0219.400MXABP

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0219.400MXABP Application Field And Working Principle

Fuses are an essential part of most electrical circuit designs. They are designed to provide protection against overloading and short-circuiting current. The 0219.400MXABP is a type of fuse that is commonly used for such applications. It is a compact, environmentally sealed explosion-proof fuse with a relatively low voltage rating.

Description

The 0219.400MXABP combines an environmentally sealed enclosure with a spring-loaded, silver-based, explosion-proof fusible element. This type of fuse is UL listed, and meets all applicable requirements of the UL Standard for Fuses, UL 4248-1. The 0219.400MXABP is designed for installation in an equipment enclosure, such as a switchgear, transformer, or control cabinet. The operated temperature range is between -22°F (-30°C) and 230°F (110°C). The 0219.400MXABP also has a voltage rating of 600 volts AC (class RK1). The fusible element is of a high voltage rating, allowing it to protect against overloads of higher voltage applications.

Application Field

The 0219.400MXABP is suitable for use in older or low-voltage equipment, such as in distribution panel boards, motor controls, and lighting systems. Due to its low-voltage rating, the 0219.400MXABP should not be used in medium-voltage equipment. It is also suitable for harsh and hazardous environmental conditions, such as those found in petroleum refineries, chemical process plants, and off-shore platforms.

Working Principle

When a fault occurs in a circuit, the current flowing through the circuit will exceed the current carrying capacity of the circuit. The overload protection provided by the 0219.400MXABP will activate and remove the fault from the circuit, thus preventing damage to the equipment or components. This is done by melting the fusible element within the 0219.400MXABP, which is designed to interrupt the overload current.

When the overload current reaches the melting point of the fusible element, the element will melt, creating an arc and thus disrupting the current flow through the circuit. This arc causes the circuit to trip, protecting it from further damage. This is why it is important to select a fuse with a high melting point, as this will ensure that it provides efficient protection for longer periods of time.

Conclusion

The 0219.400MXABP is an explosion-proof fuse with a compact, environmentally sealed enclosure. It is suitable for use in low-voltage equipment, such as distribution panel boards, motor controls, and lighting systems. When a fault occurs in a circuit, the overload protection provided by the 0219.400MXABP will activate, melting the fusible element to interrupt the overload current and protect the circuit from further damage.

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