12/4 SJOOW Wire 150FT 12 AWG 300V SJOOW Cable - Durable Portable Power

In this review of the 12/4 SJOOW Wire 150FT, the bottom line is simple: this cable is built for demanding power distribution work where durability and flexible conductors matter. It is aimed at professionals and experienced DIYers who need a heavy-duty, portable 12 AWG, 4-conductor cord for generators, welders, motor leads, or temporary site power. The single biggest reason to buy is its rugged SJOOW construction and oxygen-free copper conductors, which combine to deliver reliable current capacity and resistance to oil, water, and chemicals in harsh conditions.

Key Features

• Rugged SJOOW jacket: The oil-, water-, and acid-resistant PVC jacket and 1 mm overall thickness protect the cord in harsh industrial and outdoor environments.
• Wide temperature range: Rated for -40C to 90C, the cable maintains flexibility and insulation integrity across extreme cold and heat during field use.
• Oxygen-free copper conductors: Four conductors, each of 72 finely stranded OFC wires, improve conductivity, heat dissipation, and corrosion resistance compared with standard copper blends.
• Portable 150 ft length: A full 150 ft reel provides long reach for temporary power runs at job sites, events, or marine applications without frequent joins.
• Versatile 4-conductor design: The 12/4 configuration supports power distribution to portable tools, lighting, generators, motors, and control circuits where a separate ground is handled differently.

Who It's For

The cable suits contractors, rental companies, stage and event technicians, marine electricians, and industrial maintenance crews who require a heavy-duty, long-run portable cord with superior conductor quality. Its flexible stranded OFC conductors and rugged jacket make it useful where frequent handling, abrasion, and exposure to oils or solvents occur.

Users who need a dedicated grounding conductor as part of a 4+1 assembly should look elsewhere, since this unit contains four current-carrying conductors only. For delicate indoor wiring inside walls, a building-rated NM or THHN solution would be more appropriate.

Pros & Cons

Pros

• Excellent durability from the thick PVC SJOOW jacket for outdoor and industrial environments.
• Superior conductivity and corrosion resistance from oxygen-free copper strands.
• Long 150 ft length reduces the need for connectors and enables flexible deployment on site.

Cons

• Contains only four current-carrying conductors with no separate equipment grounding conductor, which limits some wiring configurations.

Specifications

Our Verdict

The 12/4 SJOOW 150 ft cable is a solid choice for professionals who need a tough, portable power cord with high-quality stranded OFC conductors and a chemical-resistant jacket. It represents good value when durability and reliable conductivity matter, but confirm wiring requirements first since it does not include a separate grounding conductor.

Frequently Asked Questions

Does this cable include a separate ground conductor?
No, this product contains four current-carrying conductors only and is not a 4+1 style with a separate equipment grounding conductor.

Is this cable suitable for outdoor and marine use?
Yes, the oil-, water-, and acid-resistant PVC SJOOW jacket and wide temperature range make it appropriate for many outdoor and marine environments.

What is the conductor construction?
Each conductor is made of 72 finely stranded oxygen-free copper wires for improved conductivity and heat dissipation.