THW 12 AWG Copper Wire – 7-Strand Building Cable Rated 600V

Building wire cable THW 12 AWG with a copper conductor composed of 7 strands, rated for 600V, is an excellent choice for various electrical applications. The 12 AWG size is suitable for higher current loads, such as outlets, appliances, and lighting circuits in residential, commercial, and industrial settings. The stranded copper conductor offers increased flexibility, which makes installation easier in spaces with bends or movement. The THW insulation provides high heat resistance and durability, ensuring safety and longevity of the wiring. Always ensure proper installation according to local electrical codes and standards for optimal performance and safety.

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  • Building Wire Cable Thw 12 Awg Copper Conductor 7 Strands 600v

THW 12 AWG Copper Wire – 7-Strand Building Cable Rated 600V

Building Wire Cable THW 12 AWG Copper Conductor 7 Strands 600V

  • Size of AWG 12
  • Number of Strands 7
  • Voltage 600V
  • Number of cores Single Core
  • Package 100 Meters One Roll with Export Wooden Case & Pallet

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THW 12 AWG copper wire is a widely used building wire suitable for lighting and power circuits in industrial, commercial, and residential environments. Manufactured with stranded copper conductors and insulated with durable PVC (polyvinyl chloride), this 12 gauge THW wire delivers consistent performance and safety in both dry and wet locations. It is rated for 600 volts and meets all key requirements under the National Electrical Code (NEC).

📌 Applications – THW 12 AWG Stranded Copper Building Wire

This THW wire 600V is ideal for:

  • Indoor and outdoor electrical wiring

  • Lighting and power branch circuits

  • Residential, commercial, and industrial buildings

  • Wiring through conduits, trays, or raceways

  • Suitable for use in wet or dry environments (up to 75°C)

Its construction makes it a reliable choice when higher mechanical strength and flexibility are required.

⚙️ Cable THW 12 Construction

  • Conductor: Single-core annealed copper, solid or 7-strand, tinned or bare per ASTM B-3, B-8, and B-33

  • Insulation: High-quality thermoplastic PVC insulation, UL Type THW

  • Identification: Printed surface marking indicating manufacturer, conductor size (12 AWG), voltage rating (600V), and wire type (THW)

📐 Technical Specifications – 12 Gauge THW Copper Wire

Parameter Specification
Conductor Size 12 AWG
Stranding 7-stranded annealed copper
Insulation Thickness 45 mils
Outer Diameter (O.D.) 0.151 inches
Voltage Rating 600 Volts
Max Operating Temp. 75°C (dry and wet locations)
Ampacity 25 Amps (per NEC Table 310.16)
Approx. Weight per 1000 ft 28.3 lbs

🔒 Standards & Certifications

Our 12 AWG THW copper cable complies with the following industry standards:

  • ASTM B-3 – Annealed or soft copper wire

  • ASTM B-8 – Concentric lay stranded copper conductors

  • UL 83 – Thermoplastic-insulated wires and cables

  • NEMA WC-5 / ICEA S-61-402 – Thermoplastic-insulated power distribution cables

✅ Key Features of THW 12 Wire

  • ✅ High Conductivity: Pure copper core ensures efficient electrical performance

  • ✅ Flexible Installation: 7-strand construction simplifies routing through conduit

  • ✅ Thermal Resistance: Withstands up to 75°C in wet and dry environments

  • ✅ Chemical & Abrasion Resistant: Durable PVC insulation for harsh conditions

  • ✅ UL Listed & NEC Compliant: Safe for residential, commercial, and industrial wiring

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