Sea-Dog 12 AWG Tinned Copper Primary Wire | 100 ft Red
Sea-Dog 12 AWG Tinned Copper Primary Wire | 100 ft Red — Product description
Every boat wiring job eventually calls for a spool of good primary wire, and this is the red 12-gauge you reach for on positive DC runs. It's stranded tinned copper, so it flexes with the hull and shrugs off the corrosion that kills solid automotive wire. A hundred feet on the spool covers most rewires with plenty to spare.
This is Sea-Dog's 12-gauge primary wire in red, wound onto a 100-foot spool. If you've done any wiring on a boat, you know why the color matters. Red is the one you run to the positive side, and having a full spool on the shelf means you're not splicing three short leftovers together to reach the helm.
What makes it marine wire and not the stuff off the auto-parts rack is the conductor. It's tinned copper, stranded. Every one of those fine copper strands wears a thin coat of tin, and that coating is what stands between your wiring and the slow green corrosion that creeps up bare copper in a salt-air bilge. Solid automotive wire work-hardens and cracks where it flexes. Stranded wire bends with the boat and takes the vibration without fatiguing. The PVC insulation seals the whole run against moisture.
Twelve gauge is the workhorse size for most of what you add to a boat: bilge pumps, nav and courtesy lights, a stereo feed, livewell pumps, the power lead to a fish finder or chartplotter. It's heavy enough to carry those mid-size loads over a typical run without a meaningful voltage drop, and thin enough to pull through a rigging tube or a crowded chase without a fight.
A word on picking gauge: match it to the load and the length of the run, not just what fits the terminal. If you're feeding a windlass, a thruster, or an inverter, you'll want to step up to heavier wire. But for accessory circuits and the everyday rewire, 12 AWG red is what most of these jobs call for.
One hundred feet is enough to rewire a small center console top to bottom, or to keep on hand for the odd repair and addition that always comes up mid-season. Pair it with the matching black or yellow for your negative returns and you've got both sides of the circuit covered.
Key Features
- 12 AWG stranded conductor, sized for bilge pumps, lighting, and electronics feeds
- Tinned copper strands resist the corrosion that eats bare copper in salt air
- Stranded core flexes with the hull and shrugs off vibration without fatiguing
- PVC insulation seals the run against moisture
- Red jacket for clean, easy-to-trace positive DC runs
- 100-foot spool covers a full small-boat rewire with wire to spare
Why Buy from NVN Marine
- Authorized Sea-Dog reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Stranded Conductor; 12 Gauge; Red; 100 Foot Spool; Tinned Copper Conductor/ PVC Insulation |
|---|---|
| Brand | Sea-Dog |
| Manufacturer Part Number | 8012022 |
| UPC | 035514801270 |
| Wire Gauge | 12 AWG |
| Conductor | Tinned Copper |
| Conductor Type | Stranded |
| Insulation | PVC |
| Color | Red |
| Length | 100 Foot Spool |
Frequently asked questions
What is this wire used for?
It's primary wire for the positive side of low-voltage DC circuits on a boat: bilge pumps, nav and courtesy lights, stereo feeds, livewell pumps, and power leads to electronics. Red is the conventional color for the positive run.
Is the copper tinned?
Yes. Every strand is coated in tin, which is what keeps the wire from turning green and brittle in a damp, salt-air bilge. It's the reason you use marine wire instead of automotive wire on a boat.
Is it stranded or solid?
Stranded. The fine-strand core flexes with the hull and handles constant vibration without work-hardening and cracking the way solid wire does.
What loads can 12-gauge handle?
It's the go-to size for mid-size accessory circuits. Match the gauge to both the load and the length of the run, and step up to heavier wire for high-draw gear like a windlass, thruster, or inverter.
How much wire is on the spool?
100 feet. That's enough to rewire a small center console top to bottom, with plenty left over for the repairs that come up mid-season.
What color do I use for the ground side?
This red wire is for the positive side. Pair it with black or yellow from the same Sea-Dog line for your negative returns so both sides of the circuit match.
