TEMCo 4 Gauge 175 Ft Black Flexible Pure Copper Welding Cable - Heavy

In this review of the TEMCo 4 gauge 175 ft welding cable the bottom line is simple: this is a flexible, heavy duty battery and welding cable best suited for DIY mechanics, solar installers, and anyone building battery banks who needs long runs of dependable copper wiring. The standout reason to buy is the cable's combination of annealed oxygen free copper conductor and a rugged EPDM jacket that stays pliable in cold weather while resisting oil, abrasion and flame, making installation and long-term service much easier than with stiffer alternatives.

Key Features

• 150 Max Amps (up to 50 ft): Provides a clear current guideline so installers can size runs and maintain safe performance for short to moderate distances.
• Rated up to 600 volts: Makes the cable suitable for a variety of DC power uses including solar arrays, inverters and battery systems.
• Wide temperature range: Operates from -58F to +221F so it remains flexible in cold weather and durable under engine bay heat.
• Annealed 30 gauge OFC conductor: The oxygen free copper construction and 364/30 stranding deliver good conductivity and flexibility for repeated bending.
• Rugged EPDM jacket: The jacket resists cuts, tears, abrasion, water, oil, grease and flame, which helps protect long cable runs in harsh environments.
• Versatile applications: Useful not only for welding but also for battery/starter cables, car audio, solar, RV systems, winches and battery banks.

Who It's For

This cable is aimed at home fabricators, vehicle owners and small solar installers who need long lengths of pure copper cable that remain easy to route and terminate. The 175 ft length and flexible construction are particularly convenient for battery banks, RV/DC systems and runs from panels or inverters where maneuverability matters.

It is less appropriate for users who need higher continuous ampacity over long distances without upsizing conductors, or those who require specialized insulation types beyond EPDM for unique chemical exposures. Professionals needing certified welding electrode cables for industrial stick welding should confirm this cable meets their equipment standards before relying on it exclusively.

Pros & Cons

Pros

• High flexibility from the 364/30 annealed OFC stranding makes routing and termination easier in tight spaces.
• Durable EPDM jacket resists oil, grease, abrasion and flame for longer life in vehicle and workshop environments.
• Long 175 ft spool offers good value for extensive runs like battery banks or solar arrays.

Cons

• 150 amp guideline applies only to short runs (up to 50 ft); longer runs will require larger conductors for the same current.

Specifications

Gauge	4 AWG
Length	175 ft
Max current	150 Amps (up to 50 ft)
Voltage rating	Up to 600 volts
Temperature range	-58F to +221F (-50C to +105C)
Conductor	Annealed 30 gauge OFC, 364/30 stranding
Nominal OD	0.331 in (8.41 mm)

Our Verdict

The TEMCo 4 gauge 175 ft cable is a practical, cost-conscious choice for DIYers and small installers who need long, flexible pure copper runs for battery systems, solar and vehicle use. Its combination of oxygen free copper and a rugged EPDM jacket delivers durability and ease of installation, but buyers should size up for long high-current runs to avoid voltage drop.

Frequently Asked Questions

Can this cable be used for solar and inverter connections?
Yes. It is rated to 600 volts and is suitable for DC solar and inverter connections when sized appropriately for run length and current.

Is the cable flexible enough for routing in tight spaces?
Yes. The 364/30 annealed OFC stranding and EPDM jacket make it highly flexible for battery bays, engine compartments and conduit runs.

Will it handle engine bay heat and exposure to oil?
The EPDM jacket is resistant to oil and heat up to its temperature rating, so it performs well in engine bay environments within the listed temperature range.