BK/FMX-40

Fuses are essential components of electrical systems and are used to protect electrical equipment against overcurrent, overvoltage, undershoots, and other disturbances. The BK/FMX-40 is a type of fuse specially designed for industrial applications. It is a miniature low-voltage fuse, and is typically used in control circuits with power up to 500V. This fuse has many advantages over other fuses, including a small size, fast reaction time and high performance. In this article, we will explore the application field and working principle of the BK/FMX-40.

Applications of BK/FMX-40 Fuse

The BK/FMX-40 is a miniaturized low-voltage fuse that is mainly used in control circuits. It is suitable for direct power circuits with a voltage of up to 500V, and is usually used in conjunction with other components such as circuit breakers and contactors. This type of fuse is generally used in industrial applications like motor control, lighting control and automation systems. It can also be used in residential and commercial applications to protect against overloads and short-circuits.

The BK/FMX-40 is an ideal choice for situations that require high performance and fast reaction time. Its miniature size also makes it easy to fit in tight places. In addition, this type of fuse uses an inert ceramic body construction, allowing it to withstand extreme temperatures and making it much safer to use.

Working Principle of BK/FMX-40 Fuse

The BK/FMX-40 fuse is composed of a link composed of two strips of tin and copper alloy. The link is connected to the terminals and passes the current through the fuse. When the current exceeds the rated value, the link will melt. This interrupts the circuit and the current will cease. The melted link will indicate the fuse was activated and must be replaced.

The BK/FMX-40 also has a built-in thermal overload protection feature. If the load current exceeds the rated value, the link will heat up and expand. This will open the circuit and protect the components from further damage. The protection factor of the BK/FMX-40 is about 5 times the rated value.

Conclusion

The BK/FMX-40 is a miniature low-voltage fuse that is commonly used in industrial control and automation systems. Its small size and quick reaction time make it ideal for such applications. It also has an inert ceramic body, which makes it much safer to use. The BK/FMX-40 fuse works by melting its link when the current exceeds the rated value. This opens the circuit and prevents further damage. With its fast reaction time and high performance, the BK/FMX-40 is the perfect choice for protecting electrical devices and circuits.