{"product_id":"8-2-nm-b-copper-building-wire","title":"8\/2 NM-B Copper Building Wire with Ground, 600V (Black Jacket)","description":"\u003cp data-path-to-node=\"1\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"1\"\u003eBridging the gap between standard household outlets and heavy-duty power requirements, this 8 AWG NM-B Copper Building Wire is the go-to solution for high-wattage residential branch circuits. Engineered with two high-purity copper conductors and a dedicated bare ground, this cable offers the ruggedness needed for sustained loads while maintaining the flexibility required for fast-paced residential construction.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"2\"\u003eWhy Choose 8\/2 NM-B Copper Building Wire?\u003c\/h4\u003e\n\u003cp data-path-to-node=\"3\"\u003eThis 2-conductor (with ground) assembly is designed to streamline the installation of dedicated 40-amp circuits. The \u003cb data-index-in-node=\"117\" data-path-to-node=\"3\"\u003eType NM-B\u003c\/b\u003e construction allows you to route the cable directly through wooden studs and floor joists in dry, interior locations, eliminating the labor and material costs associated with conduit systems.\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-index-in-node=\"0\" data-path-to-node=\"4,0,0\"\u003eOptimized Copper Conductivity:\u003c\/b\u003e Soft-annealed copper provides superior electrical throughput and minimal heat buildup, ensuring long-term efficiency for high-draw appliances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"4,1,0\"\u003eTough, Low-Friction Outer Shell:\u003c\/b\u003e The black PVC jacket is specifically formulated to resist tearing and snagging, allowing it to glide through bored holes during the rough-in stage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"4,2,0\"\u003eIntegrated Grounding Safety:\u003c\/b\u003e Features a full-sized bare copper grounding conductor, providing an essential low-impedance path to ensure maximum circuit safety.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"4,3,0\"\u003eTHHN-Grade Primary Insulation:\u003c\/b\u003e Individual conductors are protected by a dual layer of heat-resistant PVC and a slick nylon topcoat, providing an extra barrier against installation abrasion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"5\"\u003eTechnical Specifications: 8\/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-index-in-node=\"0\" data-path-to-node=\"6,0,0\"\u003eConductor Size:\u003c\/b\u003e 8 AWG\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,1,0\"\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-index-in-node=\"0\" data-path-to-node=\"6,2,0\"\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-index-in-node=\"0\" data-path-to-node=\"6,3,0\"\u003eAmpacity:\u003c\/b\u003e 40 Amps at 60°C (NEC Table 310.16)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,4,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,4,0\"\u003eVoltage:\u003c\/b\u003e 600V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,5,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,5,0\"\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=\"6,6,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,6,0\"\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=\"6,7,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,7,0\"\u003eConductor Material:\u003c\/b\u003e Annealed (Soft) Copper\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,8,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"6,8,0\"\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-index-in-node=\"0\" data-path-to-node=\"8,0,0\"\u003eResidential HVAC Units:\u003c\/b\u003e Ideally suited for powering central air conditioning condensers and smaller heat pump systems requiring a 40A feed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"8,1,0\"\u003eElectric Cooktops:\u003c\/b\u003e The primary choice for dedicated 240V circuits supplying modern high-induction or standard electric cooktops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"8,2,0\"\u003eLarge Space Heaters:\u003c\/b\u003e Frequently utilized for permanent garage heaters and large electric baseboard units in cold-weather climates.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"8,3,0\"\u003ePool and Spa Equipment:\u003c\/b\u003e Used for the interior portion of the run feeding pool heaters or small spa disconnects where a neutral is not required.\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-index-in-node=\"0\" data-path-to-node=\"10\"\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-index-in-node=\"0\" data-path-to-node=\"12\"\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":53372885762362,"sku":"NMB8-2-250","price":646.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":53372885795130,"sku":"NMB8-2-500","price":1284.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":53372885827898,"sku":"NMB8-2-1K","price":2555.0,"currency_code":"USD","in_stock":true},{"title":"2500 ft. Spool","offer_id":53372885860666,"sku":"NMB8-2-2500","price":6354.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":53372885893434,"sku":"NMB8-2-FT","price":2.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0234\/9114\/files\/8-2-nm-b-black-jacket-copper-romex-cable.jpg?v=1777311662","url":"https:\/\/www.wireamerica.com\/products\/8-2-nm-b-copper-building-wire","provider":"Wire America ","version":"1.0","type":"link"}