The industry standard for portable power in demanding job-site environments. Designed for 300V service, this 18/4 SJOOW cord features high-flexibility stranded copper conductors and a heavy-duty, oil-resistant neoprene jacket. Engineered for both indoor and outdoor use, it is built to withstand extreme temperatures, moisture, and chemical exposure, making it the reliable choice for professional tool power and industrial equipment.

Why Professionals Rely on 18/4 SJOOW Portable Cord

The 18/4 SJOOW portable cord is a professional-grade solution for temporary power applications that demand both high performance and superior durability. By utilizing premium EPDM rubber insulation and a rugged thermoset jacket, it offers exceptional resistance to the abuse common on construction sites and in busy workshops.

• 300V Versatility: Rated for portable power and service applications where flexibility and safety are paramount.

• Oil & Weather Resistant: The “OO” rating ensures the jacket will not degrade when exposed to grease, hydraulic fluids, oils, or harsh outdoor weather conditions.

• All-Temperature Flexibility: Engineered to remain pliable in extreme environments, from -40C to 90C, preventing the cracking and stiffening common with cheaper plastic cords.

• Job-Site Ready: Designed for high-traffic areas, providing superior resistance to abrasion, cuts, and tears.

Technical Specifications: 18/4 SJOOW

• Application: Portable power tools, industrial machinery, portable appliances, and temporary site lighting.

• Conductor Size: 18 AWG

• Number of Conductors: 4

• Color Code: Black, White, Red, Green

• Ampacity: 7 Amps (Based on NEC Table 400.5(A)(1) – adjusted for 4 conductors)

• Voltage Rating: 300V

• Jacket Material: Premium Grade Thermoset CPE (Black)

• Insulation: Oil-Resistant EPDM

• Conductor Material: Fully Annealed Stranded Bare Copper (Class K)

• Standards: UL 62, CSA C22.2 No. 49, MSHA Approved, OSHA Acceptable

Common Applications

• Multi-Phase Portable Power: Ideal for small 3-phase motors and equipment requiring a dedicated neutral and ground.

• Industrial Control Systems: The standard for wiring multi-function pendant stations, limit switches, and push-button controls on conveyor lines.

• Medical and Laboratory Equipment: Frequently used for mobile workstations and diagnostic machines requiring reliable power in sterilized environments.

• Stage and Studio Lighting: Perfectly suited for portable lighting rigs and multi-circuit power drops where durability and a discreet black jacket are required.

Technical Note: All values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyers responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.

*All values are nominal and subject to correction. Ampacity is based on the National Electrical Code (NEC) for flexible cords and cables, adjusted for the number of current-carrying conductors in the cord.