{"product_id":"sea-dog-12-awg-red-marine-primary-wire-400-ft-spool","title":"Sea-Dog 12 AWG Red Tinned Copper Marine Primary Wire, 400 ft Spool","description":"\u003cp class=\"nvn-hero\"\u003eSea-Dog's 12 AWG marine primary wire is a single stranded tinned copper conductor in a red jacket, wound on a 400 foot spool. It's built for 12V DC circuits, carries both UL and ABYC certification, and it's the gauge you reach for on lighting, electronics, and small pump runs.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThis is the wire you reach for when you want a boat circuit to still work five seasons from now. Sea-Dog's 12 AWG marine primary wire is a single stranded conductor of tinned copper in a red insulation jacket, wound onto a 400 foot spool. It's built for the 12V DC world most of us live in on the water, and it carries both the UL listing and ABYC certification that surveyors and inspectors want to see.\u003c\/p\u003e\n\u003cp\u003eThe tinning is the whole point. Every copper strand is coated in tin, so when salt air and bilge moisture find their way in, and they always do, the copper underneath doesn't turn green and brittle the way bare wire does. We've pulled apart enough failed connections over the years to tell you that untinned wire in a marine bilge is a slow-motion problem. This wire is the fix. It's the same reason ABYC wants tinned conductors on boats in the first place.\u003c\/p\u003e\n\u003cp\u003eA 400 foot spool is a serious amount of wire. For a full rewire on a 30 to 40 foot boat you'll have plenty, and honestly you might have some left over. If you only need a short run for one project, this spool is more than you'll use in a weekend. So it's really aimed at the boater who's rewiring a whole system, a shop that does regular installs, or anyone who'd rather buy once and keep a reel on the shelf for the next job.\u003c\/p\u003e\n\u003cp\u003eWhat do you actually run on 12 AWG? Think cabin and courtesy lighting, electronics feeds, small bilge and washdown pumps, accessory circuits, that kind of thing. It's a great general-purpose gauge for the mid-size DC loads on most boats. What it's not for is the heavy stuff. A windlass, a bow thruster, or a big inverter pulls far more current than 12 AWG should carry, so size those runs up with heavier cable. Always match the gauge to the load and the length of the run using the ABYC ampacity tables. A long run needs a bigger conductor than a short one for the same load.\u003c\/p\u003e\n\u003cp\u003eA few things we've learned installing tinned primary wire. Tinned strands pull through conduit and loom nicely, a little easier than bare copper, but they can fray at a cut if your strippers are dull, so use a sharp, properly sized stripper and don't crush the strands. The tinning also means the cut ends will wick moisture if you leave them open, which can hide corrosion inside an otherwise good-looking run. Seal every termination. A marine-grade adhesive-lined heat-shrink connector, crimped with a ratchet crimper so it passes the ABYC tug test, is the right way to finish an end. Don't trust a hardware-store crimp on a boat.\u003c\/p\u003e\n\u003cp\u003eOne more real-world note. Red insulation looks great on day one, but any jacket that lives in direct sun will fade and chalk over time. For runs that sit out on deck or in an open console, drop them into split loom or conduit to protect the jacket and keep the color. And because this wire comes off a spool, it holds a bit of a curve when you first unroll it. Pull off what you need and straighten it out before you route it, and it'll lie in much more cleanly.\u003c\/p\u003e\n\u003cp\u003eThe UL and ABYC marks aren't just letters on a spool. They tell an inspector or a surveyor that the wire meets recognized marine standards for stranding, insulation, and temperature rating. That matters if you ever need a survey signed off, and it matters for your own peace of mind. Buy the good wire once, install it right, and you won't be chasing gremlins in the dark two years from now.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e12 AWG stranded conductor sized for general 12V DC circuits like lighting, electronics, and small pumps\u003c\/li\u003e\n  \u003cli\u003eTinned copper strands resist salt and bilge corrosion far better than bare copper\u003c\/li\u003e\n  \u003cli\u003eRed insulation jacket for clear polarity and circuit identification\u003c\/li\u003e\n  \u003cli\u003e400 foot spool covers a full mid-size boat rewire or keeps a reel on the shop shelf\u003c\/li\u003e\n  \u003cli\u003eUL listed and ABYC certified to recognized marine wiring standards for survey sign-off\u003c\/li\u003e\n  \u003cli\u003eSingle stranded primary conductor, easy to route through conduit and split loom\u003c\/li\u003e\n  \u003cli\u003eFlexible stranding pulls cleanly through tight runs and terminates well with marine crimp connectors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Sea-Dog reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat circuits is 12 AWG wire right for?\u003c\/summary\u003e\n    \u003cp\u003e12 AWG is a great general-purpose gauge for mid-size 12V DC loads: cabin and courtesy lighting, electronics feeds, small bilge and washdown pumps, and accessory circuits. Always size the gauge to your actual load and run length using the ABYC ampacity tables, since a longer run needs a heavier conductor for the same load.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy does tinned copper matter on a boat?\u003c\/summary\u003e\n    \u003cp\u003eEvery strand is coated in tin, so salt air and bilge moisture can't corrode the copper underneath the way they attack bare wire. That's why ABYC wants tinned conductors on boats. It's the difference between a connection that lasts and one that turns green and brittle.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow long is the spool?\u003c\/summary\u003e\n    \u003cp\u003eIt's a 400 foot spool. That's enough for a full rewire on a 30 to 40 foot boat with some left over, so it suits a whole-system rewire or a shop that keeps a reel on the shelf for regular installs.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this single-conductor or multi-conductor wire?\u003c\/summary\u003e\n    \u003cp\u003eIt's a single stranded conductor, also called primary wire. You run individual color-coded conductors per circuit. For AC shore power or anything that needs multiple conductors in one jacket, you'd want duplex or triplex cable instead.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use this for a windlass or bow thruster?