{"product_id":"southwire-10-3-nm-b-romex-cable","title":"Southwire 10\/3 NM-B (Romex) Cable","description":"\u003cp\u003eSouthwire 10\/3 NM-B (Romex) Cable\u003c\/p\u003e\u003c!-- registry-additional-specifications:start --\u003e\u003csection style=\"margin:28px 0 0;\"\u003e\u003ch2 style=\"margin:0 0 14px;color:#1F2937;font-size:1.25rem;line-height:1.3;font-weight:700;\"\u003eAdditional specifications\u003c\/h2\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Installation\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eIndividual conductor installation restrictions\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eIndividual conductors are not listed or marked as THHN or another NEC-recognized conductor type and must not be installed apart from the complete Type NM-B cable. Conductors routed inside panelboards or boxes without the jacket for termination are considered part of the complete cable.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003ePermitted installation locations\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eSuitable for exposed or concealed work in dry locations; may be run in masonry-block or tile-wall air voids only where the walls are not wet or damp.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eMinimum bending radius\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e0.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Compliance\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eRoHS specification\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eRoHS-2 (European Directive 2011\/65\/EU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eConductor wire specification\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eASTM B3 — soft or annealed copper wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eNOM safety standard\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eNOM-063-SCFI — Electrical Products – Conductors – Safety Requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eUL product standard\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eUL 719 — Nonmetallic-Sheathed Cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eFederal specification\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eA-A-59544\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Application\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eTypical application\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003ePrimarily used in residential wiring as branch circuits for outlets, switches, and other loads.\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Electrical\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAllowable ampacity and application limit\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e30 A at 60°C and 40 A at 90°C per Table 2. Use ampacity is limited to the 60°C-conductor basis; NEC 240.4(D) limits overcurrent protection for 10 AWG copper to 30 A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eIndividual conductor insulation temperature rating\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e90°C, for terminations in lighting fixtures\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAmpacity basis\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eBased on 2023 NEC Table 310.16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAllowable ampacity at 90°C (table value)\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eInductive reactance\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e0.05 at 60 Hz; basis is non-ferrous conduit with one-diameter center-to-center spacing. Ω\/1000 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eVoltage rating\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e600 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAC resistance at 75°C\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e1.291 Ω\/1000 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eNEC 240.4(D) overcurrent-protection limitation\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eAllowable ampacity at 60°C\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eDC resistance at 25°C\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003e1.04 Ω\/1000 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 18px;border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;background:#FFFFFF;\"\u003e\n\u003ch3 style=\"margin:0;padding:12px 14px;background:#757575;color:#FFFFFF;font-size:1rem;line-height:1.35;font-weight:700;\"\u003eAdditional specifications · Construction\u003c\/h3\u003e\n\u003cdiv style=\"width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;border-spacing:0;font-family:inherit;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eConductor insulation construction\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003ePVC insulation with a nylon sheath\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eJacket material\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003ePolyvinyl chloride (PVC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eBinder material\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eKraft paper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F9FAFB;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003eGround wire wrap\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eKraft paper wrap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003cth scope=\"row\" style=\"width:42%;padding:12px 14px;border-top:1px solid #E5E7EB;color:#374151;text-align:left;vertical-align:top;font-size:0.92rem;line-height:1.45;font-weight:600;\"\u003ePhase-conductor insulation color code\u003c\/th\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #E5E7EB;color:#4B5563;vertical-align:top;font-size:0.92rem;line-height:1.45;\"\u003eBlack, red, and white\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003c!-- registry-additional-specifications:end --\u003e","brand":"Southwire","offers":[{"title":"Per ft","offer_id":68229767757935,"sku":"10\/3 ROMEX PER FOOT","price":3.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8970\/4303\/files\/excel-sku-10-3-romex-per-foot-00981ae9.jpg?v=1794011306","url":"https:\/\/excel-lighting-electrical-supply-co.myshopify.com\/products\/southwire-10-3-nm-b-romex-cable","provider":"Excel Lighting \u0026 Electrical Supply, Co.","version":"1.0","type":"link"}