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Fuses

Fuses are commonly used in electrical system installations to protect electrical circuits, components and people. The GMD-1.25A is a very common type of fuse, and understanding its application field and working principle are essential to making correct applications and ensuring the safety of electrical systems in which it is used.

Application Field

The GMD-1.25A fuse is primarily used in DC circuits, such as those in automobiles, airplanes, and power supplies. It is most commonly used as a circuit breaker, providing protection against short circuits and overloads. This fuse is rated for up to 125V, and its maximum current rating is 1.25A. Due to its low current rating, it is suitable for small-scale and limited- power applications.

Working Principle

The working principle of the GMD-1.25A fuse is straightforward and relatively simple. The fuse consists of a metal strip that melts when a certain amount of current passes through it. This current, or amperage, is measured using the fuse’s rating as a reference. If the current passing through the fuse exceeds its rated amperage, it generates heat and melts the metal strip, thus breaking the circuit and preventing further current from passing through.

Along with the metal strip, the fuse is also equipped with a spring-loaded lever that can be used to reset the fuse after it has been tripped. This lever forces the fuse to return to its original position, allowing electricity to flow through it again.

Conclusion

The GMD-1.25A fuse is an important safety device used in a wide variety of electrical systems. Its application field and working principle are essential for engineers and technicians when it comes to recommending suitable fuses and avoiding electrical accidents.

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