Question 4089 of 749 · Maryland Journeyperson Electrician Exam
A branch circuit supplies 24 amperes of continuous load and 6 amperes of noncontinuous load. What is the minimum standard overcurrent device rating?
Exactly one answer is correct.
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Correct answer to question 4089
- A: 40 amperes
Explanation
210.20(A) requires the overcurrent device to be at least 125 percent of the continuous load plus the noncontinuous load: 24 A x 1.25 = 30 A, plus 6 A = 36 A. The next standard size at or above 36 A in 240.6 is 40 A.
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