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All fuses have a voltage rating, which is independent of its current rating.

The current rating is the maximum current the fuse will pass; any higher, and it will blow.

The voltage rating is the maximum voltage that is allowed to appear across the fuse should it blow.

If the voltage is any higher than the fuse manufacturer's rating, it may arc across inside the fuse, causing power to continue to be supplied to the faulty item that caused the fuse to blow in the first place. This is obviously very dangerous, and could result in severe electric shock, or fires. The voltage rating is usually stamped on one end of the fuse.

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15y ago

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