THHN / THWN-2 Route
Select THHN / THWN-2 Wire according to local electrical code, wiring method, conductor material, temperature rating and wet/dry location requirement.
THHN / THWN-2 Wire
THHN / THWN-2 Wire for building wire and fixed electrical installation routes.
THHN / THWN-2 Wire is used for building wire routes where thermoplastic insulation, nylon jacket performance and UL-style conductor sizing are required.
Product Overview
THHN / THWN-2 Wire should be selected according to the actual project route, not by product name alone. Before quotation, review wire type, conductor material, temperature rating, wet/dry location rating and local electrical code route. Datasheet wording, compliance documents and final supply notes should stay aligned with the selected standard and installation conditions.
Applications
- branch circuit and general building wiring in conduit or raceway
- commercial, residential and light industrial electrical installations
- panel, lighting and equipment wiring where UL-style THHN/THWN-2 route is requested
- wet or dry location review according to the specified conductor and insulation rating
Construction
copper or aluminum conductor with insulation and jacket system according to building wire type. Final conductor size, temperature rating, wet/dry location rating and wire type, temperature rating and installation route should follow the selected code route.
Marking on Cable
FARWALK CABLE – THHN / THWN-2 Wire – [standard] – [size] – [rating] – [year] – [meter mark]
Cable Identification
- Insulation color, conductor identification and printed marking can be matched to the requested building wire type.
- Wire type, conductor size and temperature rating should remain clear in product marking when required.
Standards
- UL 83
- UL 44
- UL 854
- ASTM B800 / B801 where applicable
Main Features
Wire Type
Confirm THHN/THWN-2, XHHW-2, THW, TFFN/TFN, SER or SEU before selecting conductor and insulation.
Local Code Route
Building wire must follow the destination market electrical code and approved installation method.
Wet / Dry Location
Review insulation rating, jacket type and temperature class according to conduit, raceway or service entrance use.
Conductor Material
Choose copper, aluminum or 8000-series alloy according to ampacity, voltage drop, termination and budget.
Product Selection Guide
Wire Type
Confirm THHN/THWN-2, XHHW-2, THW, TFFN/TFN, SER or SEU before selecting conductor and insulation.
Local Code Route
Building wire must follow the destination market electrical code and approved installation method.
Wet / Dry Location
Review insulation rating, jacket type and temperature class according to conduit, raceway or service entrance use.
Conductor Material
Choose copper, aluminum or 8000-series alloy according to ampacity, voltage drop, termination and budget.
Technical Data Overview
| Size (AWG / kcmil) | No. of Strands | PVC Thick. (mils/mm) | Nylon Thick. (mils/mm) | Approx. OD (mils/mm) | Allowable Ampacity @ 90°C (Amps) |
| Stranded Copper THHN / THWN-2 – 600V | Stranded Copper THHN / THWN-2 – 600V | Stranded Copper THHN / THWN-2 – 600V | Stranded Copper THHN / THWN-2 – 600V | Stranded Copper THHN / THWN-2 – 600V | Stranded Copper THHN / THWN-2 – 600V |
| 14 AWG | 7 | 15 / 0.38 | 4 / 0.10 | 109 / 2.77 | 15 |
| 12 AWG | 7 | 15 / 0.38 | 4 / 0.10 | 128 / 3.25 | 20 |
| 10 AWG | 7 | 20 / 0.51 | 4 / 0.10 | 161 / 4.09 | 30 |
| 8 AWG | 19 | 30 / 0.76 | 5 / 0.13 | 213 / 5.41 | 55 |
| 6 AWG | 19 | 30 / 0.76 | 5 / 0.13 | 249 / 6.32 | 75 |
| 4 AWG | 19 | 40 / 1.02 | 6 / 0.15 | 317 / 8.05 | 95 |
| 2 AWG | 19 | 40 / 1.02 | 6 / 0.15 | 378 / 9.60 | 130 |
| 1/0 AWG | 19 | 50 / 1.27 | 7 / 0.18 | 474 / 12.04 | 170 |
| 2/0 AWG | 19 | 50 / 1.27 | 7 / 0.18 | 518 / 13.16 | 195 |
| 4/0 AWG | 19 | 50 / 1.27 | 7 / 0.18 | 624 / 15.85 | 260 |
| 500 kcmil | 37 | 60 / 1.52 | 9 / 0.23 | 921 / 23.39 | 430 |
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