BK/MDL-V-3-R

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Fuses are an important piece of equipment in any electrical system, providing protection against over-currents. The BK/MDL-V-3-R is a specific type of fuse, known as a voltage-limiting fuse, which helps to protect against electrical overvoltages. This article will discuss the application field and working principle of the BK/MDL-V-3-R fuse.

The BK/MDL-V-3-R fuse is a high-performance voltage-limiting fuse designed for use in low voltage AC power circuits. It is designed to protect against overvoltage and voltage transients caused by lightning strikes, static, or switching arcing. The BK/MDL-V-3-R has a nominal voltage rating of 110 VAC and a maximum peak current rating of 38kA. It is UL Listed and CSA Certified, making it suitable for use in residential and commercial applications.

The working principle of the BK/MDL-V-3-R fuse is based on an electronic internal bridge which, when triggered by a voltage spike, rapidly switches the current from the line to ground. The internal bridge has a threshold voltage, which is the voltage at which the fuse trips. This threshold voltage is dependent on the application and must be calculated for each particular case.

In addition to protection against overvoltages, the BK/MDL-V-3-R provides protection against over-currents. A thermally sensitive element is incorporated into the internal bridge, to protect against currents that exceed the rated current of the fuse. If the maximum current rating of the fuse is exceeded, the thermally sensitive element will behave as a thermal fuse, limiting the current and preventing damage to the internal components.

The BK/MDL-V-3-R fuse is used in a wide range of applications, including residential and commercial electrical systems, motor circuits, electronic equipment, and automotive systems. It is especially beneficial for providing protection against power surges caused by lightning strikes. In automobiles, it is used to protect the vehicle\'s electrical system from high voltages caused by a short-circuit in the wiring system.

In conclusion, the BK/MDL-V-3-R is a high-performance voltage-limiting fuse designed for use in low voltage AC power circuits. Its application field includes residential, commercial, and automotive electrical systems. Its working principle is based on an internal bridge which, when triggered by a voltage spike, rapidly switches the current from the line to ground. In addition to protection against overvoltages, the BK/MDL-V-3-R provides protection against over-currents, making it a valuable component in any electrical system.

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