Ancor 14/2 250ft Spool Tinned Copper Duplex Black/Red

The Ancor 14/2 250ft Spool Tinned Copper Duplex Black/Red marine-grade electrical wire is the backbone of reliable onboard electrical systems for serious boaters and maritime professionals. Whether you're wiring a new console, replacing corroded runs, or building a complete electrical harness, this duplex cable delivers the durability and safety standards demanded by modern marine environments. Built to exceed UL 1426, ABYC, and US Coast Guard (CFR Title 46) certification requirements, this wire is engineered for saltwater exposure, vibration, and the demanding conditions that separate weekend cruisers from expedition-ready vessels.

The 14-gauge tinned copper conductors resist corrosion far better than bare copper, a critical advantage when saltwater and galvanic action are constant threats to electrical integrity. The duplex configuration—black and red insulation paired together—streamlines installation and color-coding for positive and negative runs, reducing wiring errors and troubleshooting time. Premium vinyl insulation rated for the marine environment resists UV degradation, oil, and fuel exposure while maintaining flexibility even in cold-water conditions. The 250-foot spool (15 lbs) provides ample length for most single-engine installations or substantial sections of larger multi-engine systems, eliminating the need for mid-run splices in critical power circuits.

This Ancor duplex wire is ideal for battery banks, alternator charging circuits, main distribution panels, and any 12V or 24V DC system where corrosion resistance and code compliance are non-negotiable. Experienced boaters choose tinned copper for its longevity—especially on vessels stored in humid climates or left in salt water year-round. The dual-conductor design works equally well for new builds and retrofit upgrades, and the generous spool length means fewer connections and joints to fail over time. Compatible with standard marine connectors and bus bars, it integrates seamlessly into existing ABYC-compliant systems.