Sea-Dog 18/2 AWG Marine Duplex Wire, 100 ft Red/Yellow
Sea-Dog 18/2 AWG Marine Duplex Wire, 100 ft Red/Yellow — Product description
Sea-Dog's 18/2 AWG duplex wire gives you a clean, corrosion-resistant run for the low-draw DC circuits on your boat. Tinned copper conductors, PVC insulation, red and yellow leads, and a flat bonded jacket that's easy to route and staple down. 100 feet on the spool, UL and ABYC certified.
Sea-Dog's 18/2 AWG duplex wire is the everyday feeder for the low-draw circuits on your boat. Nav lights, courtesy lights, gauges, bilge sensors, an accessory feed at the helm. If it doesn't pull much current, this is the wire that carries it. Two 18-gauge stranded conductors ride side by side in a flat, bonded jacket, so it's easy to route and lies flat behind a panel or along a stringer.
Here's what matters on the water: every strand is tinned copper. That thin coating of tin is what keeps salt air and bilge moisture from turning bare copper green and brittle over a couple of seasons. Bare wire corrodes from the cut end inward and you never see it until a light flickers. Tinned copper holds its conductivity and takes a crimp that stays tight. It's the difference between wiring you do once and wiring you chase down every spring.
The two leads are colored red and yellow, following the ABYC convention where red carries the positive and yellow serves as the DC negative return. That makes troubleshooting down the road a lot simpler for the next person at the helm, even if that person is you three years from now. The PVC insulation shrugs off fuel, oil, and the odd splash, and the flat encasement staples down clean without twisting.
You get 100 feet on the spool, enough to knock out several runs without splicing mid-circuit. And it's UL and ABYC certified, so it meets the standards a surveyor or insurer expects to see in a marine DC system. Match the gauge to your load and run length. 18 AWG is sized for low-amperage circuits, so step up to a heavier gauge for pumps, windlasses, or long high-current runs. For the small stuff, this is exactly the wire you want, and a spool aboard means you're ready for the next project too.
Key Features
- 18 AWG stranded conductors, sized for low-draw DC circuits like nav lights, courtesy lights, gauges, and sensors
- Tinned copper strands resist corrosion from salt air and bilge moisture and hold a crimp that stays tight
- Two-conductor duplex with red and yellow leads follows the ABYC DC color convention for easy troubleshooting
- Flat bonded encasement routes cleanly behind panels and staples down flat without twisting
- PVC insulation shrugs off fuel, oil, and moisture
- 100-foot spool covers several runs without splicing mid-circuit
- UL and ABYC certified for marine DC wiring
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 18/2 AWG Flat Duplex Marine Wire, 100 Foot Spool, Red/Yellow |
|---|---|
| Brand | Sea-Dog |
| Manufacturer Part Number | 8018222 |
| UPC | 035514804608 |
| Wire Gauge | 18 AWG |
| Conductor Count | 2 (Duplex) |
| Cable Type | Flat Encasement Duplex |
| Conductor Colors | Red / Yellow |
| Conductor Material | Tinned Copper |
| Insulation | PVC |
| Certification | UL and ABYC Certified |
| Spool Length | 100 Feet |
Frequently asked questions
What is 18/2 duplex wire used for?
It's sized for low-amperage DC circuits: nav and courtesy lights, gauges, electronics accessory feeds, and sensors. For higher-current loads like pumps or a windlass, step up to a heavier gauge.
Are the conductors tinned?
Yes. Both conductors are tinned copper, with each strand plated in tin so they resist the corrosion that eats bare copper in a salt-air or bilge environment.
What do the red and yellow wires mean?
They follow the ABYC DC color convention. Red carries the positive and yellow serves as the DC negative return, which keeps troubleshooting simple down the road.
Is this wire UL and ABYC certified?
Yes. It's UL and ABYC certified, so it meets the standards a surveyor or insurer expects to see in a marine DC system.
How much wire is on the spool?
You get 100 feet on the spool, enough to handle several runs without splicing in the middle of a circuit.
What does flat encasement mean?
The two insulated conductors are bonded side by side in a flat jacket, so the wire lies flat behind a panel or along a stringer and staples down without twisting.
