Selectivity analysis in low voltage power distribution systems with fuses and circuit breakers

This white paper discusses various techniques and methods for analyzing the selective capability of fuses and circuit breakers.

Interest in complete overcurrent device selectivity has increased due to the addition of selectivity requirements to articles 700, 701 and 708 of the National Electrical Code (NFPA70). This white paper discusses various techniques and methods for analyzing the selective capability of fuses and circuit breakers in systems in which either may be used above the other.

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