SJOOW FLEXIBLE 300V CORD

SJOOW Flexible 300V Cord is a widely used, flexible, and heavy-duty electrical cable suitable for both indoor and outdoor applications. Its designation breaks down its key features: the "S" means Service (indicating a robust cable), the "J" denotes Junior Service (meaning it's rated for 300 volts, unlike 600-volt "S" cords), "OO" signifies both oil-resistant insulation and an oil-resistant outer jacket, and "W" indicates weather and water resistance. This combination makes SJOOW cable exceptionally durable against abrasion, heat, and moisture, while remaining flexible enough to power portable tools, small motors, temporary lighting, and extension cords effectively. Learn more from our SJOOW Portable Cord Buyers Guide.

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SJOOW Flexible Cord (300V): An Excellent Choice for Portable Power

Looking for an agile US distributor that sells flexible SJOOW portable service cord by the foot? Wire America is a premier supplier of bulk SJOOW Service Cord, providing this highly adaptive SJ cord with flexible 300V rubber insulation cut to your exact length with fast shipping to keep your projects moving.

SJOOW is a high-performance, junior-service portable cord designed for use in harsh environments where durability and flexibility are paramount. The acronym "SJOOW" denotes its specific construction: S (Service), J (Junior Service - 300V), OO (Oil-resistant insulation and jacket), and W (Weather and water resistant). This cable features fine-stranded copper conductors for maximum flexibility, encased in a premium thermoset chlorinated polyethylene (CPE) rubber jacket. Unlike standard PVC cords, SJOOW remains highly pliable in sub-zero temperatures and resists deformation under heat, making it the industry standard for portable tools, small appliances, and industrial equipment subjected to oil, chemicals, and outdoor exposure.


Key Features
  • 300V Junior Service Rating: Optimized for medium-duty power applications in residential, commercial, and industrial settings.
  • Double Oil Resistance: Both the internal conductor insulation and the outer protective jacket are specifically engineered to resist oil, grease, and solvents.
  • All-Weather Performance: Rated for a wide temperature range of -40°C to 90°C, ensuring the cord won't crack in extreme cold or melt in high heat.
  • Water & UV Resistant: The "W" rating certifies the cable for outdoor use, providing long-term protection against sunlight and moisture.
  • Superior Flexibility: High-strand-count copper conductors allow for tight bending and frequent movement without wire fatigue or kinking.
  • Non-Marring Jacket: The rugged CPE rubber exterior is designed to be tough yet smooth, preventing it from marking or scuffing floors and surfaces.
  • Industry Compliance: UL 62 and CSA C22.2 No. 49 listed, meeting MSHA requirements for flame resistance in mining applications.
Common Applications
  • Portable Power Tools: Ideal for heavy-duty drills, saws, and grinders used on construction sites and in workshops.
  • Small Motor & Appliance Leads: Used as the primary power cord for industrial fans, blowers, and portable heaters.
  • Commercial Kitchen Equipment: Resistant to food oils and frequent cleaning, making it perfect for mobile food prep machinery.
  • Garage & Shop Lighting: Used for drop lights, portable work lamps, and overhead retractable cord reels.
  • Hospitality & Event Power: Frequently utilized for powering sound systems, stage lighting, and portable HVAC units.
  • Marine & Dockside Tools: The weather-resistant jacket makes it suitable for on-deck repairs and temporary dockside power.
  • Industrial Control Pendants: Flexible enough for use in push-button stations and overhead crane control systems.
  • Custom Lengths: We offer precision-cut lengths to fit your exact project needs, with same-day shipping to keep your job on schedule.
SJOOW vs. SOOW: Which do you need?
  • If you are powering standard 120V tools or 240V industrial appliances, SJOOW is often the smarter buy. Because it is rated for 300V rather than 600V, the insulation is thinner, making the cable significantly lighter, more flexible, and more cost-effective while providing the exact same oil and weather protection as its heavier SOOW counterpart.

Resources & Guides

Category_Buying Guide
What is SJOOW Portable Cord 300V?
June 30, 2026
Read More
What is CPE Cable Jacketing? | Industrial Durability Guide
February 17, 2026
Read More