Non-Metallic Romex Sheathed Cable With Ground, 12/3, 1000 Ft.

Introducing the Southwire 12/3 NM‑B Romex cable, a premium non‑metallic sheathed wire designed for residential and light‑commercial wiring projects. This 1000‑foot reel delivers a robust copper conductor core with an integrated grounding strand, all encased in a durable, flame‑retardant jacket that resists abrasion and moisture.

Why choose this cable? Its flexible yet sturdy construction simplifies pull‑through in conduit‑free runs, while the copper conductors ensure low resistance and reliable power delivery. The built‑in ground enhances safety, meeting NEC requirements for protected circuits in kitchens, bathrooms, and outdoor lighting.

• 12/3 Gauge Configuration: Three insulated copper conductors plus a grounding wire provide ample capacity for 20‑amp circuits and multi‑wire branch circuits.
• Non‑Metallic Sheath: Lightweight NM‑B jacket reduces installation time and eliminates the need for additional protective conduit.
• 1000‑Foot Reel: Long continuous length minimizes splices, cuts down labor costs, and ensures consistent performance across large projects.
• Grounded Design: Integrated ground wire meets code‑mandated safety standards for fault protection and equipment grounding.
• Southwire Quality Assurance: Backed by a trusted brand, the cable undergoes rigorous testing for voltage rating, temperature tolerance, and fire resistance.

Experience dependable wiring confidence: Whether you’re upgrading a home remodel or outfitting a new build, this Southwire 12/3 NM‑B Romex cable delivers the performance, safety, and convenience electricians demand. Its easy‑to‑handle reel, superior copper conductivity, and code‑compliant grounding make it the go‑to choice for reliable electrical installations.