NEC guidelines on snap switches
Fill in the blanks with the appropriate answer.
A snap switch rated 30A, directly connected to aluminum conductors, shall be ______ and marked _______.
A. identified / CU/AL
B. identified / copper only
C. listed / CO/ALR
D. none of the above
Answer: D
Section 404.14(C) does not address 30A rated snap switches. This section of the Code does address snap switches rated 20A or less directly connected to aluminum conductors, which shall be listed and marked CO/ALR.
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 necexpert@aol.com.
