The versatile mainstay of modern residential electrical systems, this 12 AWG NM-B Copper Building Wire is specifically engineered for 20-amp branch circuits. Featuring two high-conductivity copper conductors and a dedicated bare grounding wire, this cable is easily identified by its signature high-visibility yellow jacket, ensuring quick identification for installers and inspectors alike.

Why Choose 12/2 NM-B Copper Building Wire?

This 2-conductor (with ground) configuration is a fundamental requirement for the increased power demands of contemporary homes. Designed for interior dry-location wiring, the Type NM-B construction allows for rapid routing through wooden framing without the need for conduit, significantly reducing labor time and material costs compared to traditional piping methods.

• Color-Coded Circuit Identification: The bright yellow PVC jacket provides an immediate visual signal that the circuit is rated for 20 amps, helping to prevent cross-wiring with 15-amp (white) or 30-amp (orange) circuits.

• Superior Copper Conductivity: Annealed (soft) copper conductors provide the reliable electrical performance and low resistance necessary for consistent power delivery to sensitive electronics and kitchen appliances.

• Low-Friction Pulling Jacket: The outer PVC sheath is formulated with a slick finish, allowing the cable to glide through bored studs and floor joists with minimal effort.

• Reliable Dual-Layer Insulation: Each conductor is shielded with heat-resistant PVC and topped with a tough nylon jacket (THHN/THWN-2), providing enhanced protection against abrasions during the rough-in stage.

Technical Specifications: 12/2 NM-B Copper

• Conductor Size: 12 AWG

• Number of Conductors: 2 (plus Ground)

• Color Code: Black, White, Bare Ground

• Jacket Color: Yellow

• Ampacity: 20 Amps at 60C (NEC Table 310.16)

• Voltage: 600V

• Insulation: Polyvinyl Chloride (PVC) with Nylon Covering (Type THHN)

• Max Temp: 90C (Dry locations only)

• Conductor Material: Annealed (Soft) Copper

• Standards: UL Standard 83, UL Standard 719, ASTM B-3, B-8, Federal Spec A-A-59544

Common Applications

• Kitchen Branch Circuits: The standard choice for GFCI-protected outlets serving countertops and heavy kitchen appliances.

• Dedicated Laundry Room Circuits: Frequently utilized for washing machines and shared laundry area outlets.

• Home Office & Entertainment Centers: Ideal for powering computer workstations and home theater systems that require a stable, 20-amp dedicated feed.

• Bathroom GFCI Circuits: The industry standard for wiring bathroom receptacles to handle high-wattage hair dryers and personal grooming tools.

Technical Note: All values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyers responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes. NM-B is for dry, indoor use only.

*All values are nominal and subject to correction. Ampacity is based on the National Electrical Code (NEC) 60C column for NM-B cable, regardless of the conductor temperature rating.