Dimmers installed in ungrounded conductors shall have overcurrent protection no greater than ____% of the dimmer rating and shall be disconnected from all ungrounded conductors when the dimmer's master or individual switch (or circuit breaker) is in the open position.
A) 100
B) 112
C) 125
D) 150

Question

Quizplus · Accepted Answer

According to NEC 404.14(E), dimmers installed in ungrounded conductors shall have overcurrent protection no greater than 125% of the dimmer rating and shall be disconnected from all ungrounded conductors when the dimmer's master or individual switch (or circuit breaker) is in the open position. So, the best choice is C, which mentions 125%.

Dimmers Installed in Ungrounded Conductors Shall Have Overcurrent Protection No