CBL#4/0 - 4/0 AWG Heavy Duty Copper Welding Cable - Custom Cut Length

Maximum Power 4/0 Welding Cable – Sold by the Foot

When your welding setup demands maximum power transfer, you need a cable that can handle the heat without holding you back. Our 4/0 AWG welding cable is the heavy-hitter of the industry, designed to carry high amperage for your biggest stick, MIG, or TIG machines without overheating or causing significant voltage drop. If you are running long leads or operating at the upper limits of your machine's duty cycle, upgrading to 4/0 cable is the best way to ensure a stable, smooth arc.

Built for the Shop Floor

We know that welding cables take a beating. They get dragged over concrete, stepped on, run over by forklifts, and covered in sparks and oil. That’s why this cable features a rugged EPDM rubber jacket. Unlike stiff PVC cables that crack in the cold or melt near heat, this rubber insulation stays flexible in freezing temperatures (down to -50°C) and resists burning if it accidentally touches a hot surface. It’s tough enough to withstand the daily grind of a busy fabrication shop or an outdoor job site.

Flexibility Matters

Despite being a massive 4/0 gauge (0000 size), this cable is surprisingly flexible. It uses thousands of fine copper strands rather than a few thick wires. This "rope-lay" construction means you can easily coil it up at the end of the day, and it won't fight you when you're trying to maneuver your stinger or ground clamp into a difficult position. It lays flat and doesn't retain a memory like cheaper, stiffer wires.

Versatile Applications

While it's perfect for welding leads, this 4/0 cable is also the gold standard for other high-current DIY and professional projects. It is excellent for:

• Battery Interconnects: Connecting batteries in series or parallel for solar, RV, or marine setups.
• Inverter Wiring: Safely powering large power inverters without voltage drop.
• Jumper Cables: Making your own heavy-duty booster cables that can start semi-trucks and heavy equipment.
• Car Audio: High-performance power and ground wiring for competition-level sound systems.

Sold by the foot, you can buy exactly what you need—whether it's a 10-foot stinger lead or a 100-foot extension. Get the professional-grade copper you need to keep the power flowing.