{"product_id":"12-3-wg-romex-nmb","title":"12\/3 WG ROMEX NMB","description":"\u003cp data-start=\"0\" data-end=\"135\"\u003e\u003cstrong data-start=\"0\" data-end=\"21\"\u003e12\/3 WG ROMEX NMB\u003c\/strong\u003e is a standard residential electrical cable used when you need an extra conductor beyond basic hot\/neutral\/ground.\u003c\/p\u003e\n\u003ch3 data-section-id=\"6q9z3o\" data-start=\"137\" data-end=\"157\"\u003e🔌 What it means\u003c\/h3\u003e\n\u003cul data-start=\"159\" data-end=\"475\"\u003e\n\u003cli data-section-id=\"1d0uuyi\" data-start=\"159\" data-end=\"198\"\u003e\n\u003cstrong data-start=\"161\" data-end=\"167\"\u003e12\u003c\/strong\u003e → \u003cstrong data-start=\"170\" data-end=\"198\"\u003e12 AWG copper conductors\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1e5mzg5\" data-start=\"199\" data-end=\"301\"\u003e\n\u003cstrong data-start=\"201\" data-end=\"207\"\u003e\/3\u003c\/strong\u003e → \u003cstrong data-start=\"210\" data-end=\"245\"\u003e3 insulated conductors + ground\u003c\/strong\u003e\n\u003cul data-start=\"248\" data-end=\"301\"\u003e\n\u003cli data-section-id=\"6mzlgy\" data-start=\"248\" data-end=\"301\"\u003etypically \u003cstrong data-start=\"260\" data-end=\"301\"\u003eblack, red, white, bare copper ground\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bik9fp\" data-start=\"302\" data-end=\"356\"\u003e\n\u003cstrong data-start=\"304\" data-end=\"310\"\u003eWG\u003c\/strong\u003e → distributor shorthand (often “with ground”)\u003c\/li\u003e\n\u003cli data-section-id=\"banp9j\" data-start=\"357\" data-end=\"394\"\u003e\n\u003cstrong data-start=\"359\" data-end=\"368\"\u003eROMEX\u003c\/strong\u003e → trade name for NM cable\u003c\/li\u003e\n\u003cli data-section-id=\"16426vc\" data-start=\"395\" data-end=\"475\"\u003e\n\u003cstrong data-start=\"397\" data-end=\"411\"\u003eNMB (NM-B)\u003c\/strong\u003e → \u003cstrong data-start=\"414\" data-end=\"445\"\u003eNon-Metallic Building cable\u003c\/strong\u003e for indoor residential wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"477\" data-end=\"480\"\u003e\n\u003ch3 data-section-id=\"1jn6iii\" data-start=\"482\" data-end=\"499\"\u003e⚡ Common Uses\u003c\/h3\u003e\n\u003cp data-start=\"501\" data-end=\"597\"\u003e\u003cstrong data-start=\"501\" data-end=\"587\"\u003e12\/3 NM-B is typically used for 20-amp circuits where an extra conductor is needed\u003c\/strong\u003e, such as:\u003c\/p\u003e\n\u003cul data-start=\"599\" data-end=\"838\"\u003e\n\u003cli data-section-id=\"woycdn\" data-start=\"599\" data-end=\"648\"\u003eThree-way \/ four-way switch lighting circuits\u003c\/li\u003e\n\u003cli data-section-id=\"z8zfjd\" data-start=\"649\" data-end=\"697\"\u003eCeiling fans with separate fan\/light control\u003c\/li\u003e\n\u003cli data-section-id=\"1g4kl7b\" data-start=\"698\" data-end=\"719\"\u003eSplit receptacles\u003c\/li\u003e\n\u003cli data-section-id=\"181zs67\" data-start=\"720\" data-end=\"783\"\u003eMulti-wire branch circuits (where permitted\/code-compliant)\u003c\/li\u003e\n\u003cli data-section-id=\"92gvqc\" data-start=\"784\" data-end=\"838\"\u003eSome 240V circuits requiring neutral on a 20A load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"840\" data-end=\"843\"\u003e\n\u003ch3 data-section-id=\"r6bkxj\" data-start=\"845\" data-end=\"869\"\u003e🔥 Electrical Rating\u003c\/h3\u003e\n\u003cul data-start=\"871\" data-end=\"976\"\u003e\n\u003cli data-section-id=\"rfj4lo\" data-start=\"871\" data-end=\"916\"\u003eTypically protected by a \u003cstrong data-start=\"898\" data-end=\"916\"\u003e20-amp breaker\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"xnruo5\" data-start=\"917\" data-end=\"948\"\u003eRated for \u003cstrong data-start=\"929\" data-end=\"948\"\u003e600V insulation\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11uvj8s\" data-start=\"949\" data-end=\"976\"\u003eIndoor dry locations only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"978\" data-end=\"981\"\u003e\n\u003ch3 data-section-id=\"13im7t1\" data-start=\"983\" data-end=\"1008\"\u003e🧠 Simple Explanation\u003c\/h3\u003e\n\u003cblockquote data-start=\"1009\" data-end=\"1137\"\u003e\n\u003cp data-start=\"1011\" data-end=\"1137\"\u003eThis is heavy-duty household wire for 20-amp circuits that need an extra red conductor for switching or multi-function wiring.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"SOUTHWIRE COMPANY, LLC","offers":[{"title":"Default Title","offer_id":52411472642337,"sku":"RX123WG","price":0.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1905\/1041\/files\/download_7_1a8f687f-1897-4c0a-bbb3-0a5d7d9b7545.webp?v=1777567039","url":"https:\/\/standardvmi.com\/products\/12-3-wg-romex-nmb","provider":"Standard Plumbing Supply","version":"1.0","type":"link"}