Services & DistributionQuestion 41 of 110

Absent a specific exception, what is the maximum overcurrent protection for a #10 Cu conductor?

a.30 A
b.25 A
c.20 A
d.40 A

Explanation

The small-conductor rule limits #10 Cu to a maximum 30-A overcurrent device.

Law Reference: 2023 NEC 240.4(D)

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