{"product_id":"300-mcm-stranded-bare-copper-wire-soft-drawn-37-strand","title":"300 MCM Stranded Bare Copper Wire, Soft Drawn, 37 Strand","description":"\u003cp data-path-to-node=\"4\"\u003e\u003cstrong\u003e\"Engineered for commercial-grade grounding rings, heavy utility infrastructure, and critical lightning mitigation networks, this 300 MCM Stranded Bare Copper wire is built for extreme current capacities. Featuring soft-drawn (annealed) copper construction and a premium 37-strand configuration, it provides an exceptionally low-resistance path to earth, making it the definitive standard for industrial substations, massive grid arrays, and high-security facility grounding.\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"5\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"5\"\u003eWhy Professionals Choose 300 MCM 37-Strand Bare Copper\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"6\"\u003eWhen massive electrical projects demand a step above standard AWG or 250 MCM lines, \u003cb data-index-in-node=\"84\" data-path-to-node=\"6\"\u003e300 MCM (kcmil)\u003c\/b\u003e is a common choice of commercial estimators and field engineers. This massive conductor is optimized to instantly absorb, isolate, and safely dissipate severe short-circuit fault currents and major lightning surges before they reach sensitive equipment. By separating this thick copper mass into \u003cb data-index-in-node=\"444\" data-path-to-node=\"6\"\u003e37 individual concentric strands\u003c\/b\u003e, the cable maintains an exceptional balance of mechanical structural strength and workable field flexibility. It lays smoothly into trenches, shapes perfectly inside heavy-duty concrete foundations, and handles rough earth backfilling with ease.\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"7,0,0\"\u003eMassive Fault-Current Shielding:\u003c\/b\u003e 99.9% pure, uninsulated copper delivers a highly conductive, low-impedance path to ground to keep industrial grids fully protected.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"7,1,0\"\u003ePremium 37-Strand Engineering:\u003c\/b\u003e Multi-wire concentric lay maximizes physical surface area and breaking strength while ensuring the line remains pliable enough for clean routing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"7,2,0\"\u003eSoft-Drawn (Annealed) Temper:\u003c\/b\u003e The thermal treating process completely relaxes the copper's mechanical memory, making it highly workable for technicians wrapping ground bars or routing corners.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"7,3,0\"\u003eInherent Direct Burial Resistance:\u003c\/b\u003e Natively fights off the corrosive effects of subsurface moisture and harsh soil alkalinity without requiring a protective outer jacket.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"8\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"8\"\u003eTechnical Specifications: 300 MCM Stranded Bare Copper Wire (37-Strand)\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"9\"\u003eENGINEERING OVERVIEW\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,0,0\"\u003eConductor Size:\u003c\/b\u003e 300 MCM (300 kcmil)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,1,0\"\u003eCross-Sectional Area:\u003c\/b\u003e 300,000 Circular Mils\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,2,0\"\u003eConstruction:\u003c\/b\u003e 37-Strand \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,3,0\"\u003eTemper:\u003c\/b\u003e Soft-Drawn (Annealed)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,4,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,4,0\"\u003eMaterial:\u003c\/b\u003e Bare Copper (Uninsulated)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,5,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,5,0\"\u003eOverall Diameter:\u003c\/b\u003e 0.630 inches (16.00 mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,6,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,6,0\"\u003eApprox. Weight:\u003c\/b\u003e 926.3 lbs per 1,000 ft (0.926 lb\/ft)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,7,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,7,0\"\u003eDC Resistance at 20ºC:\u003c\/b\u003e \u003cmeta charset=\"utf-8\"\u003e0.03526 Ohms\/1,000 ft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,8,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,8,0\"\u003eRated Breaking Strength:\u003c\/b\u003e 9,160 lbs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,9,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,9,0\"\u003eAmpacity Rating:\u003c\/b\u003e 590 Amps \u003ci data-index-in-node=\"26\" data-path-to-node=\"10,9,0\"\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=\"10,10,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,10,0\"\u003eCompliance Standards:\u003c\/b\u003e ASTM B-1, ASTM B-2, 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=\"11\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"11\"\u003eCommon Applications for 300 MCM Bare Copper Wire\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"12,0,0\"\u003eCommercial Grounding Rings:\u003c\/b\u003e The definitive master size for burying deep earth loops around cloud data hubs, hospital wings, and major distribution centers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"12,1,0\"\u003eSubstation Grid Meshes:\u003c\/b\u003e Essential for tying down underground safety grounding grids and grounding high-voltage electrical utility transformers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"12,2,0\"\u003eHigh-Capacity Main Services:\u003c\/b\u003e Connecting massive 1200A, 1600A, and 2000A main service entrance panels safely to the primary building ground.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"12,3,0\"\u003eLightning Protection Down-Conductors:\u003c\/b\u003e Serving as the heavy, high-mass uninsulated backbone for tall communication masts, industrial plants, and utility towers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,4,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"12,4,0\"\u003eOverhead Power Distribution:\u003c\/b\u003e Leveraged in heavy utility work for low-impedance overhead electrical lines and robust messenger\/support applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"12,4,0\"\u003e \u003c\/p\u003e\n\u003chr data-path-to-node=\"13\"\u003e\n\u003cp data-path-to-node=\"14\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"14\"\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":52006821626170,"sku":"BCSTR300-37-250","price":0.0,"currency_code":"USD","in_stock":true},{"title":"500 ft. Spool","offer_id":52006821658938,"sku":"BCSTR300-37-500","price":0.0,"currency_code":"USD","in_stock":true},{"title":"1000 ft. Spool","offer_id":52006821691706,"sku":"BCSTR300-37-1K","price":0.0,"currency_code":"USD","in_stock":true},{"title":"2500 ft. Spool","offer_id":52006821724474,"sku":"BCSTR300-37-2500","price":0.0,"currency_code":"USD","in_stock":true},{"title":"5000 ft. Spool","offer_id":52006821757242,"sku":"BCSTR300-37-5K","price":0.0,"currency_code":"USD","in_stock":true},{"title":"By the Foot","offer_id":52006821790010,"sku":"BCSTR300-37-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_d7e74fdb-1367-4575-8f85-fbf03ada3305.jpg?v=1760627124","url":"https:\/\/www.wireamerica.com\/products\/300-mcm-stranded-bare-copper-wire-soft-drawn-37-strand","provider":"Wire America ","version":"1.0","type":"link"}