0278.250V

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Fuses

Fuses are designed to protect electrical circuits from dangerous levels of excess current. The melting of the fuse material is what activates the protective action of the fuse, and the temperature of the fuse material is what indicates the amount of current that will cause the fuse to melt. 0278.250V fuse is one of the common fuses and it possesses its own unique application field and working principles.

Application Field of 0278.250V Fuse

0278.250V fuse has many application fields, such as household appliances protection, motor protection, lighting, or generally controlling the power supply. In industry, it is widely used in the circuit of power equipment, communication, electronic equipment, AC/DC equipment, etc. This type of fuses are also widely used in power transmission and distribution, electric energy saving, and other various applications.

Working Principle of 0278.250V Fuse

0278.250V fuse works by means of a conductive element inside the fuse. The conductive element has a melting point that indicates the current level at which the fuse will fail. When the ambient temperature exceeds the specified current level, the conductive element will melt, opening the fuse and disconnecting the circuit.

The 0278.250V fuse is a thermal/time-lag fuse which means that when current values reached their maximum, the fuse takes some time to react before it trips. This time-lag reaction enables the fuse to manage higher overcurrent peaks. The melt-wire alloy of this type of fuses is an alloy comprising mostly of two different metals, nickel and chromium, and a metal oxide. The two metals provide the positive temperature coefficient characteristics. When the current reaches a certain value, the material of the fuses will be heated, and the temperature will rise until the material will melt and force the contacts of the fuse apart.

Conclusion

The 0278.250V Fuse has wide application fields and works by means of a conductive element which has a melting point that indicates the current level at which the fuse will fail. When the ambient temperature exceeds the specified current level, the conductive element will melt, opening the fuse and disconnecting the circuit. Thus it can be highly versatile and dependable when it comes to safeguarding materials from harmful over currents and protecting the circuits from damage or disturbances.

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