{"product_id":"sea-dog-12-2-awg-duplex-marine-wire-250-ft-black-red","title":"Sea-Dog 12\/2 AWG Flat Duplex Marine Wire, 250 ft, Black\/Red","description":"\u003cp class=\"nvn-hero\"\u003eThis is Sea-Dog's 12\/2 AWG duplex marine wire on a 250-foot spool, the flat black-and-red boat cable you reach for when you're wiring 12-volt circuits and want them to last. Tinned copper conductors under PVC insulation, UL and ABYC certified. It's built to shrug off the salt, damp, and vibration that kill ordinary automotive wire.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eSea-Dog's 8012204 is 12-gauge, two-conductor duplex cable, and it comes on a 250-foot spool. That's enough wire to rewire most of a 25 to 30 foot boat and still have some left on the reel. The two conductors, one black and one red, ride side by side inside a single flat PVC jacket, so you pull one cable instead of fishing two loose wires through every chase and bulkhead.\u003c\/p\u003e\n\u003cp\u003eThe reason we stock the tinned version and not plain copper comes down to what happens on a boat over time. Bare copper wicks moisture, corrodes, and turns green and brittle right where you can't see it, up under the gunwale or behind the panel. Every strand in this cable is tinned, coated in a thin layer of tin that keeps salt air and bilge damp from eating the conductor. You get better long-term conductivity and terminals that stay tight instead of crumbling after a couple of seasons.\u003c\/p\u003e\n\u003cp\u003eIt carries both the UL and ABYC marks, which is what a surveyor wants to see and what the standards call for on a boat. The PVC insulation stays flexible, the conductors are finely stranded so the cable bends around corners without fighting you, and the flat profile lays neat against a stringer or inside a conduit run.\u003c\/p\u003e\n\u003cp\u003eWhere does 12 AWG fit? It's the workhorse gauge for mid-current 12-volt circuits. Think bilge pumps, livewell pumps, nav and anchor lights on a longer run, accessory panels, trim tabs, and a lot of the wiring behind a helm. If you're running something hungry like a windlass or a big inverter, step up to a heavier gauge. If it's just an LED courtesy light a few feet away, 16 gauge is plenty. Twelve-two duplex is the middle ground you'll use most.\u003c\/p\u003e\n\u003cp\u003eDuplex layout is a real convenience when you're the one tracing a fault two years later. Positive and negative stay paired the whole run, so there's no guessing which loose wire goes where behind the dash. Keep red as your positive and black as your ground and the whole boat stays consistent.\u003c\/p\u003e\n\u003cp\u003eA few things we've learned rigging this stuff. The flat jacket pulls through tight chases easier than round cable, but don't crank it around a sharp corner. Give it a gentle radius so the jacket doesn't kink. If you're fishing it past a raw fiberglass edge, slide some split loom or a wrap of tape over that edge first so the outer PVC doesn't get sliced. And if you're wiring in the cold, let the spool warm up indoors for a while first. PVC stiffens up when it's cold and it's a lot friendlier to work with at room temperature.\u003c\/p\u003e\n\u003cp\u003eFor terminations, do it right and you'll never think about it again. Adhesive-lined heat-shrink ring and butt connectors, crimped with a proper ratcheting tool, seal the connection against moisture. Bare crimps are where most 12-volt gremlins start, usually a season or two after the install when corrosion creeps into an unsealed joint. Size your fuse or breaker to protect the wire and the device it feeds. For a lot of common 12-volt accessory circuits on this gauge, people land somewhere in the 10 to 15 amp range, but always match the fuse to the load and the ABYC ampacity table for your run length and where the wire runs.\u003c\/p\u003e\n\u003cp\u003eOne honest note on the 250-foot spool. After you've cut your typical 30-something-foot runs, you'll usually have a useful remnant left over. Coil it flat rather than tight so the cable doesn't take a set, and it'll be ready for the next project. If any of the run lives in direct sun, get it into conduit or loom. The red and black do fade under years of UV, and covered wire simply lasts longer.\u003c\/p\u003e\n\u003cp\u003eBottom line, this is honest marine-grade duplex from a brand that's been making deck hardware and rigging gear for boaters a long time. If you want your 12-volt wiring done once and done right, tinned duplex like this is the standard the whole industry builds to.