Sefuse Thermal Fuse It is a temperature sensing circuit cut-off device. Thermal fuse can sense the overheating generated during abnormal operation of electrical and electronic products, thereby cutting off the circuit to avoid fire. Commonly used: electric hair dryer, electric iron, rice cooker,...
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Sefuse Thermal Fuse
It is a temperature sensing circuit cut-off device. Thermal fuse can sense the overheating generated during abnormal operation of electrical and electronic products, thereby cutting off the circuit to avoid fire. Commonly used: electric hair dryer, electric iron, rice cooker, electric stove, transformer, electric motor, water dispenser, coffee maker, etc. The thermal fuse cannot be used again after it is operated, and it only works once at the melting temperature.
The fuse is mainly composed of three parts: melt, housing and support. The melt is the key element to control the fusing characteristics. The material, size and shape of the melt determine the fusing characteristics. Melt materials are divided into two types: low melting point and high melting point.
Low melting point materials such as lead and lead alloys have a low melting point and are easy to fuse. Due to their large resistivity, the cross-sectional size of the melt is large, and more metal vapors are produced during fuse. It is only suitable for low breaking capacity Device. High melting point materials such as copper and silver have high melting points and are not easy to fuse, but due to their low resistivity, they can be made into a smaller cross-sectional size than low melting point melts, and produce less metal vapor during fuse, suitable for high breaking Capable fuse. The shape of the melt is divided into two types: filament and ribbon. Changing the shape of the variable cross-section can significantly change the fusing characteristics of the fuse.
The thermal fuse has the function of detecting abnormal temperature and cutting off the circuit. It can detect the abnormal temperature rise of household or industrial electrical products and cut off the circuit quickly and in time, which can achieve the effect of preventing fires from unburned. After the old fuse is blown, a new fuse needs to be replaced manually to restore the circuit to operation.
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