BKL2-S505-V-5-R

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Fuses are an important application field of electrical engineering. They are indispensable components for the safe operation and control of electrical systems. One particular fuse that is widely used in the industry, is the BKL2-S505-V-5-R. In this article, we’ll look at the application fields and working principle of this particular fuse.

Application Fields

The BKL2-S505-V-5-R fuse is a defining element in high-voltage and medium-voltage applications. Its main area of use are AC applications, such as distribution networks, substations and power transmission systems. It also finds its use in some applications like:

• Transformers
• Switches
• Isolators
• Rectifiers

The BKL2-S505-V-5-R is also applied in demanding industrial AC-DC circuits, such as motors, generators, turbines and many other. Unlike other fuses, it is compliant with the IEC 6100 standards and it is highly resistant to humidity and extremes temperatures.

Working Principle

This fuse works operating an electric arc to interrupt an overcurrent. Unlike conventional technologies, the BKL2-S505-V-5-R incorporates an Arc Disruption Mode (ADM), making it possible to control the arc which consists of a variable current up to 80A. As soon as the arc current drops below 20A, the operating current is interrupted and the fuse is removed from the circuit.

The BKL2-S505-V-5-R has incredible stability and control over its operating time. It uses a thermal-magnetic action, which increases when the current flows through it, producing two different levels of millisecond’s time delay. The first level is produced the moment the current reaches a predetermined value, then the second level starts and the time non-operation current increases proportionally. This action, combined with the arc disruption mode (which happens within the unit), guarantees a lower number of false trip and an increase in product life.

This is the main working principle of BKL2-S505-V-5-R fuse. It is precise, safe and reliable, which is why it is one of the most popular fuses in the industrial field.

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