0312.125H

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Fuses are essential components used in electrical systems to protect the system and its components from damage due to excess current. 0312.125H is one of the most commonly used fuses in domestic and industrial applications. This article aims to provide an overview of 0312.125H application field and working principle.

Generally speaking, the 0312.125H fuse is suitable for AC 50/60Hz power supply circuits with rated voltage up to 500V and rated current up to 125A. In particular, it is widely used in high current applications such as motor control, lighting circuit, power distribution, power tool, industrial and agricultural machinery, and other commercial applications. It is also suitable for home use, for example, home appliances, television sets, microwave ovens, air conditioners, etc.

The 0312.125H fuse is composed of a body, a blowout element and a fuse element. The body of the fuse is usually made of a ceramic tube with a threaded end caps to secure the fuse elements. The two fuse elements consist of copper-nickel alloy wire, which is sealed at both ends of the ceramic tube in order to prevent short circuits. The two ends of the wire are connected to the external circuit. The blowout element is usually made of ceramic and is placed between the two fuse elements as an insulator.

The working principle of 0312.125H fuse is relatively simple. When the current passes through the fuse, the fuse element produces heat and expands. When the current reaches a certain overload level, the heat generated by the fuse element will cause the blowout element to rupture, thus cutting off the power supply and protecting the circuit and its components from damage. Thanks to this design, 0312.125H fuse is able to instantly interrupt any current that exceeds the rated current.

In addition, 0312.125H fuse has a feature of electro-optic indicator, which is used to indicate whether the fuse is working or not. Generally, the indicator color of 0312.125H fuse is white when it is in good condition and red when it has been overloaded and is no longer functioning.

To conclude, the 0312.125H fuse has a wide range of applications and is a reliable way to protect electrical circuits and components from short circuit and overload. It is easy to install and has an electro-optic indicator to indicate its working status. Thanks to its simple yet effective design, the 0312.125H fuse is one of the most popular fuses used in domestic and industrial applications.

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