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e12\/2 AWG duplex construction: two 12-gauge conductors in one flat jacket, so you pull a single cable instead of two loose wires\u003c\/li\u003e\n  \u003cli\u003eTinned copper conductors: every strand is tin-coated to resist salt-air corrosion and keep terminals tight for years\u003c\/li\u003e\n  \u003cli\u003e250-foot spool: enough wire to handle a full rewire on most 25 to 30 foot boats with remnant to spare\u003c\/li\u003e\n  \u003cli\u003eFlat PVC encasement: lays neat against stringers and pulls through tight chases more easily than round cable\u003c\/li\u003e\n  \u003cli\u003eBlack and red conductors: keeps positive and negative paired the whole run so tracing circuits later is simple\u003c\/li\u003e\n  \u003cli\u003eUL and ABYC certified: meets the marine wiring standards surveyors look for\u003c\/li\u003e\n  \u003cli\u003eFinely stranded conductors: stay flexible and bend around corners without fighting you\u003c\/li\u003e\n  \u003cli\u003e12-gauge current capacity: sized for mid-load 12-volt circuits like bilge pumps, livewells, nav lights, and accessory panels\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 is 12\/2 AWG duplex wire used for?\u003c\/summary\u003e\n    \u003cp\u003eIt's the go-to gauge for mid-current 12-volt circuits on a boat. Bilge and livewell pumps, nav and anchor lights on longer runs, trim tabs, and accessory panels behind the helm are all typical jobs. For very high-draw gear like a windlass or large inverter you'd step up to a heavier gauge, and for a small LED a few feet away 16 gauge is plenty.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does 12\/2 mean?\u003c\/summary\u003e\n    \u003cp\u003eThe 12 is the wire gauge, 12 AWG, and the 2 is the number of conductors in the jacket. So you get two 12-gauge wires, one red and one black, bundled together in a single flat cable.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy tinned copper instead of plain copper?\u003c\/summary\u003e\n    \u003cp\u003eBare copper corrodes on a boat, wicking moisture and turning green and brittle where you can't see it. Every strand here is tin-coated, so it shrugs off salt air and bilge damp, keeps its conductivity, and holds terminals tight for years.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this wire UL and ABYC certified?\u003c\/summary\u003e\n    \u003cp\u003eYes. It carries both the UL and ABYC marks, which is what the marine standards call for and what a surveyor wants to see on your boat's wiring.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size fuse should I use with 12-gauge wire?\u003c\/summary\u003e\n    \u003cp\u003eSize the fuse to protect both the wire and the device it feeds, never larger than the wire's rated ampacity. Many common 12-volt accessory circuits on this gauge land in the 10 to 15 amp range, but always check the load's requirement and the ABYC ampacity table for your run length before you settle on a fuse.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow much boat will 250 feet wire?\u003c\/summary\u003e\n    \u003cp\u003ePlenty. On a typical 25 to 30 foot boat your individual runs are usually 30-something feet, so a 250-foot spool covers a full rewire and still leaves a useful remnant on the reel.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I run this wire in direct sunlight?\u003c\/summary\u003e\n    \u003cp\u003eThe PVC jacket holds up well, but years of UV will fade the red and black and shorten the jacket's life. Anywhere the wire sees direct sun, run it inside conduit or split loom and it'll last a lot longer.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat connectors work best with it?\u003c\/summary\u003e\n    \u003cp\u003eAdhesive-lined heat-shrink ring and butt connectors, crimped with a proper ratcheting tool. They seal the joint against moisture. Bare, unsealed crimps are where most 12-volt corrosion problems start a season or two down the road.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich conductor is positive?\u003c\/summary\u003e\n    \u003cp\u003eBy marine convention red is your positive and black is your ground or negative. Keeping that consistent across the whole boat makes future troubleshooting far easier.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow sharply can I bend it?\u003c\/summary\u003e\n    \u003cp\u003eGive it a gentle radius. The flat jacket pulls through tight spaces well, but a hard, sharp bend can kink the jacket. If you're working in cold weather, warm the spool up indoors first so the PVC stays flexible.