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Fuses

Fuses have a long and distinguished history. From the early days of wire and fire, to today\'s sophisticated electrical systems, which are used to safely control and protect electrical components, fuses are still one of the most important elements in electronics. Fuses come in many different sizes and configurations, but the most common type is the BK/MAX-20 fuse.

What Is a BK/MAX-20 Fuse?

The BK/MAX-20 is a mid- sized fuse, designed to safely handle moderately sized electrical loads. The BK/MAX-20 is UL and CSA approved, and carries a current rating up to 20 amperes. It is available in both general-purpose and special-purpose versions. The general- purpose version typically has a black or translucent body, while the special-purpose version has a clear body.

Application Field and Working Principle of BK/MAX-20 Fuses

BK/MAX-20 fuses are used in applications that require moderate current protection. They are commonly used in industrial and commercial settings, such as in HVAC systems, electrical panels, and motor starters. The fuses are typically used in series, to limit the amount of current passing through sensitive electrical components. The BK/MAX-20 has a fast-acting trip time and is typically designed to open after a 2-4 second overload.

The BK/MAX-20 fuse works by passing a current through a small section of metal. When a power surge or other overload occurs, the metal filament heats up and eventually melts. This breaks the connection, and the current is interrupted. It is important to note that the BK/MAX-20 fuse also has a metal back-up element, which is designed to protect against short- circuit conditions.

The BK/MAX-20 fuse is easy to install and can be used in various configurations. The most common type is a two-transistor configuration, which uses two fuses in series. This is a common setup for many industrial and commercial applications. The two fuses are connected to the terminals of the power supply and provide dual protection against current overloads.

How to Select BK/MAX-20 Fuses

When selecting a BK/MAX-20 fuse, the most important consideration is the application. The fuse must be able to handle the size of the load, while also providing the needed protection. It is also important to make sure that the voltage rating of the fuse is appropriate for the circuit it is being used in. Additionally, it is important to consider the size of the fuse; too large a size can result in an inefficient fuse.

When selecting a BK/MAX-20 fuse, it is also important to consider the mounting method. The fuse can be easily installed using either the push-in or screw-in method. For most applications, the push-in is the preferred method. The push-in mount is especially useful when the fuse is located in hard-to-reach areas. The screw-in mount, on the other hand, is preferred if the fuse must be mounted on a flat surface.

Conclusion

The BK/MAX-20 fuse is a reliable and cost-effective way to protect electrical systems from overloads and short-circuits. The versatility and ease of installation make it a great choice for many applications. Whether being used in industrial equipment, HVAC systems, or in homes, the BK/MAX-20 fuse is sure to provide peace of mind and reliable protection.

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