1' 4-Gauge Solid SD Bare Copper Grounding Wire (Sold by Foot), Min 25 feet

Southwire BARECUSLD4R – 4 AWG Solid Bare Copper Grounding Wire The Southwire 4 AWG solid bare copper conductor is designed for direct burial and grounding applications in accordance with NEC Article 250. Manufactured from annealed solid copper, this wire offers high conductivity and long-term corrosion resistance, making it suitable for grounding electrode systems, bonding conductors, and other permanent grounding installations. Professional Features Material: Solid annealed copper for maximum conductivity and current-carrying capacity Stranding: Solid conductor (non-stranded), suitable for secure mechanical connections Bare Conductor: No insulation; intended for use in grounding systems, service equipment, and earth electrodes Direct Burial Rated: Approved for underground installation in accordance with code UL Listed: Complies with UL standards for grounding conductors and recognized by the NEC Technical Specifications Gauge: 4 AWG Resistance: 0.249 ohms per 1,000 feet at 20°C Operating Temperature: Up to 75°C (167°F) in dry locations Conductor Type: Solid bare copper Standard Compliance: UL 83, UL 1581, and NEC requirements for grounding Application: Bonding and grounding for residential, commercial, and industrial systems Packaging: Available by the foot; minimum cut length may apply Application Scope This wire is intended for grounding and bonding of electrical systems in accordance with NEC requirements. Common uses include: Grounding electrode conductor (GEC) Bonding of service enclosures and raceways Lightning protection system grounding Equipment grounding for panelboards and transformers Installation Considerations This wire is easily formed and installed in mechanical lugs, ground clamps, or exothermic welding applications. For direct burial, ensure proper depth per NEC 250.53 guidelines. While straightforward, grounding should always be performed by a qualified electrician to ensure system compliance, safety, and effective fault clearing.