BK/C520-5A

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A fuse is an important component in circuit protection. The BK/C520-5A is one type of fuse built for specific applications. This article examines the application fields and working principles of the BK/C520-5A.

What is the BK/C520-5A Fuse?

The BK/C520-5A is an AgCdO ultra-rapid fuse, designed for use in UL 248-14 and IEC 60127-3. This fuse is rated at a current of 5A and is used in high frequency and low frequency circuits. It has a small size and offers a high interrupting rating of 20kA at 500V AC.

Application Fields of BK/C520-5A Fuse

The BK/C520-5A fuse is often used in a variety of circuits, from ordinary household appliances and circuit boards to communication and military equipment. Due to its small size and high interrupting rating, it returns current back to its normal state quickly even after a surge of current passes through it. Furthermore, with its wide range operating temperature of -55°C to +125°C, it can withstand extreme temperatures without being damaged.

Working Principle of BK/C520-5A Fuse

The basic working principle of the BK/C520-5A fuse is based on the concept of overcurrent protection. When a surge of current passes through it, the fuse’s temperature increases due to the Joule effect. When the temperature increases beyond the melting point of the fuse, it melts and breaks the current circuit. As a result, the circuit breaker trips and the current is returned to its normal state.

In order to prevent accidental overloads, the BK/C520-5A fuse includes a time-delay feature. The time-delay feature works by comparing incoming current to the fuse’s rated current. If the current is higher than the fuse’s rating, the time-delay feature will activate and open the main contacts of the circuit, thereby preventing a further overload and giving the circuit time to reset itself.

Conclusion

The BK/C520-5A is a high quality fuse designed for use in a variety of circuits. It offers good current protection and time-delay for overloads. Its small size and high interrupting rating make it ideal for many applications. By understanding the application fields and working principle of the BK/C520-5A, engineers and technicians can gain a better understanding of how this fuse works and how it can be used in the most safe and efficient way possible.

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