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12/2 NM-B Wire w/ Ground

12/2 NM-B Wire w/ Ground

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$385.00at Testing Developer StoreChecked 1 h ago

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Price facts

  • Lowest price today: $385.00 at Testing Developer Store (checked Nov 10, 2026).

12/2 NM-B Wire w/ Ground prices at every store

  • Testing Developer StoreNew

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    $385.00Checked 1 h ago
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About the 12/2 NM-B Wire w/ Ground

12/2 Type NM-B Wire with Ground

Applications:

Non-metallic sheathed NM-B cable is used in normally dry installations in residential wiring, as branch circuits for outlets, lighting and other residential loads. Its applications are outlined in NEC 2008 and NEC 2011 Article 334. NM-B is rated at 600 volts and although it is rated at a conductor temperature of 90°C dry , its ampacity is limited to 60°C according to the NEC 2008 and NEC 2011. It may be fished through masonry or tile walls, where not exposed or subject to excessive moisture or dampness. NM-B cables are LEAD FREE and RoHS compliant.

Also Known As: NM-B - 12 AWG, NM-B - Type, Building Wire, Wire, Cables, Cords, Romex ®

Standards:

Meets or exceeds all applicable ASTM specifications

UL 83: Thermoplastic Insulated Wires and Cables

UL 719: Non-Metallic Cables

Federal Specification A-A-59544 and requirements of the NEC.

Voltage rating - 600 volts.

Construction:

Conductors:

Solid annealed soft bare copper per ASTM B3.

Insulation:

Color coded polyvinyl chloride (PVC) compound with a nylon covering meeting the required thickness of Type THHN. Conductor insulation is rated 90°C.

Ground:

Soft, bare copper solid per ASTM B3 and stranded per ASTM B3 and B8

Sheath:

30 mil color coded PVC sheath rated 90°C is applied over the completed assembly

12/2 NM-B Cable Specifications*:

Size: 12 AWG

Number of Conductors: 2 + 1 Ground

PVC Insulation Thickness: 0.380 mm / 0.015 inches

Ground Wire Size: 12 AWG

Specifications

Conductor size
12 AWGSource

Questions and answers

Where is the 12/2 NM-B Wire w/ Ground cheapest?
At Testing Developer Store, for $385.00, as of our latest check.

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Buying guides that pick the 12/2 NM-B Wire w/ Ground

  • Best electrical wire for home wiring
Number of conductors
2Source
Stranding
SolidSource
Ground size
1x12Source
Voltage rating
600 voltsSource
Jacket color
YELLOWSource
Insulation thickness
20 milsSource
Jacket thickness
25 milsSource
Approx. OD
0.422 x 0.190Source
Approx. weight
87 lbs/1000'Source
Copper weight
59 lbs/1000'Source
Length
250 ftSource
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