![]() The thermal fuse shell is marked with the rated temperature value and the rated current value, it is not difficult to identify, and it is very convenient to use. Thermal fuse has the characteristics of accurate melting temperature, high withstand voltage, small size and low cost. It must have good electrical conductivity, should not produce obvious installation contact resistance third is the bracket part, the melt of the fuse is generally slender and soft, the function of the bracket is to fix the melt and make the three parts a rigid whole for easy installation and use, It must have good mechanical strength, insulation, heat resistance, and flame resistance, and should not be broken, deformed, burned, or short-circuited during use.Īccording to the material: it can be divided into the metal shell, plastic shell, oxide film shellĪccording to temperature: it can be divided into 73 degrees 99 degrees 77 degrees 94 degrees 113 degrees 121 degrees 133 degrees 142 degrees 157 degrees 172 degrees 192 degrees. It is an important part of the connection between the melt and the circuit. The second is the electrode part, usually two. Household fuses are usually made of lead-antimony alloys. The most important thing is to have the same fusing characteristics. It should be as small as possible and consistent. The melt of the same type and specification of the fuse must have the same material, the same geometric size, and the resistance value. Generally, a fuse is composed of three parts: one is the melted part, which is the core of the fuse, which cuts off the current when it is blown. This is different from a fused fuse, which is blown by the heat generated when the current exceeds the rated current in the circuit. It will fuse and cut off the power circuit only when the electrical appliance fails to produce abnormal temperatures. If it does not exceed its rated value during use, it will not fuse and will not have any effect on the circuit. It usually only serves as a powerful path in the circuit. The thermal fuse is the same as the fuse we are familiar with. Once the electrical appliance fails and generates heat, when the temperature exceeds the abnormal temperature, the thermal fuse will automatically fuse to cut off the power supply to prevent the electrical appliance from causing a fire. This kind of element is usually installed in heat-prone electrical appliances. Ⅷ Some Frequently Asked Questions about Thermal FuseĪ thermal fuse is a new type of electrical overheating protection element. ![]() Ⅳ What are the characteristics of the Thermal Fuse?
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