Ancor 16/2 100' Spool Tinned Copper Duplex Black/Red

The Ancor 16/2 100' Spool Tinned Copper Duplex Black/Red is the marine electrician's and boater's trusted choice for reliable onboard wiring. Built to exceed UL 1426, ABYC, and U.S. Coast Guard charter boat standards (CFR Title 46), this duplex cable delivers the rugged performance demanded by both commercial vessels and serious recreational boats. Whether you're upgrading navigation systems, battery banks, or auxiliary circuits, this tinned copper wire handles saltwater exposure and the demanding marine environment without compromise.

Constructed with premium vinyl insulation over tinned copper conductors, the 16-gauge duplex configuration carries two independent circuits in a single, space-saving package—ideal for tight engine compartments and cabin wiring runs. Tinning protects the copper from corrosion, ensuring conductivity and longevity in salt spray, bilge moisture, and high-humidity conditions that would degrade bare copper in months. The 100-foot spool length eliminates unnecessary connectors and splices, reducing voltage drop and failure points on longer runs from battery to transom, thruster, or auxiliary systems.

This cable suits any boat owner, marine technician, or electrics upgrader working within U.S. Coast Guard–certified and ABYC-compliant systems. The duplex format is especially popular for bilge pump circuits, trim/tilt wiring, and split-load distribution where two independent circuits share a common run. Installation is straightforward with standard marine terminals; the 5.3-pound spool handles easily aboard or in the shop, and the black/red conductor pairing follows ABYC polarity conventions for negative and positive circuits. Keep a spool aboard for emergency repairs or have it ready for your next major refit.