Ancor tinned copper marine wire 12 AWG (3mm²) 100ft — black, ultra-flexible Type 3, vinyl-insulated

Ancor 106010 is a 100-foot spool of 12 AWG (3mm²) tinned-copper marine primary wire with ultra-flexible Type 3 stranding and premium vinyl insulation for corrosion- and abrasion-resistant electrical runs.

Built for boats, harsh outdoor equipment, and any installation exposed to moisture, vibration, or salt air, this black 12 AWG wire combines fine tinned copper strands with a durable, weather-resistant jacket. The tinning improves corrosion resistance and electrical longevity in wet or salty environments, while the flexible stranding and high-temperature vinyl insulation make routing through tight spaces and engine bays easier and safer. The cable meets or exceeds UL 1426, US Coast Guard CFR Title 46 for charter boats, and ABYC standards for marine electrical systems.

How does this wire hold up in marine or corrosive environments?

The wire uses tinned copper strands that resist corrosion and electrolysis far better than bare copper in saltwater or humid conditions. The vinyl jacket is formulated to withstand salt spray, battery acid, oil, gasoline and UV sunlight, protecting the conductor and insulation integrity.

• Tinned copper stranding reduces oxidation and extends service life
• Insulation resists salt water, battery acid and gasoline
• UV-resistant jacket prevents sun-related degradation

Will this cable stay flexible in cold or high-heat areas?

Yes — the proprietary vinyl insulation remains flexible down to -40°F (-40°C) and retains its rated properties at elevated temperatures. The insulation ratings are 600 volts, 105°C dry and 75°C wet, giving predictable performance across a wide temperature range common in engine compartments and outdoor installations.

• Flexible Type 3 stranding minimizes fatigue from vibration
• Insulation stays pliable at -40°F/-40°C
• Temperature rated: 105°C dry / 75°C wet

How easy is it to install and terminate this 12 AWG wire?

The ultra-flexible stranding allows the wire to bend and route through tight conduits and around engine components without breaking, and the 12 AWG gauge is a common size for many DC circuits aboard boats and RVs. Its consistent insulation thickness and flexibility simplify stripping and crimping for secure terminations with heat-shrink or marine-grade connectors.

• Type 3 stranding improves bend radius and fatigue resistance
• Standard 12 AWG size for battery, accessory, and lighting circuits
• Works with common marine crimp terminals and heat-shrink boots

Does this product meet industry safety and marine standards?

Yes — the Ancor 106010 meets rigorous marine and electrical standards to ensure reliable, code-compliant installs. It surpasses UL 1426 and complies with US Coast Guard CFR Title 46 for charter boats and ABYC recommendations, making it suitable for regulated marine electrical systems.

• Exceeds UL 1426 requirements for marine wire
• Meets USCG CFR Title 46 for charter boat wiring
• Aligned with ABYC marine electrical standards

Who is this for: This spool of Ancor 12 AWG tinned copper wire is intended for boat owners, marine electricians, RV technicians, and anyone installing DC electrical systems in corrosive or vibration-prone environments. Choose it when you need a durable, flexible conductor for battery cables, distribution runs, lighting circuits, and accessories where long-term corrosion resistance and regulatory compliance matter. The 100-foot length suits multiple runs or stocking for future repairs and upgrades.