6/3 NM-B

IUSA Wire 6/3 NM-B Cable with Ground is a heavy-duty, residential-grade building cable designed for indoor wiring when you need 6 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.

Engineered for professional installs, IUSA Wire NM-B delivers consistent construction for smoother pulls, cleaner stripping, and secure terminations—perfect for major electrical upgrades, remodels, and new builds (application-dependent).

Common uses

• High-demand indoor residential circuits needing an additional conductor (application-dependent)
• Larger wiring runs where 6 AWG is specified for load/voltage drop considerations
• Remodels, additions, and heavy circuit upgrades where permitted/appropriate

Key features

• 6/3 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