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Monday, May 1, 2023
Question:
Hello CQD. Can you mix 120v in same conduit as 480v? Can you run a 230v circuit strait through a disconnect enclosure that also has 480v circuit terminated to the disconnect? Thanks, Bryson Miles
A
Answer:
Hello Bryson and thank you for your question. The installation you described in your question may be permitted. The disconnect and enclosure will need to be listed for that use, as well as having sufficient gutter space for the additional conductors. Additionally, the color-coding requirements in Section 200.6 for the grounded conductors, and 210.5(C)(1)(a) for ungrounded conductors will need to be complied with. Lastly, any distribution equipment will require labeling/marking identifying the color coding used per Section 210.5(C)(1)(b).