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Min Length: 1 FT
Max Length: 1000000 FT
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Product Information


12/4 SJOOW Yellow 300V

Allowable Ampacity For 12/4 SJOOW Yellow 300V: 20 Amps


SJOOW is a junior service entrance cable that is resistant to oil, weather, and water. The voltage of the electrical cable is 300 volts. The cable is designed to be used in portable tools and appliances, as well as small motors, temporary power distribution, lighting, and sound systems. SJOOW is suitable for both indoor and outdoor applications. It is a highly flexible electrical cable with a superior tensile strength that can serve you for decades. The electrical cable is perfect for harsh conditions in -40°C to 105°C temperature extremes. Its yellow color allows for better visibility in high-traffic industrial settings.

Also Known As:

12/4 SJOOW Portable Power Cable, 12/4 SJOOW, 12/4 SJOOW Extension Cord, 12/4  SJOOW Power Cord, 12/4 SJOOW Portable Cord, 12/4 SJOOW Service Cord, 12/4 SJOOW Service Cable, 12/4 SJOOW Cord, 12/4 SJOOW Cable, 12/4 SJOOW Wire, 12/4 SJOOW Flexible Power Cable, 12/4 SJOOW Control Cable.


  • UL Standard 62
  • NEC 501.140 Class I Div. 2
  • CSA 22. 2 No. 49
  • MSHA
  • NEC Article 400
  • Federal Spec #JC580B
  • RoHS



Stranded, bare, and fully soft annealed copper conductor, Class K per ASTM B174. Suitable for harsh conditions.


SOOW Cord UL/CSA has an EPDM l insulation. EPDM is an initial for Ethylene Propylene Diene Monomer. EPDM is a synthetic rubber that has the ability to be deformed into the required shape. It is also elastic with an excellent tensile strength of about 1000 PSI (pounds per square inch). Tensile strength gives it good resistance to breaking, even under tension. It has 300% flexibility that enables it to regain its original shape and size after a stretch.

EPDM is a good insulator due to its excellent resistance to severe weather, acids, alkalis, aging, water, ozone, sunlight, and oxygen. This excellent resistance ensures the conductor remains effectively functional throughout its service life with no physical or mechanical distraction.


Yellow Chlorinated Polyethylene CPE is a heavy-duty thermoplastic polymer jacket that has superior resistance to chemicals and flames. The jacket is impressively flexible and durable.


  • AWG: 12
  • No. of Conductors: 4
  • Conductor Strand:65/30
  • Nominal Insulation Thickness: 0.030 Inches
  • Nominal Overall Diameter: 0.500 Inches
  • Current Amp: 20
  • Weight 1000FT: 214 lbs

*Data provided on this page is subject to change based on different manufacturers' variances
** Images are for display purposes only refer to Product Technical Details for accurate information on the product.
In the case the material only comes in a predetermined color or doesn’t come with any color

Download PDF Spec Sheet


12/4 SJOOW Portable Power Cable 300V - Yellow | Nassau Cable