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Thursday, May 20, 2021
Question:
Hello CQD,
Does the NEC require the service disconnect to be marked "MAIN" or Service Disconnect? Some inspectors require the word "Main."
Thanks,
Ben Farro
A
Answer:
Hi Ben,
Section 230.70(B) clearly addresses this marking requirement as "Service Disconnects" not "Main." It is interesting that some manufacturers include a marking sticker that has the word "Main" on it. The NEC includes the word "Main" over 100 times and specifically in the definition of service disconnect. The answer to your question was specific to address what the NEC requires for this marking. Hope this is helpful.