2 AWG THHN/THWN-2 Copper Building Wire | Stranded 600V

“The definitive standard for 100-amp residential sub-panels and heavy commercial feedersengineered with dual-rated THHN/THWN-2 insulation and a friction-reducing nylon jacket for maximum reliability in 600V applications.”

Why Electricians Choose 2 AWG THHN/THWN-2 Copper

The #2 AWG copper building wire is a high-performance feeder specified for 100-amp to 115-amp circuits. It is the go-to choice for powering detached workshops, large home additions, and industrial machinery. Our stranded construction is vital at this gauge, providing the necessary flexibility to “train” the wire inside a panel and land it securely in large lugs.

• Dual Rated (THHN/THWN-2): Engineered for dry locations up to 90C (THHN) and wet locations (THWN-2), providing maximum versatility for indoor and outdoor conduits.

• Tough PVC/Nylon Jacket: The high-heat and moisture-resistant PVC insulation is protected by a tough, friction-reducing Nylon outer sheath, making for easier pulls through tight bends.

• High-Conductivity Copper: Manufactured with soft-annealed stranded copper to provide maximum flexibility and superior electrical conductivity for branch circuits and feeders.

• Oil & Gasoline Resistant: The specialized jacket is designed to resist chemical degradation, making it ideal for industrial environments and service station wiring.

Common 2 AWG THHN/THWN-2 Applications

• 125-Amp Sub-Panels: The standard conductor for high-capacity sub-panels in modern luxury homes and commercial retail spaces.

• 100-Amp Long-Distance Feeders: The go-to choice for 100A runs to detached buildings where voltage drop is a concern.

• Standby Generator Sets: Frequently used to connect 20kW to 26kW home standby generators to the automatic transfer switch (ATS).

• Commercial EV Charging: Ideal for powering dual-port Level 2 charging stations in parking garages and workplaces.

• Industrial HVAC: Primary power feed for large commercial rooftop air handlers and refrigeration compressors.

Technical Specifications

ENGINEERING OVERVIEW: 2 AWG STR THHN 600V

• APPLICATION: High-capacity feeder wire for 100A sub-panels, service entrances, and industrial power distribution.

• VOLTAGE: Rated for 600 Volts.

• CONDUCTORS: Stranded soft-annealed copper.

• INSULATION: Heat and moisture-resistant PVC (Polyvinyl Chloride).

• JACKET: Tough, abrasion-resistant Nylon.

• TEMPERATURE: 90C Dry (THHN), 90C Wet (THWN-2).

• Ampacity: 95amps @ 60C | 115 amps at 75C | 130 amps at 90C

Technical Note: All values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyers responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.