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Tuesday, May 24, 2022
Question:
Hello CQD, thanks for the information you provide. Are single-pole and 3-way switches required to be listed? Are listed switches suitable for aluminum connections?
Thanks for your comments.
Allison Ford
A
Answer:
Hello Allison, thank you for participating. Pretty straightforward questions. First, snap switches are required to be listed as indicated in Section 404.14, snap switches shall be listed and used within their ratings. Section 404.14(C) indicates that snap switches directly connected to aluminum conductors and rated 20 amperes or less shall be marked CO/ALR. See also Section 110.14(A).