Advanced WiringQuestion 70 of 110
Two 10-HP, 460-V motors (14 A each) are supplied by one feeder. What minimum feeder conductor ampacity is required?
a.28 A
b.31.5 A
c.35 A
d.25 A
Explanation
125% of the largest motor plus the other: (14 x 1.25) + 14 = 17.5 + 14 = 31.5 A.
Law Reference: 2023 NEC 430.24Practice all 110 questions free — no signup required.
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