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ELECTRICAL CONTRACTOR: NEC 2020 Impacts 0–10V Control Wiring

Craig DiLouie December 28, 2021

Per a change in the 2020 National Electrical Code effective January 1, 2022, 0–10V (Class 2) dimming wire insulation colors have changed to eliminate use of any reserved colors, notably gray. The National Electrical Manufacturers Association (NEMA) responded with an industry guideline adopting pink as a substitute.

In this article written for the December 2021 issue of ELECTRICAL CONTRACTOR, I discuss the color change and then take a quick look at the cost-effectiveness of 0–10V versus digital dimming.

Click here to check it out.

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Craig DiLouie
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