BK/GMD-250MA

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The BK/GMD-250MA is a current limiting, class C medium time-delay fuse that is widely used in a variety of applications. This type of fuse is a non-interrupting current limiting fuse that can provide a high current carrying capacity while still providing an adequate level of protection for the circuit to which it is applied.

The BK/GMD-250MA fuses belong to the family of fuses known as Class C fuses. These fuses are designed to provide sufficient time delay to allow normal motor start ups and overloads to pass through without interruption, while still providing protection against short circuits and ground faults. The Class C fuse basis allows the fuse to regulate current flow without interruption, and it is able to open quickly following the event of a sustained, high-current overload or short circuit.

The BK/GMD-250MA fuses are available in both standard and UL Rating versions, enabling their use in a range of applications, including residential, commercial, industrial, and transportation. The standardized UL rating ensures the fuse will protect circuits from any type of overcurrent.

The BK/GMD-250MA fuse is designed to protect circuits from overload, short circuit, and ground fault protection. An overload is defined as an excessive current flow through the circuit due to an elevated load. Conversely, a short circuit is defined as a massive, instantaneous, non-variable amount of current flow through the circuit, and results from a very low resistance short circuit leaving the wire carrying that current quickly destroyed. Finally, a ground fault occurs when an unwanted current returns to the neutral or ground conductor, and this must be prevented or the BK/GMD-250MA fuse will trip.

The working principle of the BK/GMD-250MA fuse is based upon the melting of a fusible element (wire) contained inside a metal enclosure. The fusible element is designed to begin melting and open the circuit when the current exceeds the rated amperage of the fuse. The time it takes for the fusible element to melt is known as the “Time-Delay” rating of the fuse, and it indicates the amount of time that the current can exceed the rated amperage before the fuse will open.

The BK/GMD-250MA fuses are well suited for most standard applications, particularly those with relatively low fault currents. These fuses provide adequate overload protection in commercial and residential applications, as well as providing surge protection in industrial and transportation applications. The design of the BK/GMD-250MA fuses makes them highly reliable, and they are capable of withstanding severe industrial and environmental conditions. They are well-suited for protection of motor start circuits, and provide a high degree of short-circuit and ground fault protection.

In summary, the BK/GMD-250MA is a medium time-delay, Class C non-interrupting fuse. This fuse is designed for current limitation during overload, short circuit, and ground fault occurrences. It offers short-time overload protection, while providing accurate current limiting to reduce circuit damage. The enclosure is rated for both standard and UL applications, and is designed to withstand harsh industrial and environmental conditions.

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