8/3 NM-B

IUSA Wire 8/3 NM-B Cable with Ground is a heavy-duty, residential-grade building cable designed for indoor wiring when you need 8 AWG plus an extra conductor. Built with three insulated copper conductors (black, red, and white) plus a bare copper ground, it’s ideal for higher-demand residential applications and multi-conductor circuit runs where a heavier gauge is required.

Made for clean installs, IUSA Wire NM-B delivers consistent quality for smoother pulls, easier stripping, and secure terminations—perfect for electrical upgrades, remodels, and new construction where reliability matters.

Common uses

• Higher-load indoor residential circuits needing an additional conductor (application-dependent)
• Wiring runs where 8 AWG is specified for load/voltage drop considerations
• Remodels, additions, and larger circuit upgrades where permitted/appropriate

Key features

• 8/3 configuration: black + red + white insulated conductors + bare ground
• Copper conductors
• For dry, indoor applications (per NM-B use guidelines)
• Built for electricians, contractors, and serious DIYers