UL62 Heavy Duty Portable Cord | SJO, SJOW, SJOOW 3×16/3×12 AWG | Oil & Weather Resistant Cable

UL62 Heavy Duty Portable Cord | SJO, SJOW, SJOOW 3x16/3x12 AWG | Oil & Weather Resistant Cable

Product Overview

Engineered for extreme industrial environments, our UL62-compliant Heavy Duty Portable Cords (SJO, SJOW, SJOOW) deliver reliable power transmission in demanding applications. Featuring thermoset rubber jackets for maximum durability, these cables offer superior resistance to oil, abrasion, weather, and mechanical stress. Ideal for construction sites, industrial machinery, and outdoor applications where standard cables fail.


Key Features

• Heavy-Duty Construction: Thermoset rubber jackets (CPE/Neoprene)
• Multi-Hazard Resistance: Oil (O/OO), Water (W), UV, Abrasion (-40°C to 90°C operational)
• Certified Safety: UL Listed & CSA Certified for indoor/outdoor use
• Enhanced Conductivity: Stranded copper/tinned copper conductors
• Flexible Design: Maintains pliability in cold environments


Technical Specifications

Parameter Specification
Standard UL 62
Voltage Rating 300V (J suffix) or 600V
Temp. Range -40°C to +90°C (Standard)
-40°C to +105°C (Optional)
Conductor Stranded Copper (CU) / Tinned Copper (TC)
Insulation EPDM/EPR Rubber (Oil-resistant with OO suffix)
Jacket CPE or Neoprene (Thermoset Rubber)
Jacket Coding No "E" or "T" = Thermoset Rubber
AWG Range 18 AWG to 10 AWG (Standard)
Certifications UL Listed, CSA Certified

Cable Structure & Designations

Layer Construction:

  1. Conductor: High-strand copper/tinned copper

  2. Insulation: EPDM/EPR rubber (OO = oil-resistant)

  3. Jacket: Thermoset rubber (CPE/Neoprene)

Suffix Decoder:

  • S = Service Grade

  • J = Junior Service (300V rating)

  • O = Oil-resistant outer jacket

  • OO = Oil-resistant insulation + jacket

  • W = Weather/water resistant (outdoor rated)

Common Types:

  • SJO: 300V, Oil-resistant jacket

  • SJOW: 300V, Oil/Weather-resistant

  • SJOOW: 300V, Oil-resistant insulation/jacket + Weatherproof


Material Advantages

• Thermoset Jacket (CPE/Neoprene): Superior cut/abrasion resistance vs. thermoplastic
• Cold Flexibility: Performs at -40°C without cracking
• Chemical Resilience: Resists oils, solvents, ozone, and UV degradation
• Flame Retardant: Meets UL flame test requirements


Application Scenarios

✓ Construction site power distribution
✓ Industrial machinery & motor connections
✓ Portable generators/welders
✓ Agricultural equipment
✓ Outdoor events/stage lighting
✓ Shipyards & marine applications (where certified)
✓ Heavy-duty extension cords


Compliance & Use

• Standards: UL 62 Compliance
• Environments: Indoor/Outdoor (W suffix required for wet locations)
• Installation: Flexible for dynamic applications


Engineering Selection Guidance

Select SJO/SJOW/SJOOW cables when these conditions exist:

  1. Physical Stress: Frequent dragging, abrasion, or impact

  2. Oil/Chemical Exposure: Machinery lubricants or industrial solvents (Use O/OO suffix)

  3. Outdoor/Wet Locations: Installations exposed to moisture (Requires W suffix)

  4. Temperature Extremes: Operations below -20°C or above 75°C

  5. Voltage Requirements: 300V (J suffix) or 600V applications