{"id":8688,"date":"2025-06-03T11:36:47","date_gmt":"2025-06-03T03:36:47","guid":{"rendered":"https:\/\/totcables.com\/?p=8688"},"modified":"2025-06-04T10:12:16","modified_gmt":"2025-06-04T02:12:16","slug":"what-is-nm-b-wire-everything-you-need-to-know-about-non-metallic-sheathed-cable","status":"publish","type":"post","link":"https:\/\/totcables.com\/?p=8688","title":{"rendered":"What Is NM-B Wire? Everything You Need to Know About Non-Metallic Sheathed Cable"},"content":{"rendered":"

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When it comes to residential wiring, NM-B wire<\/strong><\/a>\u2014short for Non-Metallic Sheathed Cable, Type B<\/strong>\u2014is one of the most common and trusted choices used by electricians and contractors across North America. But what exactly is NM-B wire, and why is it so widely used in homes and light commercial buildings?<\/p>\n

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In this article, we\u2019ll break down everything you need to know what does nm b wire mean, including its structure, uses, benefits, and how it compares to other types of electrical wire.<\/p>\n

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NM-B Building Wire

NM-B Building Wire<\/p><\/div>\\n\\n<\/p>\n

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\ud83d\udd0d What Is NM-B Wire?<\/h3>\n

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NM-B wire<\/strong> is an electrical cable that contains multiple copper conductors<\/strong> (usually two or three) individually insulated with thermoplastic material and enclosed within a PVC jacket<\/strong>. It also includes a bare ground wire<\/strong>.<\/p>\n

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The \u201cNM\u201d stands for non-metallic<\/strong>, indicating that the outer jacket is made of a plastic material rather than a metal sheath. The \u201cB\u201d indicates that it is rated for 90\u00b0C (194\u00b0F)<\/strong> in dry locations.<\/p>\n

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Key characteristics:<\/strong><\/p>\n

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