Marine Wire & Cable

Marine electrical systems demand wiring that can withstand moisture, vibration, heat, and long‑term exposure to saltwater. CLR Marine offers a complete selection of marine‑grade wire and cable, engineered with tinned copper conductors, oil‑resistant jackets, and ABYC‑compliant insulation to ensure maximum durability and safety on the water.

Our collection includes primary wire, duplex cable, triplex cable, battery cable, and specialty marine wiring designed for both DC and AC systems. Tinned copper construction prevents corrosion, improves conductivity, and extends the life of your electrical system—making it the industry standard for boats, RVs, and off‑grid installations.

Whether you're rewiring navigation lights, installing a new battery bank, upgrading electronics, or building a complete electrical system, CLR Marine provides the high‑quality wire needed for reliable performance in harsh marine environments.

Key Features of Marine‑Grade Wire & Cable

• Tinned copper conductors for superior corrosion resistance
• ABYC‑compliant insulation for safety and longevity
• Flexible, high‑strand construction for tight routing
• Resistant to oil, heat, vibration, and moisture
• Available in multiple gauges and color codes
• Suitable for 12V, 24V, and 48V systems
• Ideal for boats, RVs, off‑grid cabins, and mobile power systems

Types of Marine Wire & Cable Available

Primary Marine Wire

• Single‑conductor tinned copper
• Ideal for lights, pumps, electronics, and accessories

Duplex Marine Cable

• Two‑conductor cable for DC circuits
• Perfect for pumps, lighting circuits, and helm wiring

Triplex Marine Cable

• Three‑conductor cable for AC systems
• Commonly used for shore power and AC distribution

Marine Battery Cable

• Heavy‑duty cable for battery banks, inverters, and chargers
• High‑strand tinned copper for maximum flexibility

Specialty Marine Cable

• Speaker wire, trailer wire, and multi‑conductor cable
• Designed for marine audio and auxiliary systems

Applications for Marine Wire & Cable

• Navigation and cabin lighting
• Bilge pumps, livewell pumps, and blowers
• Battery banks, chargers, and inverter systems
• Helm wiring and switch panels
• RV and off‑grid electrical installations
• Solar, charging, and distribution circuits

FAQs

Q1: Why is tinned copper wire required for marine use?

Tinned copper resists corrosion far better than bare copper, ensuring long‑lasting electrical performance in saltwater and high‑moisture environments.

Q2: What’s the difference between duplex and triplex marine cable?

Duplex cable has two conductors for DC circuits, while triplex cable has three conductors and is typically used for AC shore power and distribution systems.

Q3: Can marine wire be used in RVs or off‑grid systems?

Absolutely. Marine wire is often superior due to its corrosion resistance, flexibility, and high‑temperature insulation, making it ideal for RVs, vans, and off‑grid power setups.

Also see ABYC Marine Wiring Guide