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Southwire 10/3 NM-B (Romex) Cable Southwire 10/3 NM-B (Romex) Cable
Southwire 10/3 NM-B (Romex) Cable Click to Zoom

Southwire 10/3 NM-B (Romex) Cable

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SKU
10/3 ROMEX PER FOOT

Southwire 10/3 NM-B (Romex) CableAdditional specifications Additional specifications · Installation Individual conductor installation restrictions Individual conductors are not listed or marked as THHN or another NEC-recognized conductor type and must not be installed apart from the complete Type NM-B cable. Conductors routed inside panelboards or boxe...

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Description Specifications

Product Overview

Southwire 10/3 NM-B (Romex) Cable

Additional specifications

Additional specifications · Installation

Individual conductor installation restrictions Individual conductors are not listed or marked as THHN or another NEC-recognized conductor type and must not be installed apart from the complete Type NM-B cable. Conductors routed inside panelboards or boxes without the jacket for termination are considered part of the complete cable.
Permitted installation locations Suitable for exposed or concealed work in dry locations; may be run in masonry-block or tile-wall air voids only where the walls are not wet or damp.
Minimum bending radius 0.9 in

Additional specifications · Compliance

RoHS specification RoHS-2 (European Directive 2011/65/EU)
Conductor wire specification ASTM B3 — soft or annealed copper wire
NOM safety standard NOM-063-SCFI — Electrical Products – Conductors – Safety Requirements
UL product standard UL 719 — Nonmetallic-Sheathed Cables
Federal specification A-A-59544

Additional specifications · Application

Typical application Primarily used in residential wiring as branch circuits for outlets, switches, and other loads.

Additional specifications · Electrical

Allowable ampacity and application limit 30 A at 60°C and 40 A at 90°C per Table 2. Use ampacity is limited to the 60°C-conductor basis; NEC 240.4(D) limits overcurrent protection for 10 AWG copper to 30 A.
Individual conductor insulation temperature rating 90°C, for terminations in lighting fixtures
Ampacity basis Based on 2023 NEC Table 310.16
Allowable ampacity at 90°C (table value) 40 A
Inductive reactance 0.05 at 60 Hz; basis is non-ferrous conduit with one-diameter center-to-center spacing. Ω/1000 ft
Voltage rating 600 V
AC resistance at 75°C 1.291 Ω/1000 ft
NEC 240.4(D) overcurrent-protection limitation 30 A
Allowable ampacity at 60°C 30 A
DC resistance at 25°C 1.04 Ω/1000 ft

Additional specifications · Construction

Conductor insulation construction PVC insulation with a nylon sheath
Jacket material Polyvinyl chloride (PVC)
Binder material Kraft paper
Ground wire wrap Kraft paper wrap
Phase-conductor insulation color code Black, red, and white

Technical Specifications

Product information and specifications for the selected item.

SKU: 10/3 ROMEX PER FOOT

Product Information

BrandSouthwire
MPN10/3 ROMEX PER FOOT
SKU10/3 ROMEX PER FOOT
CategoryNM-B Cable

Key Specs

Wire Gauge10/3
Total Wire Length (ft.)1
Conductor MaterialCopper
Stranded or SolidSolid
Jacket ColorPink

Electrical & Conductor

Wire Gauge10/3
Conductor MaterialCopper
Stranded or SolidSolid
Conductor wire specificationASTM B3 — soft or annealed copper wire
Allowable ampacity and application limit30 A at 60°C and 40 A at 90°C per Table 2. Use ampacity is limited to the 60°C-conductor basis; NEC 240.4(D) limits overcurrent protection for 10 AWG copper to 30 A.
Individual conductor insulation temperature rating90°C, for terminations in lighting fixtures
Ampacity basisBased on 2023 NEC Table 310.16
Conductor insulation constructionPVC insulation with a nylon sheath
Allowable ampacity at 90°C (table value)40 A
Inductive reactance0.05 at 60 Hz; basis is non-ferrous conduit with one-diameter center-to-center spacing. Ω/1000 ft
Voltage rating600 V
AC resistance at 75°C1.291 Ω/1000 ft
NEC 240.4(D) overcurrent-protection limitation30 A
Ground wire wrapKraft paper wrap
Allowable ampacity at 60°C30 A
Phase-conductor insulation color codeBlack, red, and white
DC resistance at 25°C1.04 Ω/1000 ft

Package & Length

Bundle/SingleSingle Product
Total Wire Length (ft.)1
Wire Cut TypeCut By-The-Foot

Jacket & Features

Jacket ColorPink
FeaturesJacketed
Individual conductor installation restrictionsIndividual conductors are not listed or marked as THHN or another NEC-recognized conductor type and must not be installed apart from the complete Type NM-B cable. Conductors routed inside panelboards or boxes without the jacket for termination are considered part of the complete cable.
RoHS specificationRoHS-2 (European Directive 2011/65/EU)
Typical applicationPrimarily used in residential wiring as branch circuits for outlets, switches, and other loads.
Jacket materialPolyvinyl chloride (PVC)
Permitted installation locationsSuitable for exposed or concealed work in dry locations; may be run in masonry-block or tile-wall air voids only where the walls are not wet or damp.
NOM safety standardNOM-063-SCFI — Electrical Products – Conductors – Safety Requirements
UL product standardUL 719 — Nonmetallic-Sheathed Cables
Binder materialKraft paper
Federal specificationA-A-59544

Dimensions & Weight

Height (in.)0.63
Length (in.)12
Weight (lb.)0.167
Minimum bending radius0.9 in

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