\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\u003eSea-Dog 12\/2 AWG Flat Duplex Marine Wire, 250 ft, Black\/Red\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\u003e8012204\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e035514802321\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWire Gauge\u003c\/th\u003e\n\u003ctd\u003e12\/2 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNumber of Conductors\u003c\/th\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e250 feet\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\u003c\/th\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCable Construction\u003c\/th\u003e\n\u003ctd\u003eFlat Duplex Encasement\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConductor Colors\u003c\/th\u003e\n\u003ctd\u003eBlack \/ Red\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eUL, ABYC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCable Type\u003c\/th\u003e\n\u003ctd\u003eMarine Duplex Boat Cable\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 is 12\/2 AWG duplex wire used for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's the go-to gauge for mid-current 12-volt circuits on a boat. Bilge and livewell pumps, nav and anchor lights on longer runs, trim tabs, and accessory panels behind the helm are all typical jobs. For very high-draw gear like a windlass or large inverter you'd step up to a heavier gauge, and for a small LED a few feet away 16 gauge is plenty.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does 12\/2 mean?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The 12 is the wire gauge, 12 AWG, and the 2 is the number of conductors in the jacket. So you get two 12-gauge wires, one red and one black, bundled together in a single flat cable.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why tinned copper instead of plain copper?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Bare copper corrodes on a boat, wicking moisture and turning green and brittle where you can't see it. Every strand here is tin-coated, so it shrugs off salt air and bilge damp, keeps its conductivity, and holds terminals tight for years.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this wire UL and ABYC certified?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It carries both the UL and ABYC marks, which is what the marine standards call for and what a surveyor wants to see on your boat's wiring.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size fuse should I use with 12-gauge wire?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Size the fuse to protect both the wire and the device it feeds, never larger than the wire's rated ampacity. Many common 12-volt accessory circuits on this gauge land in the 10 to 15 amp range, but always check the load's requirement and the ABYC ampacity table for your run length before you settle on a fuse.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How much boat will 250 feet wire?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Plenty. On a typical 25 to 30 foot boat your individual runs are usually 30-something feet, so a 250-foot spool covers a full rewire and still leaves a useful remnant on the reel.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I run this wire in direct sunlight?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The PVC jacket holds up well, but years of UV will fade the red and black and shorten the jacket's life. Anywhere the wire sees direct sun, run it inside conduit or split loom and it'll last a lot longer.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What connectors work best with it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Adhesive-lined heat-shrink ring and butt connectors, crimped with a proper ratcheting tool. They seal the joint against moisture. Bare, unsealed crimps are where most 12-volt corrosion problems start a season or two down the road.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Which conductor is positive?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"By marine convention red is your positive and black is your ground or negative. Keeping that consistent across the whole boat makes future troubleshooting far easier.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How sharply can I bend it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Give it a gentle radius. The flat jacket pulls through tight spaces well, but a hard, sharp bend can kink the jacket. If you're working in cold weather, warm the spool up indoors first so the PVC stays flexible.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Sea-Dog","offers":[{"title":"Default Title","offer_id":45000443297885,"sku":"2007884","price":215.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_c2860681-3e87-4a15-b5b5-80714dd587a4.png?v=1788744087","url":"https:\/\/nvnmarine.com\/products\/sea-dog-12-2-awg-duplex-marine-wire-250-ft-black-red","provider":"NVN Marine","version":"1.0","type":"link"}