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Do fuses reduce Arc Flash Incident Energy?

Any overcurrent device, whether fused switch or circuit breaker, has the potential to limit arc flash energy.   The real issue concerns the amount of Arc Flash Incident Energy (AFIE) reduction.  In general circuit breakers provide superior arc flash incident energy reduction in electrical systems where there are lower fault current levels.  Where there are higher levels of fault current either circuit breakers or fuses may be used.  An Arc Flash study must be commissioned to determine the final amount of AFIE  provided by the selected solution.
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