time delay protection, S parameter for short-circuit short-time delay protection, and I parameter for short-circuit instantaneous protection) can realize the connection between the upper and lower lines. Full protection selectivity, while fuses and circuit breakers with two-stage LI protection only achieve partial selectivity.