Services & DistributionQuestion 38 of 110
A panelboard is rated 225 A. What is the maximum rating of the overcurrent device that may protect it?
a.200 A
b.225 A
c.250 A
d.400 A
Explanation
Each panelboard must be protected by an overcurrent device rated no more than the panelboard rating, so 225 A is the maximum.
Law Reference: 2023 NEC 408.36Practice all 110 questions free — no signup required.
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