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This is 2-3 WG NM-B non-metallic sheathed cable, the standard branch-circuit wiring for dry indoor residential work: outlets, lighting and other household loads. It carries two current-carrying conductors plus a bare ground in a color-coded PVC sheath, is rated 600 volts, and meets UL 83, UL 719 and ASTM specs. The conductor insulation is rated 90°C, but code limits ampacity to the 60°C column, so size it on that basis. It is the same class of cable as Romex NM-B and suits anyone roughing in or repairing dry interior circuits.
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This is 2 AWG, 3-conductor non-metallic sheathed cable (NM-B) with a ground wire. It is used in normally dry installations in residential wiring, as branch circuits for outlets, lighting and other residential loads. It is equivalent to Romex NM-B. It may be fished through masonry or tile walls where it is not exposed or subject to excessive moisture or dampness.
The conductors are annealed soft bare copper, and the ground is soft bare copper. Insulation is color-coded PVC with a nylon covering, meeting the required thickness of Type THHN and rated 90°C. A 30 mil color-coded PVC sheath rated 90°C covers the finished assembly.
The cable is rated at 600 volts. It is rated for a conductor temperature of 90°C dry, but its ampacity is limited to 60°C under NEC 2008 and NEC 2011. It is lead free and RoHS compliant.