\u003c\/summary\u003e\n    \u003cp\u003eNo. A windlass, bow thruster, or large inverter pulls far more current than 12 AWG should carry. Size those high-draw runs up with heavier cable. This gauge is meant for lighting, electronics, and small pumps.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat connectors and tools should I use to terminate it?\u003c\/summary\u003e\n    \u003cp\u003eUse a sharp, properly sized stripper so you don't fray or crush the strands, then finish each end with a marine-grade adhesive-lined heat-shrink connector crimped with a ratchet crimper. That combination passes the ABYC tug test and seals the connection against moisture.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need to seal the cut ends?\u003c\/summary\u003e\n    \u003cp\u003eYes. Tinned strands will wick moisture if you leave a cut end open, and that can hide corrosion inside a run that looks fine from the outside. Seal every termination with adhesive-lined heat-shrink.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill the red jacket fade in the sun?\u003c\/summary\u003e\n    \u003cp\u003eAny insulation that lives in direct sunlight will fade and chalk over time. For exposed runs on deck or in an open console, drop the wire into split loom or conduit to protect the jacket and keep the color.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat do the UL and ABYC marks mean?\u003c\/summary\u003e\n    \u003cp\u003eThey tell an inspector or surveyor that the wire meets recognized marine standards for stranding, insulation, and temperature rating. That matters for a survey sign-off and for your own peace of mind.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eStranded Conductor; 12 Gauge; Red; 400 Foot Spool; Tinned Copper Conductor; UL\/ ABYC Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSea-Dog\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e8012026\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e035514801300\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWire Gauge\u003c\/th\u003e\n\u003ctd\u003e12 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWire Type\u003c\/th\u003e\n\u003ctd\u003ePrimary Wire\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConductor Construction\u003c\/th\u003e\n\u003ctd\u003eStranded\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConductor Material\u003c\/th\u003e\n\u003ctd\u003eTinned Copper\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInsulation Color\u003c\/th\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSpool Length\u003c\/th\u003e\n\u003ctd\u003e400 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eUL Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eStandards Compliance\u003c\/th\u003e\n\u003ctd\u003eABYC Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What circuits is 12 AWG wire right for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"12 AWG is a great general-purpose gauge for mid-size 12V DC loads: cabin and courtesy lighting, electronics feeds, small bilge and washdown pumps, and accessory circuits. Always size the gauge to your actual load and run length using the ABYC ampacity tables, since a longer run needs a heavier conductor for the same load.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why does tinned copper matter on a boat?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Every strand is coated in tin, so salt air and bilge moisture can't corrode the copper underneath the way they attack bare wire. That's why ABYC wants tinned conductors on boats. It's the difference between a connection that lasts and one that turns green and brittle.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How long is the spool?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a 400 foot spool. That's enough for a full rewire on a 30 to 40 foot boat with some left over, so it suits a whole-system rewire or a shop that keeps a reel on the shelf for regular installs.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this single-conductor or multi-conductor wire?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a single stranded conductor, also called primary wire. You run individual color-coded conductors per circuit. For AC shore power or anything that needs multiple conductors in one jacket, you'd want duplex or triplex cable instead.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use this for a windlass or bow thruster?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. A windlass, bow thruster, or large inverter pulls far more current than 12 AWG should carry. Size those high-draw runs up with heavier cable. This gauge is meant for lighting, electronics, and small pumps.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What connectors and tools should I use to terminate it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Use a sharp, properly sized stripper so you don't fray or crush the strands, then finish each end with a marine-grade adhesive-lined heat-shrink connector crimped with a ratchet crimper. That combination passes the ABYC tug test and seals the connection against moisture.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need to seal the cut ends?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Tinned strands will wick moisture if you leave a cut end open, and that can hide corrosion inside a run that looks fine from the outside. Seal every termination with adhesive-lined heat-shrink.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will the red jacket fade in the sun?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Any insulation that lives in direct sunlight will fade and chalk over time. For exposed runs on deck or in an open console, drop the wire into split loom or conduit to protect the jacket and keep the color.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What do the UL and ABYC marks mean?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"They tell an inspector or surveyor that the wire meets recognized marine standards for stranding, insulation, and temperature rating. That matters for a survey sign-off and for your own peace of mind.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Sea-Dog","offers":[{"title":"Default Title","offer_id":45057385758813,"sku":"2008349","price":137.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_f0942e1f-631e-4642-b648-237b7d0dddc0.png?v=1789479796","url":"https:\/\/nvnmarine.com\/products\/sea-dog-12-awg-red-marine-primary-wire-400-ft-spool","provider":"NVN Marine","version":"1.0","type":"link"}