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Fuses

Among the different types of fuses, the 0471004.MRT1 type is a high voltage fuse used mainly in power distribution systems, namely in medium voltage applications. It is particularly useful for protecting medium voltage circuit components, such as transformers, from overcurrent conditions. In the event of an overcurrent condition, the fuse element interrupts the circuit, stopping the flow of current and preventing potential damage to the circuit components.

Application Field of 0471004.MRT1 Fuse

The 0471004.MRT1 fuse is designed for medium voltage applications, which include the protection of transformer banks, capacitor banks, cables, switchgear and other switchgear components. It is rated at 20-38 kV AC and has a current rating of 40-1000 A. These types of fuses are common in electric power distribution systems, usually controlling medium voltage power distribution.

Working Principle of 0471004.MRT1 Fuse

The 0471004.MRT1 fuse operates in two stages. In the first stage, the fuse trips at a pre-set hold current level. This is the critical current setting, which acts as a trip point and circuit-breaker for the fuse. In the second stage, the fuse trips at a higher level, which is usually higher than the current level of the circuit it’s protecting. This higher current level acts as an insulation level, protecting the circuit components from potential damage.

The 0471004.MRT1 fuse has a melting element which melts when an overcurrent or short circuit is detected. The melting element opens the circuit, breaking the flow of current and removing the overcurrent condition. The fuse element also provides a visual indication that an overcurrent has occurred.

Conclusion

The 0471004.MRT1 high voltage fuse is specially designed for medium voltage applications. It trips in two stages, providing protection against both overcurrent and short circuit conditions. Being a mechanical device, it provides a visual indication of an overcurrent condition to indicate that the circuit needs to be checked or repaired.

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