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Building Wire
SPEC: 10028

Romex® Brand SIMpull® Copper Type NM-B Cable

Nonmetallic-Sheathed Cable. 600 Volt. Copper Conductor. PVC Insulation/Nylon Sheath. PVC Jacket with SIMpull® Technology for Easier Pulling.

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Application & Features

Southwire Romex® Brand SIMpull® Type NM-B (nonmetallic-sheathed) cable may be used for both exposed and concealed work in dry locations as specified in the National Electrical Code®. NM-B cable is primarily used in residential wiring as branch circuits for outlets, switches, and other loads. NM-B cable may be run in air voids of masonry block or tile walls where such walls are not wet or damp locations. Voltage rating for NM-B cable is 600 volts.

Specifications

Select a set of products below for more information:
Cond. Size Conductor Number Cond. Strands Diameter Over Conductor (in) (cm) Inner Layer Thickness (mils) (mm) Ground Size Outer Layer Thickness (mils) (mm) Approx. OD (in) (cm) Copper Weight (lbs/1000') (kgs/km) Approx. Weight (lbs/1000') (kgs/km)
More Options
14 AWG 14 AWG
2.0 2.0
Solid Solid
0.064 0.16
15 0.38
1x14 1x14
25 0.64
0.372 x 0.176 0.94 x 0.45
37 55
61 91
More Options
14 AWG 14 AWG
3.0 3.0
Solid Solid
0.064 0.16
15 0.38
1x14 1x14
25 0.64
0.478 x 0.176 1.21 x 0.45
49 73
81 121
More Options
14 AWG 14 AWG
4.0 4.0
Solid Solid
0.064 0.16
15 0.38
1x14 1x14
30 0.76
0.350 0.89
62 92
95 141
More Options
14 AWG 14 AWG
4.0 4.0
Solid Solid
0.064 0.16
20 0.51
1x14 1x14
30 0.76
0.350 0.89
62 92
96 143
More Options
12 AWG 12 AWG
2.0 2.0
Solid Solid
0.080 0.20
15 0.38
1x12 1x12
25 0.64
0.422 x 0.190 1.07 x 0.48
59 88
87 129
More Options
12 AWG 12 AWG
3.0 3.0
Solid Solid
0.080 0.20
15 0.38
1x12 1x12
25 0.64
0.524 x 0.190 1.33 x 0.48
79 118
115 171
More Options
12 AWG 12 AWG
4.0 4.0
Solid Solid
0.080 0.20
15 0.38
1x12 1x12
30 0.76
0.395 1.00
99 147
138 205
More Options
12 AWG 12 AWG
4.0 4.0
Solid Solid
0.080 0.20
20 0.51
1x12 1x12
30 0.76
0.395 1.00
99 147
138 205
More Options
10 AWG 10 AWG
2.0 2.0
Solid Solid
0.101 0.26
20 0.51
1x10 1x10
25 0.64
0.505 x 0.218 1.28 x 0.55
91 135
126 188
More Options
10 AWG 10 AWG
3.0 3.0
Solid Solid
0.101 0.26
20 0.51
1x10 1x10
25 0.64
0.630 x 0.220 1.60 x 0.56
122 182
168 250
More Options
10 AWG 10 AWG
4.0 4.0
Solid Solid
0.101 0.26
20 0.51
1x10 1x10
30 0.76
0.479 1.22
154 229
206 307
More Options
8 AWG 8 AWG
2.0 2.0
7 7
0.141 0.36
30 0.76
1x10 1x10
30 0.76
0.628 x 0.278 1.60 x 0.71
132 196
190 283
More Options
8 AWG 8 AWG
3.0 3.0
7 7
0.141 0.36
30 0.76
1x10 1x10
30 0.76
0.585 1.49
185 275
260 387
More Options
6 AWG 6 AWG
2.0 2.0
7 7
0.177 0.45
30 0.76
1x10 1x10
30 0.76
0.700 x 0.314 1.78 x 0.80
192 286
260 387
More Options
6 AWG 6 AWG
3.0 3.0
7 7
0.177 0.45
30 0.76
1x10 1x10
30 0.76
0.672 1.71
276 411
365 543
More Options
4 AWG 4 AWG
3.0 3.0
7 7
0.225 0.57
40 1.02
1x8 1x8
30 0.76
0.843 2.14
440 655
575 856
More Options
2 AWG 2 AWG
3.0 3.0
7 7
0.282 0.72
40 1.02
1x8 1x8
30 0.76
0.887 2.25
671 999
830 1235

