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It seems like selectivity is always lost when current-limiting fuses are used. True?

April 26, 2017fuses Lost selectivity Used

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It seems like selectivity is always lost when current-limiting fuses are used. True?

1 Answer

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False. In fact, quite the opposite is true. Amp-Trap 2000® fuses will be selective for all levels of overcurrents, as long as the ampere rating of the upstream Amp-Trap 2000 fuse is twice that of the downstream fuse.