Services & DistributionQuestion 41 of 521
What is the minimum service disconnecting means rating for a one-family dwelling?
a.60 A
b.150 A
c.125 A
d.100 A
Explanation
Per 230.79(C), a one-family dwelling service disconnect must be rated at least 100 A, 3-wire. 60 A is below the minimum, and 125 A/150 A exceed the required minimum.
Law Reference: 2023 NEC §230.79(C)Practice all 521 questions free — no signup required.
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