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Solid THHN/THWN-2 WireFrom $0.20/ft - Solid THHN/THWN-2 WireFrom $0.20/ft
- Solid THHN/THWN-2 WireFrom $0.20/ft
Parent SKU : SJOOW18-4
SKU : SJOOW18-4-250
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.
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 -40°C to 90°C, 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.
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, GreenÂ
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
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 buyer’s responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.
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*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.
| Wire Size (AWG/MCM) | 18 AWG |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 16/30 |
| Outer Diameter (OD) (in/mm) | 0.33 in. / 8.382 mm |
| Jacket Type | EPDM Rubber |
| Conductor Count | 4 |
| Shield | Unshielded |
| Insulation Type | Ethylene Propylene Diene Monomoer (EPDM) or Ethylene Propylene Rubber (EPR) |
| UL Listing Numbers | UL/CSA |
| Voltage Rating | 300V |
| Ampacity Rating | 7 |
| Submersible | No |
| Flexibility Rating | High |
| Sunlight Resistance Rating | Yes |
| Temperature Rating | 90ºC |
| Standards | UL Flexible Cord - UL 62 CSA C22.2 No. 49 Flame test meets FT2 ASTM B-174 MSHA Approved OSHA Accepted RoHS Compliant |
| Miscellaneous Information | All values are nominal and subject to correction. **Ampacity values shown are for current carrying conductors. A grounding conductor, or one which carries only the unbalanced current from other conductors, is NOT counted in determining current carrying capacity. |
| RoHS Compliance | Yes |
| Primary Applications | Portable tools and equipment, portable appliances, small motors, machinery. |
| Common Uses |
|
| Weight per Foot | 0.071 lb |
In-stock orders placed before 3pm EST typically ship within 1-2 business days. Our business days are Monday through Friday; we do not process orders on Saturday, Sunday, or major US Holidays.
You will receive an e-mail with a tracking number within 1-2 business days from the time its shipped. You will also be able to view your order status and tracking numbers in your account order history.
Expedited shipments are delivered Monday-Friday except on US Holidays. The order must be placed before 12pm CST to ship same day ( Mon-Fri Only).
You have 30 days from the day you receive the item to contact us for a return. Returns are subject to a 30% Restocking Fee.
Please contact us at help@wireamerica.com to request a return authorization. Have your order number or name the order was placed with ready and we will email you an RMA (return) number and instructions for return. Currently, we do not offer exchanges. A new order must be placed if you need a different item. If you provide the new order number at the time of your return request, the restocking fee may be lowered.
Orders on any items with a material value of $50 or less are non-returnable.
Parent SKU : SJOOW18-4
SKU : SJOOW18-4-250
Parent SKU : SJOOW18-4
SKU : SJOOW18-4-250
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.
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 -40°C to 90°C, 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.
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, GreenÂ
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
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 buyer’s responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.
Â
*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.
| Wire Size (AWG/MCM) | 18 AWG |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 16/30 |
| Outer Diameter (OD) (in/mm) | 0.33 in. / 8.382 mm |
| Jacket Type | EPDM Rubber |
| Conductor Count | 4 |
| Shield | Unshielded |
| Insulation Type | Ethylene Propylene Diene Monomoer (EPDM) or Ethylene Propylene Rubber (EPR) |
| UL Listing Numbers | UL/CSA |
| Voltage Rating | 300V |
| Ampacity Rating | 7 |
| Submersible | No |
| Flexibility Rating | High |
| Sunlight Resistance Rating | Yes |
| Temperature Rating | 90ºC |
| Standards | UL Flexible Cord - UL 62 CSA C22.2 No. 49 Flame test meets FT2 ASTM B-174 MSHA Approved OSHA Accepted RoHS Compliant |
| Miscellaneous Information | All values are nominal and subject to correction. **Ampacity values shown are for current carrying conductors. A grounding conductor, or one which carries only the unbalanced current from other conductors, is NOT counted in determining current carrying capacity. |
| RoHS Compliance | Yes |
| Primary Applications | Portable tools and equipment, portable appliances, small motors, machinery. |
| Common Uses |
|
| Weight per Foot | 0.071 lb |
In-stock orders placed before 3pm EST typically ship within 1-2 business days. Our business days are Monday through Friday; we do not process orders on Saturday, Sunday, or major US Holidays.
You will receive an e-mail with a tracking number within 1-2 business days from the time its shipped. You will also be able to view your order status and tracking numbers in your account order history.
Expedited shipments are delivered Monday-Friday except on US Holidays. The order must be placed before 12pm CST to ship same day ( Mon-Fri Only).
You have 30 days from the day you receive the item to contact us for a return. Returns are subject to a 30% Restocking Fee.
Please contact us at help@wireamerica.com to request a return authorization. Have your order number or name the order was placed with ready and we will email you an RMA (return) number and instructions for return. Currently, we do not offer exchanges. A new order must be placed if you need a different item. If you provide the new order number at the time of your return request, the restocking fee may be lowered.
Orders on any items with a material value of $50 or less are non-returnable.
Get notified when this product is back in stock
Physical Specifications
Technical Specifications
Usage & Installation:
Packaging & Dimensions:
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This 18 AWG, 4-conductor portable cord is the preferred choice for applications requiring multiple control signals or low-amperage 3-phase power. It is most commonly used for industrial remote controls, push-button stations, and small 3-phase motors. Because of its high conductor count in a flexible format, it is also frequently used in stage lighting systems (DMX or power-plus-control) and for wiring complex medical equipment where flexibility and chemical resistance are mandatory.
The SJOOW acronym defines the specific construction and durability standards of the cord:
This cord is rated for 7 Amps per conductor. This rating is based on an ambient temperature of 30°C (86°F) per NEC standards for 4-conductor assemblies.
With four conductors, this cord offers several wiring possibilities:
18/4 SJOOW is engineered for "Hard Service" in environments where standard extension cords would fail:
Standard extension cords (often made with PVC or SJT jackets) stiffen in the cold and melt when exposed to oils or heat. SJOOW uses rubber-based materials that maintain their flexibility and chemical resistance, making them the only choice for professional/industrial use.
Yes. The "W" rating indicates the cord is water and weather-resistant, meaning it is designed to hold up against rain, sunlight, and outdoor temperature fluctuations.
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