Services & DistributionQuestion 66 of 521
A feeder overcurrent device protecting a feeder that supplies continuous loads must have a rating not less than:
a.125% of the continuous load plus 100% of the noncontinuous load
b.100% of the total connected load
c.80% of the continuous load
d.150% of the continuous load
Explanation
Per 215.3, where a feeder supplies continuous load(s), the overcurrent device rating must be at least 125% of the continuous load plus 100% of the noncontinuous load (unless the assembly is listed for 100% operation). The other options misstate the required factor.
Law Reference: 2023 NEC §215.3Practice all 521 questions free — no signup required.
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