Code Quiz: Conductors in Luminaire Outlet Boxes

What, if any, is the temperature limit of conductors installed in luminaire outlet boxes?

A) 60°C

B) 75°C

C) 90°C

D) Conductors shall not be subjected to temperatures greater than that for which they are rated.

Find the Answer

Answer: D

As outlined in the first paragraph of Sec. 410.21, “Luminaires shall be of such construction or installed so that the conductors in outlet boxes shall not be subjected to temperatures greater than that for which the conductors are rated.”

Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at [email protected].