Glass Fuse 20A 20X5mm Fast Blow

Glass fuses are commonly used in circuits to protect the circuit from too much current, or from a reversed polarity connection. It often happens that circuits stop working after the power dipped or after a thunderstorm due a current surge on the power lines. In most cases this is simply because the glass fuse inside the unit blew and needs to be replaced. Luckily this can easily be done by pulling the old fuse in the unit out and replacing it with one of these glass fuses.

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