18 AWG Solid Copper Wire Insulated

Our 18 AWG insulated solid copper wire is a high-quality, UL-listed electrical wire designed for durability, safety, and performance. Rated as THHN / THWN-2, this wire is suitable for use in both dry and wet locations and can handle up to 600 volts, making it ideal for residential, commercial, and industrial wiring applications.

  • 18 Awg Solid Copper Wire Insulated 1024x1024

18 AWG Solid Copper Wire


THHN / THWN-2 Insulated, 600V Rated

  • Conductor Type Solid bare copper
  • Wire Gauge 18 AWG
  • Insulation Heat-resistant PVC or Nylon (available in THHN/THWN, THWN-2, or TW/THW types)
  • Voltage Rating 600V
  • Temperature Rating 90°C in dry locations (THHN) 75°C in wet locations (THWN-2)
  • Certifications UL Listed, RoHS Compliant, NEC 310.10
  • Colors Available Black, Red, White, Green, Blue, Yellow (custom colors available on request)
  • Packaging Available in coils, spools, or custom cut lengths


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Our 18 AWG insulated solid copper wire is a high-quality, UL-listed electrical wire designed for durability, safety, and performance. Rated as THHN / THWN-2, this wire is suitable for use in both dry and wet locations and can handle up to 600 volts, making it ideal for residential, commercial, and industrial wiring applications.

It features a solid bare copper conductor, a heat- and moisture-resistant thermoplastic PVC insulation, and a nylon jacket, offering superior protection and long service life.


Common Applications:

  • Lighting and outlet branch circuits

  • Internal wiring for panels and control cabinets

  • Conduit and raceway wiring

  • Signal and control wiring

  • HVAC systems and industrial machines


Benefits of Our 18 AWG THHN/THWN-2 Wire:

Strong, consistent conductivity with high-purity solid copper
Resistant to oil, gas, abrasion, and chemicals
Smooth nylon jacket makes pulling through conduit easier
Meets UL and NEC standards for safety and reliability
Available in custom lengths and multiple colors


Why Choose TOT Wire & Cable?

As a leading wire and cable supplier, TOT Wire & Cable delivers reliable, affordable solutions for electrical professionals. Our 18 gauge solid copper wire meets all key industry certifications and is backed by expert support and fast shipping.

We serve contractors, OEMs, panel builders, and resellers across the country.


Request a Quote or Sample

Looking for the best deal on 18 AWG Insulated Solid Copper Wire? Contact TOT Wire & Cable today for pricing, bulk order discounts, and free technical consultation.

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