Trailing & towing
Oil- and weather-resistant PVC outer jacket shrugs off wet grass, mud, concrete and garage oil spills.
Product
Type SJTOW is a 300 V North American Junior Hard Service portable cord manufactured to UL 62 and CSA C22.2 No. 49. Built with flexible bunch-stranded ASTM B174 bare copper conductors (18 to 10 AWG, 2 to 4 cores), standard thermoplastic PVC core insulation and
Typical values for this cable type, based on UL 62 / CSA C22.2 No. 49 / NEC Art. 400 — confirmed in the datasheet and quotation for your order.
Application fit
Specified for heavy-duty outdoor extension cords, portable construction lighting, pressure washers, landscaping machinery, commercial floor-care equipment and workshop power tools with sealed cord grips.
Oil- and weather-resistant PVC outer jacket shrugs off wet grass, mud, concrete and garage oil spills.
Used for temporary jobsite string lighting, retractable garage cord reels and pendant drops.
Inner core insulation is standard PVC; if oil enters the terminal box, specify double-oil SJTOOW.
SJTOOW double-oil cordFor 600 V heavy industrial reeling or high-current distribution, select STOOW or SEOOW.
STOOW 600 V portable cordConstruction
ASTM B174 flexible bunch-stranded bare copper (18–10 AWG) + colour-coded thermoplastic PVC core insulation + non-wicking fillers + oil- ('O') and weather/sunlight-resistant ('W') thermoplastic PVC outer jacket.
| # | Layer | Material & reference |
|---|---|---|
| 1 | Flexible bunch-stranded copper (ASTM B174) | Fine-stranded annealed bare copper (30 AWG individual strands) per UL 62ASTM B174 |
| 2 | Thermoplastic PVC core insulation (T) | Moisture- and heat-resistant colour-coded PVC dielectric (0.76–1.14 mm wall)UL 62 |
| 3 | Polypropylene fillers & separator wrap | Provides a smooth round profile for watertight cord gripsUL 62 |
| 4 | Oil & outdoor PVC outer jacket (O + W) | Oil-resistant, UV-stabilised and water-resistant PVC outer sheathUL 62 |
High-visibility 300 V outdoor extension and power tool cord in 16/3, 14/3, 12/3 and 10/3 AWG.
Black or grey 300 V cord for pressure washers, compressors, fans and commercial appliances.
Technical data
Sizes
Nominal dimensions, copper weight, total mass and electrical parameters for SJTOW per UL 62 / CSA C22.2 No. 49 / NEC Art. 400.
| Designation | AWG × Conductors | Stranding / NEC Amps | Nom. OD mm | Copper kg/km | Total mass ≈ kg/km | Min. bend R mm | Enquiry |
|---|---|---|---|---|---|---|---|
| SJTOW size schedule | |||||||
| SJTOW 18/2 | 18 AWG × 2C | 16/30 · 10 A | 7.37 | 17.5 | 66.0 | 44.2 | |
| SJTOW 18/3 | 18 AWG × 3C | 16/30 · 10 A | 7.87 | 26.2 | 81.0 | 47.2 | |
| SJTOW 18/4 | 18 AWG × 4C | 16/30 · 7 A | 8.64 | 35.0 | 100.0 | 51.8 | |
| SJTOW 16/2 | 16 AWG × 2C | 26/30 · 13 A | 8.00 | 27.8 | 81.0 | 48.0 | |
| SJTOW 16/3 | 16 AWG × 3C | 26/30 · 13 A | 8.51 | 41.7 | 103.0 | 51.1 | |
| SJTOW 16/4 | 16 AWG × 4C | 26/30 · 10 A | 9.40 | 55.6 | 130.0 | 56.4 | |
| SJTOW 14/2 | 14 AWG × 2C | 41/30 · 18 A | 9.14 | 44.2 | 114.0 | 54.8 | |
| SJTOW 14/3 | 14 AWG × 3C | 41/30 · 18 A | 9.65 | 66.3 | 145.0 | 57.9 | |
| SJTOW 14/4 | 14 AWG × 4C | 41/30 · 15 A | 10.67 | 88.4 | 184.0 | 64.0 | |
| SJTOW 12/3 | 12 AWG × 3C | 65/30 · 25 A | 11.18 | 105.0 | 206.0 | 67.1 | |
| SJTOW 12/4 | 12 AWG × 4C | 65/30 · 20 A | 12.19 | 140.0 | 262.0 | 73.1 | |
| SJTOW 10/3 | 10 AWG × 3C | 104/30 · 30 A | 14.48 | 168.0 | 342.0 | 86.9 | |
| AWG × Conductors | Max. DC R @ 20 °C Ω/km | Current in air A | Installed / duty A |
|---|---|---|---|
| 18 AWG × 2C | 21.400 | 10 | 8 |
| 18 AWG × 3C | 21.400 | 10 | 8 |
| 18 AWG × 4C | 21.400 | 7 | 6 |
| 16 AWG × 2C | 13.500 | 13 | 10 |
| 16 AWG × 3C | 13.500 | 13 | 10 |
| 16 AWG × 4C | 13.500 | 10 | 8 |
| 14 AWG × 2C | 8.450 | 18 | 14 |
| 14 AWG × 3C | 8.450 | 18 | 14 |
| 14 AWG × 4C | 8.450 | 15 | 12 |
| 12 AWG × 3C | 5.310 | 25 | 20 |
| 12 AWG × 4C | 5.310 | 20 | 16 |
| 10 AWG × 3C | 3.340 | 30 | 24 |
Quality & approvals
Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.
| Testing & inspection | Test value / reference | Frequency |
|---|---|---|
| Routine tests | ||
| 1.5 kV AC dielectric test, spark test & DC resistance | Zero breakdown; resistance per UL 62 | 100 % of reels |
| Sample tests | ||
| Outer jacket oil immersion & -40 °C cold bend test | Jacket passes UL 62 oil & low-temperature bend | Every batch |
| 720-hour UV weathering, wet dielectric & VW-1/FT2 flame | UL Listed & CSA Certified to UL 62 / C22.2 No. 49 | Type qualification |
Marking & supply
Sheath marking
Technical documents
FAQ
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