{"product_id":"8-3-nm-b-copper-building-wire","title":"8\/3 NM-B Copper Building Wire with Ground, 600V (Black Jacket)","description":"\u003cp data-path-to-node=\"1\"\u003e\u003cb data-path-to-node=\"1\" data-index-in-node=\"0\"\u003eProviding the high-performance backbone for major household systems, this 8 AWG NM-B Copper Building Wire is engineered for reliability and safety. Comprised of two insulated copper conductors and a dedicated bare ground, this cable is the industry standard for intermediate-load appliances, offering a perfect balance of high ampacity and the superior flexibility of soft-drawn copper.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"2\"\u003eWhy Choose 8\/3 NM-B Copper Building Wire?\u003c\/h4\u003e\n\u003cp data-path-to-node=\"3\"\u003eThis 2-conductor (plus ground) assembly is a critical component for residential renovations and new construction. Designed strictly for dry, interior locations, the \u003cb data-path-to-node=\"3\" data-index-in-node=\"165\"\u003eType NM-B\u003c\/b\u003e construction allows for efficient routing through wood-frame structures without the added expense of metal or PVC conduit, significantly accelerating the rough-in process.\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\"\u003ePremium Annealed Copper:\u003c\/b\u003e High-purity copper conductors ensure maximum electrical throughput with minimal heat generation, protecting the longevity of your appliances and home electrical system.\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\"\u003eInstaller-Friendly Pulling:\u003c\/b\u003e The smooth, black PVC outer jacket is formulated to minimize surface friction, allowing the cable to glide through bored studs and tight corners with ease.\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\"\u003eRedundant Safety Grounding:\u003c\/b\u003e Includes a full-sized bare copper grounding wire to provide a continuous, low-impedance path to the ground, ensuring maximum protection against electrical faults.\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\"\u003eMulti-Layer Insulation Technology:\u003c\/b\u003e Each conductor is protected by a high-grade PVC insulation and a tough nylon topcoat (THHN\/THWN-2), offering superior resistance to nicks, tears, and environmental stress.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"5\"\u003eTechnical Specifications: 8\/3 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 8 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 Black\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 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=\"6,5,0\"\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\"\u003eElectric Ranges \u0026amp; Ovens:\u003c\/b\u003e The primary choice for dedicated 40A circuits supplying high-wattage kitchen cooking equipment.\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\"\u003eLarge HVAC Systems:\u003c\/b\u003e Ideal for powering central air conditioning condenser units and residential heat pump systems.\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\"\u003eHot Tub \u0026amp; Spa Sub-Panels:\u003c\/b\u003e Frequently used for the interior portion of the run feeding hot tub disconnects or indoor sauna equipment.\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\"\u003eHeavy-Duty Power Tools:\u003c\/b\u003e A reliable solution for dedicated garage or workshop circuits serving welders, large compressors, and industrial-grade table saws.\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":53372885926202,"sku":"NMB8-3-250","price":939.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":53372885958970,"sku":"NMB8-3-500","price":1867.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":53372885991738,"sku":"NMB8-3-1K","price":3715.0,"currency_code":"USD","in_stock":true},{"title":"2500 ft. Spool","offer_id":53372886024506,"sku":"NMB8-3-2500","price":9240.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":53372886057274,"sku":"NMB8-3-FT","price":3.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0234\/9114\/files\/8-3-nm-b-black-jacket-copper-romex-cable.jpg?v=1777312006","url":"https:\/\/www.wireamerica.com\/products\/8-3-nm-b-copper-building-wire","provider":"Wire America ","version":"1.0","type":"link"}