{"product_id":"4-0-stranded-bare-copper-wire-soft-drawn-7-strand","title":"4\/0 Stranded Bare Copper Wire, Soft Drawn, 7 Strand","description":"\u003cp data-path-to-node=\"1\"\u003e\u003cstrong\u003e\"Designed for maximum electrical performance, heavy-duty grounding, bonding, and primary power distribution, this 4\/0 Stranded Bare Copper wire is engineered for the highest-capacity infrastructure demands. Featuring soft-drawn (annealed) construction and a heavy-duty 7-strand layout, it provides the ultimate combination of structural ruggedness and high electrical mass, making it a reliable solution for utility substations, industrial facilities, and massive commercial grid systems.\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"2\"\u003e\u003cb data-path-to-node=\"2\" data-index-in-node=\"0\"\u003eWhy Professionals Choose 4\/0 AWG Stranded Bare Copper\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"3\"\u003eThis conductor is the definitive standard for industrial substation grounding grids, commercial service entrances, large multi-family building panels, and critical facility lightning protection networks. Stepping up to a \u003cb data-path-to-node=\"3\" data-index-in-node=\"221\"\u003e4\/0 gauge\u003c\/b\u003e provides an ultra-low-impedance, safe path to ground capable of clearing high-magnitude fault currents and severe lightning strikes without failing. Its heavy 7-strand concentric-lay layout uses thick, robust wires that maximize physical armor against backfill crushing and scraping during direct burial, while the high-purity copper guarantees a permanent, maintenance-free lifespan.\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\"\u003eMaximum Conductivity:\u003c\/b\u003e 99.9% pure, uninsulated copper delivers a massive, low-impedance path to ground to safely absorb high-amperage short circuits and lightning surges.\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\"\u003eSoft-Drawn (Annealed):\u003c\/b\u003e Despite its extreme thickness, the thermal annealing process relaxes the copper's crystalline matrix, ensuring the conductor remains highly workable for bending around lugs and layout routing.\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\"\u003eHeavy 7-Strand Ruggedness:\u003c\/b\u003e Engineered with seven thick individual copper strands, this layout provides exceptional tensile strength (over 6,400 lbs of breaking strength) and unmatched mechanical defense for direct burial or concrete encasement (Ufer grounds).\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\"\u003eInherent Environmental Shielding:\u003c\/b\u003e Bare copper natively fights off moisture, oxidation, and aggressive soil chemistry, removing the need for a protective jacket when buried or cast in stone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eTechnical Specifications: 4\/0 Stranded Bare Copper Wire \u003c\/b\u003e\u003c\/h4\u003e\n\u003ch4 data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eENGINEERING OVERVIEW\u003c\/b\u003e\u003c\/h4\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eConductor Size:\u003c\/b\u003e 4\/0\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eConstruction:\u003c\/b\u003e 7-Strand (Concentric-Lay)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003cb data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"\u003eTemper:\u003c\/b\u003e Soft-Drawn (Annealed)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,4,0\"\u003e\u003cb data-path-to-node=\"7,4,0\" data-index-in-node=\"0\"\u003eMaterial:\u003c\/b\u003e Bare Copper (Uninsulated)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,5,0\"\u003e\u003cb data-path-to-node=\"7,5,0\" data-index-in-node=\"0\"\u003eOverall Diameter:\u003c\/b\u003e 0.522 inches (13.25 mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,6,0\"\u003e\u003cb data-path-to-node=\"7,6,0\" data-index-in-node=\"0\"\u003eApprox. Weight:\u003c\/b\u003e 653.0 lbs per 1,000 ft (0.653 lb\/ft)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,7,0\"\u003e\u003cb data-path-to-node=\"7,7,0\" data-index-in-node=\"0\"\u003eDC Resistance at 20ºC:\u003c\/b\u003e 0.0499 Ohms\/1,000 ft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,8,0\"\u003e\u003cb data-path-to-node=\"7,8,0\" data-index-in-node=\"0\"\u003eRated Breaking Strength:\u003c\/b\u003e 6,455 lbs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,9,0\"\u003e\u003cb data-path-to-node=\"7,9,0\" data-index-in-node=\"0\"\u003eAmpacity Rating:\u003c\/b\u003e 480 Amps \u003ci data-path-to-node=\"7,9,0\" data-index-in-node=\"26\"\u003e(Based on 75°C conductor temp; 25°C ambient; 2ft.\/sec. wind in sun)\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,10,0\"\u003e\u003cb data-path-to-node=\"7,10,0\" data-index-in-node=\"0\"\u003eCompliance Standards:\u003c\/b\u003e ASTM B-3 (Soft\/Annealed), ASTM B-8 (Concentric-Lay), Federal Spec QQ-W-343\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eCommon 4\/0 bare copper applications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eIndustrial \u0026amp; Commercial Grounding Rings:\u003c\/b\u003e The master gauge standard for burying deep ground loops around data centers, massive hospitals, and heavy industrial facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003eSubstation Grid Meshes:\u003c\/b\u003e Essential for weaving primary subterranean safety grids and bonding multi-megawatt high-voltage utility transformers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eMain Commercial Service Entrances:\u003c\/b\u003e Connecting heavy-duty 600A, 800A, and 1200A main service electrical distribution panels safely to ground.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\"\u003e\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eHigh-Capacity Lightning Protection:\u003c\/b\u003e Serving as the uninsulated, high-mass down-conductor backbone for commercial skyscrapers, communication masts, and industrial towers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,4,0\"\u003e\u003cb data-path-to-node=\"9,4,0\" data-index-in-node=\"0\"\u003eRenewable Energy Sub-Feeds:\u003c\/b\u003e Extensively used for long-run, critical bonding of massive structural framing racks, solar inverter skids, and wind turbine grounding terminals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"10\"\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" 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\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Wire America","offers":[{"title":"250 ft. Spool","offer_id":52006820446522,"sku":"BCSTR4\/0-7-250","price":0.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":52006820479290,"sku":"BCSTR4\/0-7-500","price":0.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":52006820512058,"sku":"BCSTR4\/0-7-1K","price":0.0,"currency_code":"USD","in_stock":true},{"title":"2500 ft. Spool","offer_id":52006820544826,"sku":"BCSTR4\/0-7-2500","price":0.0,"currency_code":"USD","in_stock":true},{"title":"5000 ft. Spool","offer_id":52006820577594,"sku":"BCSTR4\/0-7-5K","price":0.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":52006820610362,"sku":"BCSTR4\/0-7-FT","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/0234\/9114\/files\/Stranded_Bare_Copper_A_4a219bb7-4e44-471a-a8b2-c21c4ca5b26f.jpg?v=1760627119","url":"https:\/\/www.wireamerica.com\/products\/4-0-stranded-bare-copper-wire-soft-drawn-7-strand","provider":"Wire America ","version":"1.0","type":"link"}