Ancor 12 AWG Marine Tinned Copper Wire — 250 ft Red, Ultra-Flexible Corrosion-Resistant

Ancor 12 AWG marine-grade tinned copper wire — 250 feet of ultra-flexible, corrosion-resistant red wiring built for demanding boat and marine electrical systems.

This 250-foot spool of red 12-gauge wire from Ancor is engineered for marine use where moisture, vibration and salt spray shorten ordinary wiring life. The conductor is made from many fine tinned copper strands for improved flexibility and electrochemical protection, while the heavy-duty vinyl jacket maintains pliability in extreme cold and resists chemicals, UV and abrasion. It meets or exceeds UL 1426, ABYC and US Coast Guard CFR Title 46 requirements so it’s specified for both recreational and commercial craft wiring tasks.

How does this wire stand up to saltwater and humid environments?

The copper strands are tin-plated to slow corrosion and reduce the risk of galvanic reactions in wet, salty conditions. Combined with the durable outer insulation, the wire resists degradation that commonly causes electrical failures on boats.

• Tinned copper stranding reduces oxidation and electrolysis.
• Vinyl jacket resists salt, battery acid, oil and gasoline.
• Meets marine electrical standards for moisture-prone installations.

Will the wire stay flexible in cold temperatures and around vibration?

Yes — the product uses an ultra-flexible Type 3 stranding pattern and a specially formulated vinyl jacket that remains pliable even at very low temperatures. This flexibility decreases stress on terminations and prevents internal breakage from repeated motion or engine vibration.

• Type 3 ultra-flexible stranding resists fatigue from flexing.
• Insulation remains flexible down to -40°F/C for reliable routing.
• Maintains integrity where cords bend around fittings and through bulkheads.

What electrical ratings and safety standards does this wire meet?

The insulation is rated for up to 600 volts and is tested for elevated temperatures in dry and wet conditions, giving installers clear performance margins for typical marine circuits. The construction complies with established marine safety standards so it’s appropriate for onboard power distribution and accessory wiring.

• 600 V insulation rating for marine electrical systems.
• Temperature ratings: 105°C dry and 75°C wet.
• Exceeds UL 1426, ABYC and USCG CFR Title 46 standards.

How much wire do I get and what installation uses is it suited for?

This spool contains 250 feet of 12 AWG red wire — a common gauge for medium-load circuits such as DC distribution, battery cables to accessories, shore power controls, pumps and lighting feeds. The length and gauge make it convenient for routing through engine compartments, consoles and bilge areas without frequent splices.

• 250 ft spool for single-run circuits or multiple shorter runs.
• Ideal for battery-to-accessory runs, lights, pumps, and control circuits.
• Color-coded red for positive DC circuits or designated feeds.

Who this product is for: Marine technicians, boat owners, marina repair shops and anyone installing or upgrading onboard electrical systems who needs reliable, long-lasting 12 AWG cable. Choose this Ancor spool when you require a professional-grade conductor that resists corrosion, stays flexible under motion and temperature extremes, and complies with recognized marine safety standards.