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Building Wire
SPEC: 22050

NMD90 Copper SIMpull® Romex® Brand SPEC22050

300 Volts / -25ºC Min, 90ºC Max. Copper Conductors

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Application & Features

Southwire's Romex® SIMpull® NMD90 cables may be used for both exposed work in dry locations or concealed work in dry or damp locations.
The maximum allowable conductor temperature is 90°C. The minimum recommended installation temperature is -25°C for two-conductor cables and -10°C for three-conductor cables (with suitable handling procedures). Material should be properly stored above 0°C for 24 hours prior to installation. The maximum voltage rating for all intended applications is 300 volts. Consult the Canadian Electrical Code for further information related to applications.

Specifications

Select more options below for part numbers, packaging, and color options:
Cond. Size Conductor Number Cond. Strands Diameter Over Conductor (in) (cm) Insulation Thickness (mils) (mm) Ground Size Jacket 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 2
Solid Solid
0.064 0.16
35 0.89
1x14 1x14
30 0.76
0.196 x 0.396 0.50 x 1.01
37 55
69 103
More Options
14 AWG 14 AWG
3 3
Solid Solid
0.064 0.16
35 0.89
1x14 1x14
30 0.76
0.388 0.99
50 74
90 134
More Options
12 AWG 12 AWG
2 2
Solid Solid
0.080 0.20
35 0.89
1x14 1x14
30 0.76
0.213 x 0.430 0.54 x 1.09
51 76
88 131
More Options
12 AWG 12 AWG
3 3
Solid Solid
0.080 0.20
35 0.89
1x14 1x14
30 0.76
0.428 1.09
72 107
118 176
More Options
10 AWG 10 AWG
2 2
Solid Solid
0.101 0.26
35 0.89
1x12 1x12
30 0.76
0.234 x 0.488 0.59 x 1.24
82 122
124 185
More Options
10 AWG 10 AWG
3 3
Solid Solid
0.101 0.26
35 0.89
1x12 1x12
30 0.76
0.479 1.22
115 171
168 250
More Options
8 AWG 8 AWG
2 2
7 7
0.141 0.36
40 1.02
1x10 1x10
45 1.14
0.316 x 0.694 0.80 x 1.76
133 198
210 313
More Options
8 AWG 8 AWG
3 3
7 7
0.141 0.36
40 1.02
1x10 1x10
45 1.14
0.635 1.61
186 277
283 421
More Options
6 AWG 6 AWG
2 2
7 7
0.177 0.45
50 1.27
1x8 1x8
45 1.14
0.374 x 0.800 0.95 x 2.03
213 317
339 504
More Options
6 AWG 6 AWG
3 3
7 7
0.177 0.45
50 1.27
1x8 1x8
45 1.14
0.775 1.97
297 442
433 644
More Options
4 AWG 4 AWG
2 2
7 7
0.225 0.57
50 1.27
1x8 1x8
60 1.52
0.839 2.13
311 463
463 689
More Options
3 AWG 3 AWG
2 2
7 7
0.252 0.64
50 1.27
1x6 1x6
80 2.03
0.937 2.38
410 610
610 908
More Options
3 AWG 3 AWG
3 3
7 7
0.252 0.64
50 1.27
1x6 1x6
80 2.03
1.029 2.61
574 854
822 1223
More Options
12 null 12 null
2 2
Solid Solid
0.080 0.20
35 0.89
1x14 1x14
30 0.76
0.213 x 0.430 0.54 x 1.09
51 76
88 131
Cond. Size Conductor Number Min. Bend Radius (in) (cm) 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 2
1.600 4.06
2.631 3.92
3.170 4.72
0.058 0.09
20 20
25 25
More Options
14 AWG 14 AWG
3 3
1.500 3.81
2.631 3.92
3.170 4.72
0.058 0.09
20 20
25 25
More Options
12 AWG 12 AWG
2 2
1.600 4.06
1.662 2.47
2.002 2.98
0.054 0.08
25 25
30 30
More Options
12 AWG 12 AWG
3 3
1.700 4.32
1.662 2.47
2.002 2.98
0.054 0.08
25 25
30 30
More Options
10 AWG 10 AWG
2 2
2.000 5.08
1.040 1.55
1.253 1.86
0.050 0.07
35 35
40 40
More Options
10 AWG 10 AWG
3 3
1.900 4.83
1.040 1.55
1.253 1.86
0.050 0.07
35 35
40 40
More Options
8 AWG 8 AWG
2 2
2.800 7.11
0.653 0.97
0.786 1.17
0.052 0.08
50 50
55 55
More Options
8 AWG 8 AWG
3 3
2.500 6.35
0.653 0.97
0.786 1.17
0.052 0.08
50 50
55 55
More Options
6 AWG 6 AWG
2 2
3.200 8.13
0.411 0.61
0.495 0.74
0.051 0.08
65 65
75 75
More Options
6 AWG 6 AWG
3 3
3.100 7.87
0.411 0.61
0.495 0.74
0.051 0.08
65 65
75 75
More Options
4 AWG 4 AWG
2 2
3.300 8.38
0.258 0.38
0.310 0.46
0.048 0.07
85 85
95 95
More Options
3 AWG 3 AWG
2 2
3.700 9.40
0.205 0.31
0.246 0.37
0.047 0.07
100 100
115 115
More Options
3 AWG 3 AWG
3 3
5.100 12.95
0.205 0.31
0.246 0.37
0.047 0.07
100 100
115 115
More Options
12 null 12 null
2 2
1.600 4.06
1.662 2.47
2.002 2.98
0.054 0.08
25 25
30 30

* Ampacity values based on Canadian Electrical Code, Part 1 2024 Table 2 and do not take into account the overcurrent protection limitations in CEC Rule 14-104(2) of 15 A for 14 AWG Cu, 20 A for 12 AWG Cu, and 30 A for 10 AWG Cu (independent of the conductor temperature rating and stranding). See also CEC Rules 4-004 and 4-006 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
  • CSA C22.2 No. 48 non-metallic sheathed cable
  • ICEA S-95-658 (NEMA WC70) Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy
  • FT1 Flame Test (1,706 BTU/Hr nominal - Vertical Wire Flame Test)

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 are insulated with Polyvinyl Chloride (PVC) with Nylon Sheath
  3. Jacket:Polyvinyl Chloride (PVC) jacket utilizing SIMpull® Technology.

Conductor Color Color Code:
  • 2/C: Black, White
  • 3/C: Black, White, Red

    • Jacket Color Color Code:
  • White: General Residential Wiring
  • Red: 2 Black and Red conductors - 208V-240V Circuits (no neutral)
  • Orange: No. 10 AWG General Residential Wiring
  • Yellow: No. 12 AWG General Residential Wiring
  • Blue: No. 14 AWG - 2 black and white conductors - 120V Arc Fault Circuit Interupter Applications

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