Southwire 8/3NM-WGX100 Building Wire

Southwire 8/3NM-WGX100 Building Wire

The Southwire 8/3 NM-B Wire (100 ft) is a heavy-duty residential building cable built for serious electrical work where reliability isn’t optional. Featuring annealed (soft) copper conductors with a dedicated ground wire, this cable is designed for branch circuit wiring to power outlets, switches, and larger loads with confidence. The SIMpull® jacket makes pulling through studs and tight spaces noticeably easier, while the durable construction meets strict UL and NEC standards. In short, it’s the kind of wire you run once—and don’t worry about again.

Country of Origin
Varies by production batch

Key Features / Specifications

• Product Type: NM-B (Non-Metallic Sheathed) Building Wire
• Wire Size: 8 AWG
• Configuration: 8/3 with ground (3 conductors + ground)
• Length: 100 ft
• Conductor Material: Annealed (soft) copper
• Stranding: 7 strands per conductor
• Insulation: PVC insulation
• Sheath Material: Nylon jacket
• Sheath Color: Black (color-coded for easy identification)
• Voltage Rating: 600 V
• Current Rating: 40 A
• Operating Temperature: Up to 90°C (ampacity limited to 60°C per NEC)
• Installation Type: Suitable for exposed and concealed work in dry locations
• Standards Compliance: UL 83, UL 719, Federal Spec A-A-59544, NEC compliant
• Special Features: SIMpull® jacket for easier pulling and reduced friction

Ideal For

• Residential branch circuit wiring for outlets, switches, and heavier loads
• Running wire through stud walls, ceilings, and dry masonry spaces
• Electricians who want easier pulls with less jacket resistance
• Installations requiring reliable copper conductors and NEC compliance
• Projects where you’d rather not wrestle wire like it’s a stubborn garden hose