Open: $5.9100 USD/lb
03/03/2026
Close: $5.8945 USD/lb
03/02/2026
COMEX Aluminum
Latest: $2.4303 USD/lb
03/01/2026
Previous: $2.4207 USD/lb
02/01/2026
COMEX
CU
5.9100
AL
2.4303
Sign in / Register
Region
English español English français
Building Wire
SPEC: 22050

NMD90 Copper SIMpull® Romex® Brand SPEC22050

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

Contact Us
Download Category Specifications
PDF Excel Table

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 a set of products below for more information:
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

    • © 2026 Southwire Company, LLC. All Rights Reserved.