* 2x2 construction

Cond. Size Conductor Number Min. Bend Radius (in) (cm) Max Pull Tension (lbs) (kg) DC Resistance at 25C (ohms/1000') (ohms/km) AC Resistance at 75C (ohms/1000') (ohms/km) Inductive Reactance (ohms/1000') (ohms/km) Allowable Ampacity Raceway 75C Allowable Ampacity Raceway 90C
More Options
14 AWG 14 AWG
2.0 2.0
0.8 2.03
65 29.48
2.631 3.92
3.170 4.72
0.058 0.09
20 20
25 25
More Options
14 AWG 14 AWG
3.0 3.0
0.9 2.29
98 44.45
2.631 3.92
3.170 4.72
0.058 0.09
20 20
25 25
More Options
14 AWG 14 AWG
4.0 4.0
1.4 3.56
105 47.63
2.631 3.92
3.170 4.72
0.058 0.09
16 16
20 20
More Options
14 AWG 14 AWG
4.0 4.0
1.4 3.56
105 47.63
2.631 3.92
3.170 4.72
0.058 0.09
16 16
20 20
More Options
12 AWG 12 AWG
2.0 2.0
1.0 2.54
104 47.17
1.662 2.47
2.002 2.98
0.054 0.08
25 25
30 30
More Options
12 AWG 12 AWG
3.0 3.0
1.1 2.79
156 70.76
1.662 2.47
2.002 2.98
0.054 0.08
25 25
30 30
More Options
12 AWG 12 AWG
4.0 4.0
1.6 4.06
167 75.75
1.662 2.47
2.002 2.98
0.054 0.08
20 20
24 24
More Options
12 AWG 12 AWG
4.0 4.0
1.6 4.06
167 75.75
1.662 2.47
2.002 2.98
0.054 0.08
20 20
24 24
More Options
10 AWG 10 AWG
2.0 2.0
1.2 3.05
166 75.30
1.040 1.55
1.253 1.86
0.050 0.07
35 35
40 40
More Options
10 AWG 10 AWG
3.0 3.0
1.3 3.30
249 112.94
1.040 1.55
1.253 1.86
0.050 0.07
35 35
40 40
More Options
10 AWG 10 AWG
4.0 4.0
1.9 4.83
265 120.20
1.040 1.55
1.253 1.86
0.050 0.07
28 28
32 32
More Options
8 AWG 8 AWG
2.0 2.0
1.7 4.32
264 119.75
0.653 0.97
0.786 1.17
0.052 0.08
50 50
55 55
More Options
8 AWG 8 AWG
3.0 3.0
2.3 5.84
396 179.62
0.653 0.97
0.786 1.17
0.052 0.08
50 50
55 55
More Options
6 AWG 6 AWG
2.0 2.0
2.0 5.08
419 190.06
0.411 0.61
0.495 0.74
0.051 0.08
65 65
75 75
More Options
6 AWG 6 AWG
3.0 3.0
2.7 6.86
629 285.31
0.411 0.61
0.495 0.74
0.051 0.08
65 65
75 75
More Options
4 AWG 4 AWG
3.0 3.0
3.4 8.64
1001 454.05
0.258 0.38
0.310 0.46
0.048 0.07
85 85
95 95
More Options
2 AWG 2 AWG
3.0 3.0
3.5 8.89
1592 722.12
0.162 0.24
0.195 0.29
0.045 0.07
115 115
130 130

* Ampacities based upon 2023 NEC Table 310.16 and do not take into account the overcurrent protection limitations in NEC 240.4(D) of 15 Amps for 14 AWG CU, 20 Amps for 12 AWG CU, and 30 Amps for 10 AWG CU (independent of the conductor temperature rating and stranding if size is present in table). Also, see NEC sections 310.15 and 110.14(C) for additional requirements.
* Inductive impedance is based on non-ferrous conduit with one diameter spacing center-to-center.

Standards & References

  • ASTM B3 Soft or Annealed Copper Wire
  • ASTM B8 Concentric-Lay-Stranded Copper Conductors
  • UL 719 Nonmetallic-Sheathed Cables
  • RoHS-2 (European Directive 2011/65/EU)
  • Federal Specification A-A-59544
  • NOM-063-SCFI Electrical Products – Conductors – Safety Requirements

Construction

  1. Conductor: Bare copper per ASTM B3. Sizes #14 AWG - #10 AWG are solid. Sizes #8 AWG - #2 AWG are Class B compressed stranded per ASTM B8
  2. Insulation: All phases and neutral(s) are insulated with Polyvinyl Chloride (PVC) with Nylon Sheath 2/C: Black, White 3/C: Black, Red, White 4/C: Black, Red, Blue, White
  3. Ground: Solid soft drawn bare copper with kraft paper wrap
  4. Binder: Kraft paper
  5. Jacket: Polyvinyl Chloride (PVC) jacket utilizing SIMpull Technology

Resources

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