150ft 12/3 12 AWG Portable Power Cable - Heavy Duty SJOOW 300V

In this review of the 150ft 12/3 12 AWG Portable Power Cable the bottom line is clear: this is a purpose-built SJOOW cord for installers, event technicians, and industrial crews who need a long, flexible run that stands up to harsh conditions. The reviewer found the cable best for portable power, motor leads, and temporary lighting because of its rugged PVC jacket, stranded OFC conductors, and resistance to oil, water and chemicals, making it a dependable choice where durability and conductivity matter most.

Key Features

• Rugged construction: A thick PVC jacket and insulated conductors resist oils, acids and water so the cable survives demanding outdoor and industrial use.
• Oxygen free copper: Stranded OFC conductors provide improved conductivity and corrosion resistance for reliable current delivery over long runs.
• Temperature range: Rated to operate from -40C to 90C, which keeps performance steady across extreme jobsite temperatures.
• Flexible length: The full 150 ft spool gives long reach for portable lights, generators, pumps and staging without many splices.
• Three conductors: The 12/3 configuration is ready for common 3-conductor power and control tasks where a separate grounding wire is not required.

Who It's For

This cable is aimed at electricians, rental houses, stage and event crews, and industrial maintenance teams who need a heavy duty, long run cable that tolerates exposure to water, oil and chemicals. It is particularly useful when flexible stranded OFC is preferred for motor leads, portable lighting, battery chargers and temporary power distribution.

It is not intended for applications requiring an extra separate grounding conductor or where a 3+1 style cable is explicitly required, so those with grounded-3rd-wire needs should choose a different cable. Also, if a thicker single-conductor build is expected, note that some users found the jacket and conductor feel thinner than other heavy cables.

Pros & Cons

Pros

• Durable PVC jacket and insulation resist oils, chemicals and water for outdoor and industrial use.
• Stranded OFC conductors deliver better conductivity and corrosion resistance than standard copper strands.
• Long 150 ft length reduces the need for splices and extends reach for temporary power setups.
• Flexible enough for routing on jobsites and marine environments where movement and vibration occur.

Cons

• Does not include an extra grounding wire; this is a 3-conductor, not a 3+1 ground-included style.
• Some buyers may perceive the jacket or overall thickness as thinner than other heavy duty cables.

Specifications

Length	150 ft
Gauge	12 AWG
Conductors	3 conductor stranded OFC
Voltage rating	300V
Jacket type	SJOOW PVC jacket
Operating temp	-40C to 90C
Overall diameter	9.2 mm

Our Verdict

The 150ft 12/3 SJOOW cable is a practical, value-oriented choice for anyone needing a long, flexible power run that handles oils, water and chemicals while offering improved conductivity with OFC strands. Buy it if you need reliable portable power or motor leads in harsh environments; look elsewhere if you require a ground-included 3+1 cable or a noticeably heavier jacket.

Frequently Asked Questions

Does this cable include a separate ground conductor?
Answer. No, this is a 3-conductor 12/3 cable and does not include an extra grounding conductor or a 3+1 configuration.

Is the copper solid or stranded?
Answer. The cable uses stranded oxygen free copper conductors, each made from multiple thin copper strands for flexibility and conductivity.

Can I use this cable outdoors and in marine settings?
Answer. Yes, the SJOOW PVC jacket and insulation are rated for oil, water and chemical resistance, making it suitable for many outdoor and marine applications within the stated temperature range.