{"product_id":"12-2-nm-b-copper-building-wire","title":"12\/2 NM-B Copper Building Wire with Ground, 600V (Yellow Jacket)","description":"\u003cp data-path-to-node=\"1\"\u003e\u003cb data-path-to-node=\"1\" data-index-in-node=\"0\"\u003eThe versatile mainstay of modern residential electrical systems, this 12 AWG NM-B Copper Building Wire is specifically engineered for 20-amp branch circuits. Featuring two high-conductivity copper conductors and a dedicated bare grounding wire, this cable is easily identified by its signature high-visibility yellow jacket, ensuring quick identification for installers and inspectors alike.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"2\"\u003eWhy Choose 12\/2 NM-B Copper Building Wire?\u003c\/h4\u003e\n\u003cp data-path-to-node=\"3\"\u003eThis 2-conductor (with ground) configuration is a fundamental requirement for the increased power demands of contemporary homes. Designed for interior dry-location wiring, the \u003cb data-path-to-node=\"3\" data-index-in-node=\"176\"\u003eType NM-B\u003c\/b\u003e construction allows for rapid routing through wooden framing without the need for conduit, significantly reducing labor time and material costs compared to traditional piping methods.\u003c\/p\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\"\u003e\u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"0\"\u003eColor-Coded Circuit Identification:\u003c\/b\u003e The bright yellow PVC jacket provides an immediate visual signal that the circuit is rated for 20 amps, helping to prevent cross-wiring with 15-amp (white) or 30-amp (orange) circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-path-to-node=\"4,1,0\" data-index-in-node=\"0\"\u003eSuperior Copper Conductivity:\u003c\/b\u003e Annealed (soft) copper conductors provide the reliable electrical performance and low resistance necessary for consistent power delivery to sensitive electronics and kitchen appliances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003e\u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"0\"\u003eLow-Friction Pulling Jacket:\u003c\/b\u003e The outer PVC sheath is formulated with a slick finish, allowing the cable to glide through bored studs and floor joists with minimal effort.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003e\u003cb data-path-to-node=\"4,3,0\" data-index-in-node=\"0\"\u003eReliable Dual-Layer Insulation:\u003c\/b\u003e Each conductor is shielded with heat-resistant PVC and topped with a tough nylon jacket (THHN\/THWN-2), providing enhanced protection against abrasions during the rough-in stage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"5\"\u003eTechnical Specifications: 12\/2 NM-B Copper\u003c\/h4\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003eConductor Size:\u003c\/b\u003e 12 AWG\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eNumber of Conductors:\u003c\/b\u003e 2 (plus Ground)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003eColor Code:\u003c\/b\u003e Black, White, Bare Ground\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,3,0\"\u003e\u003cb data-path-to-node=\"6,3,0\" data-index-in-node=\"0\"\u003eJacket Color:\u003c\/b\u003e Yellow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,4,0\"\u003e\u003cb data-path-to-node=\"6,4,0\" data-index-in-node=\"0\"\u003eAmpacity:\u003c\/b\u003e 20 Amps at 60°C (NEC Table 310.16)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,5,0\"\u003e\u003cb data-path-to-node=\"6,5,0\" data-index-in-node=\"0\"\u003eVoltage:\u003c\/b\u003e 600V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,6,0\"\u003e\u003cb data-path-to-node=\"6,6,0\" data-index-in-node=\"0\"\u003eInsulation:\u003c\/b\u003e Polyvinyl Chloride (PVC) with Nylon Covering (Type THHN)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,7,0\"\u003e\u003cb data-path-to-node=\"6,7,0\" data-index-in-node=\"0\"\u003eMax Temp:\u003c\/b\u003e 90°C (Dry locations only)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,8,0\"\u003e\u003cb data-path-to-node=\"6,8,0\" data-index-in-node=\"0\"\u003eConductor Material:\u003c\/b\u003e Annealed (Soft) Copper\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,9,0\"\u003e\u003cb data-path-to-node=\"6,9,0\" data-index-in-node=\"0\"\u003eStandards:\u003c\/b\u003e UL Standard 83, UL Standard 719, ASTM B-3, B-8, Federal Spec A-A-59544\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"7\"\u003eCommon Applications\u003c\/h4\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003eKitchen Branch Circuits:\u003c\/b\u003e The standard choice for GFCI-protected outlets serving countertops and heavy kitchen appliances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eDedicated Laundry Room Circuits:\u003c\/b\u003e Frequently utilized for washing machines and shared laundry area outlets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eHome Office \u0026amp; Entertainment Centers:\u003c\/b\u003e Ideal for powering computer workstations and home theater systems that require a stable, 20-amp dedicated feed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eBathroom GFCI Circuits:\u003c\/b\u003e The industry standard for wiring bathroom receptacles to handle high-wattage hair dryers and personal grooming tools.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"9\"\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eTechnical Note:\u003c\/b\u003e All values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyer’s responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes. NM-B is for dry, indoor use only.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e \u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003ci data-path-to-node=\"12\" data-index-in-node=\"0\"\u003e*All values are nominal and subject to correction. Ampacity is based on the National Electrical Code (NEC) 60°C column for NM-B cable, regardless of the conductor temperature rating.\u003c\/i\u003e\u003c\/p\u003e","brand":"Wire America","offers":[{"title":"250 ft. Spool","offer_id":53372884943162,"sku":"NMB12-2-250","price":227.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":53372884975930,"sku":"NMB12-2-500","price":451.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":53372885008698,"sku":"NMB12-2-1K","price":897.0,"currency_code":"USD","in_stock":true},{"title":"2500 ft. Spool","offer_id":53372885041466,"sku":"NMB12-2-2500","price":2231.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":53372885074234,"sku":"NMB12-2-FT","price":0.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0234\/9114\/files\/12-2-nm-b-yellow-jacket-copper-romex-cable.jpg?v=1777312061","url":"https:\/\/www.wireamerica.com\/products\/12-2-nm-b-copper-building-wire","provider":"Wire America ","version":"1.0","type":"link"}