MV155F2DBX200E

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Electrical systems often offer some level of protection for their components and circuits, and specialty fuses like the MV155F2DBX200E are one type of device used to achieve this aim. These fuses typically offer a divided protection role by utilizing a dual element system designed to provide the best combination of both over-current and short-circuit protection. This article will discuss the typical application field of the MV155F2DBX200E, as well as its working principle.

Application Fields

The MV155F2DBX200E is a dual-element time delay fuse with an interrupting capacity of 200A. This fuse is typically suitable for power distribution systems that require a combination of short-circuit and overload protection. It typically offers a wide range of voltage ratings and ampere ratings, up to 600V and 200A, respectively. These fuses are typically used for motor circuits, fixture and equipment circuit protection, lighting circuits, feeder protection, service entrance protection, branch circuits, and other residential and commercial applications.

The MV155F2DBX200E fuse may also be used in applications such as harmonic mitigation, surge arrestors, and transformer protection as well as many other OEM applications. It is also often used in original equipment and DIN rail applications, as well as powering a variety of devices such as adjustable speed drives, PLCs, and soft starters.

Working Principle

The MV155F2DBX200E fuse is a dual-element time delay fuse, meaning that it consists of two fuse elements: the short-circuit element and the over-current element. These two elements work together to provide both over-current and short-circuit protection. The short circuit element acts as a fuse in a very fast manner, meaning that it will quickly respond to a short-circuit and quickly shut off the current flow. This element typically has a melting time of less than one second, meaning that it is very effective in preventing damage caused by short-circuits.

Meanwhile, the over-current element is designed to work in tandem with the short-circuit element in order to provide additional protection against voltage surges or prolonged high current usage. This element typically has a longer melting time, allowing it to act as a fuse and cut off the current flow after a certain period of time has elapsed. This ensures that surges or high current situations are contained and do not cause any further damage to the system.

The fuse elements of the MV155F2DBX200E fuse are specifically designed to offer the best combination of both stand-alone protection of a single fuse element and the protection of a dual-element fuse system. The fuse also features an indicator window that allows it to indicate when it has suffered degradation due to a voltage surge or over-current situation.

Conclusion

The MV155F2DBX200E fuse is a dual-element time delay fuse suitable for a wide range of applications. These fuses offer protection from short-circuits and over-current situations, as well as surge protection and other OEM applications. The fuse elements are specifically designed to offer the best combination of both stand-alone protection and the protection of a dual-element system. The fuse also has an indicator window for indicating degradation. Therefore, the MV155F2DBX200E fuse can be a great choice for a wide range of power systems.

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