Overcurrent protection shall not exceed which rating for 10 AWG copper conductors?

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Multiple Choice

Overcurrent protection shall not exceed which rating for 10 AWG copper conductors?

Explanation:
Overcurrent protection is sized to match the conductor’s ability to carry current safely. For 10 AWG copper conductors, the ampacity used for most installations is 30 amperes (based on NEC table values for a 60°C insulation rating). That means the overcurrent device cannot have a rating higher than 30 A, or the conductor could overheat in a fault or overload. So the largest protective device you can install on a 10 AWG copper conductor is 30 A. Smaller ratings (like 15, 20, or 25 A) are still acceptable in appropriate circumstances, but 30 A is the maximum allowed.

Overcurrent protection is sized to match the conductor’s ability to carry current safely. For 10 AWG copper conductors, the ampacity used for most installations is 30 amperes (based on NEC table values for a 60°C insulation rating). That means the overcurrent device cannot have a rating higher than 30 A, or the conductor could overheat in a fault or overload. So the largest protective device you can install on a 10 AWG copper conductor is 30 A. Smaller ratings (like 15, 20, or 25 A) are still acceptable in appropriate circumstances, but 30 A is the maximum allowed.

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