BK/ATC-20

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Fuses are electrical protection devices designed and manufactured to limit or protect the system or components from over-current, over-voltage, reverse flow of electric current, or total electrical or power supply failure. BK/ATC-20 fuses are classified as low-voltage fuses and are commonly used for protection in residential, commercial, and light industrial applications. In this article, we will discuss what applications these fuses are used for and the working principle behind them.

Applications of BK/ATC-20 Fuses

BK/ATC-20 fuses are primarily used for residential, commercial, and light industrial applications that require low voltage protection, such as in lighting circuits, refrigeration systems, and HVAC systems. They are also used in motors, pumps, and other motor-driven loads. The fuse can also be used in circuits where the current may fluctuate or drop suddenly. They are designed to protect against overloads, short circuits, and ground faults.

Low voltage applications are applications that require fuses with working voltage of no more than 600V. These fuses are designed for 400V system applications and have a current rating of 20A. They come in two sizes; standard size and miniature size. The type BK/ATC-20 is a dual-element fuse with a time-delay feature so that it can handle temporary overloads. The dual-element feature also provides a greater amount of current protection than is available with a single-element fuse.

Working Principle of BK/ATC-20 Fuses

The BK/ATC-20 fuse has two elements; a glass tube and a metal ring. The glass tube is filled with a fusible alloy material that melts when the current through the fuse is too high. This melting of the fusible element interrupts the flow of current and causes the fuse to blow. The metal ring is located around the outside of the tube and it acts as a safety device. If the fuse does blow, the metal ring will catch any pieces of the melted fusible element, thus preventing them from escaping and causing a fire.

The BK/ATC-20 fuse has a dual-element design. This means that it has two components; a thermal element and an electrical element. The thermal element responds to an increase in current and begins to heat up. As the temperature increases, the electrical element starts to open up. Once the electrical element opens, it interrupts the flow of current and the fuse blows. This time-delay feature helps to protect the circuit from transient overloads.

The BK/ATC-20 fuse is also designed to be reset after it has blown. To reset it, the user needs to remove the old fuse and replace it with a new one. Resetting the fuse after it has blown ensures that the circuit will continue to be protected from overloads and short circuits. This resetting feature also helps to protect the system from potentially dangerous and costly power outages caused by a blown fuse.

Conclusion

In conclusion, BK/ATC-20 fuses are designed for low voltage protection in residential, commercial, and light industrial applications. They are designed to protect against overloads, short circuits, and ground faults. The dual-element design with time-delay feature provides increased protection against sudden transient overloads. The fuse can also be easily reset after it has blown. Therefore, the BK/ATC-20 fuse is ideal for a variety of low voltage applications.

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