Product Overview
This Type THHN/THWN/T90 Wire is a versatile, general-purpose 600V building wire designed for a wide range of electrical installations. Constructed with stranded copper conductors, PVC insulation, and a protective nylon outer coating, it meets stringent North American safety standards. Its dual ratings—THHN (Dry locations up to 90°C) and THWN/THWN-2 (Wet locations up to 75°C)—make it a reliable and cost-effective choice for conduit, raceway, and control circuit applications in residential, commercial, and industrial settings.
Applications
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General Purpose Wiring: For installation in conduit, EMT, or other recognized raceways.
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Machine Tool & Control Circuits: Wiring for industrial machinery, control panels, and automation systems.
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Appliance Wiring: Internal and external wiring for various electrical appliances and equipment.
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Service Entrance & Feeder Wiring: Suitable for branch circuits and feeders within buildings.
Standards & Certifications
This wire is manufactured to comply with the following key standards, ensuring safety and performance:
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UL 83: Standard for Thermoplastic-Insulated Wires and Cables.
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CSA C22.2 No. 75: Thermoplastic Insulated Wires.
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CSA FT-1 Flame Test: Certified for flame retardancy.
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Listings: UL, cUL, and CSA listed for use in both the U.S. and Canada.
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Code Compliance: Suitable for use per the National Electrical Code (NEC) and Canadian Electrical Code (CEC).
Technical Specifications
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Rated Voltage: 600V
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Maximum Conductor Temperature:
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Dry Locations (THHN/T90): 90°C
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Wet Locations (THWN/THWN-2): 75°C
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Oil-Resistant: 75°C
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Construction
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Conductor: Soft annealed, stranded bare copper.
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Insulation: Polyvinyl Chloride (PVC), color-coded for phase identification.
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Outer Coating: Smooth, durable Nylon jacket over insulation for added mechanical and chemical protection.
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Available Colors: Black, Blue, Green, Brown, Red, Orange, Yellow, Gray, White, Pink, Tan. Striped and custom colors are available upon request.
Technical Parameters
| Section (AWG/kcmil) | Number of Strands | Insulation Thickness (mils) | Jacket Thickness Min. (mils) | Approx. Nominal O.D. (inch) |
|---|---|---|---|---|
| 14 | Solid or 7 | 15 | 4 | 0.086 |
| 12 | Solid or 7 | 15 | 4 | 0.100 |
| 10 | Solid or 7 | 20 | 4 | 0.127 |
| 8 | 7 or 19 | 30 | 5 | 0.167 |
| 6 | 7 or 19 | 30 | 5 | 0.197 |
| 4 | 7 or 19 | 40 | 6 | 0.251 |
| 2 | 7 or 19 | 40 | 6 | 0.297 |
| 1 | 7 or 19 | 50 | 7 | 0.345 |
| 1/0 | 19 | 50 | 7 | 0.376 |
| 2/0 | 19 | 50 | 7 | 0.412 |
| 3/0 | 19 | 50 | 7 | 0.452 |
| 4/0 | 19 | 50 | 7 | 0.497 |
| 250 | 19 | 60 | 8 | 0.550 |
| 350 | 37 | 60 | 8 | 0.632 |
| 400 | 37 | 60 | 8 | 0.668 |
| 450 | 37 | 60 | 8 | 0.703 |
| 500 | 37 | 60 | 8 | 0.734 |
| 750 | 61 | 70 | 9 | 0.895 |