Branch Circuits & WiringQuestion 177 of 521
The rating of a branch circuit supplying two or more outlets is determined by what?
a.The largest conductor
b.The ampere rating of the overcurrent device protecting the circuit
c.The receptacle count
d.The voltage only
Explanation
Section 210.3 states that a branch circuit's rating is determined by the maximum permitted ampere rating of the overcurrent device protecting the circuit, using standard sizes such as 15, 20, 30, 40, and 50 A. The conductor size, number of receptacles, or voltage alone do not define the branch-circuit rating.
Law Reference: 2023 NEC §210.18Practice all 521 questions free — no signup required.
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