Sea-Dog 12/2 Duplex Marine Wire Red/Yellow 100ft | 8012222
Sea-Dog 12/2 Duplex Marine Wire Red/Yellow 100ft | 8012222 — Product description
Sea-Dog's 12/2 AWG flat duplex is the wire you reach for when you're running a pair of DC circuits and want it done to spec. Tinned copper, PVC insulation, red and yellow conductors, 100 feet on the spool. UL and ABYC certified so it passes survey without a second look.
This is Sea-Dog's 12/2 AWG flat duplex, sold as a 100-foot length. Two 12-gauge conductors run side by side in a single flat jacket, one red and one yellow. That color pairing is no accident. Yellow is the ABYC standard for DC negative and red for DC positive, so when you wire in bilge pumps, cabin lights, accessory panels, or livewell circuits, the run reads correctly to the next person who opens the panel. Nothing to guess at a year from now.
The conductors are tinned copper, not bare. On a boat that matters more than it does anywhere else. Salt air and bilge moisture chew through bare copper strands from the ends inward, and you end up with green corrosion creeping up under the insulation and voltage drop you can't explain. Tinned strands shrug that off. It's the difference between a run you do once and a run you're chasing down in three seasons.
Twelve gauge is a good middle-of-the-road size. It'll comfortably handle most accessory loads on boats under about 30 feet, and the flat duplex jacket makes it easy to run through tight chases, staple along a stringer, or snug behind a headliner without the two conductors wandering apart. The PVC insulation is abrasion resistant and stays flexible in the cold, so it won't crack when you're pulling wire in a chilly spring fit-out.
The 100-foot length is the practical size for a re-wire or a new install where you've got several circuits to feed. Buy it once, cut what each run needs, keep the rest on the spool for the next project. And because it carries both UL and ABYC certification, it's the wire you want in the boat if it ever goes across a surveyor's desk or an insurance inspection.
One note: this is two-conductor duplex, not triplex. If you need a dedicated safety ground alongside your positive and negative, that's a three-conductor run and this isn't it. For straight positive-and-negative DC circuits, though, this is exactly right.
Key Features
- 12 AWG conductors handle most DC accessory loads on boats under roughly 30 feet
- Tinned copper strands resist the corrosion that eats bare copper in salt air and bilge damp
- Red and yellow conductors follow the ABYC DC color code, red positive and yellow negative
- Flat duplex jacket runs clean through tight chases and stays put along a stringer
- PVC insulation is abrasion resistant and stays flexible in cold-weather fit-outs
- 100-foot length feeds several circuits from one spool for a re-wire or new build
- UL and ABYC certified, so it passes survey and insurance inspection
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 | Sea-Dog 12/2 AWG Flat Duplex Marine Wire, Red/Yellow, 100 ft |
|---|---|
| Brand | Sea-Dog |
| Manufacturer Part Number | 8012222 |
| UPC | 035514802338 |
| Wire Gauge | 12 AWG |
| Conductor Count | 2 (Duplex) |
| Length | 100 Feet |
| Conductor Colors | Red / Yellow |
| Conductor Material | Tinned Copper |
| Insulation | PVC |
| Construction | Flat Encasement |
| Certification | UL / ABYC |
Frequently asked questions
What does 12/2 mean on this wire?
It's two 12-gauge conductors in one flat jacket. The '12' is the wire gauge and the '2' is the conductor count. That's a duplex cable, positive and negative in a single run.
Why are the conductors red and yellow?
That's the ABYC DC color code. Red is DC positive and yellow is DC negative. Using it keeps your wiring readable and inspection-friendly instead of guessing which conductor is which down the line.
Is the copper tinned?
Yes, both conductors are tinned copper. On a boat that's what you want. Tinning keeps salt air and bilge moisture from corroding the strands and causing voltage drop over time.
What can I wire with 12 gauge?
Twelve gauge suits most accessory circuits, bilge pumps, cabin and courtesy lights, accessory panels, livewell pumps. For the right length of run and the current draw, check an ABYC ampacity chart to confirm the gauge before you commit.
Is this the same as triplex?
No. This is two-conductor duplex, positive and negative. Triplex adds a third conductor for a dedicated ground. If you need three conductors, this isn't the one.
How long is the spool?
It's a 100-foot length. That's enough to feed several circuits on a typical re-wire, so you cut what each run needs and keep the rest for later.
