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01/23/2026
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01/22/2026
COMEX Aluminum
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01/01/2026
Previous: $2.1559 USD/lb
12/01/2025
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Building Wire
SPEC: 22053

NMWU Copper SPEC22053

Copper Conductors, 300V / -40ºC MIN, 60ºC MAX, PVC Insulation, PVC Jacket

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Application & Features

Southwire's CSA-NWMU cables may be used for underground installations, including direct burial. It may also be used for environments exposed to the weather in dry and wet locations. The maximum allowable conductor temperature is 60°C. The minimum recommended installation temperature is -40°C for two-conductor cables (sizes AWG 14 to AWG 6) and -25°C for all other sizes. For three-conductor cables the minimum recommended installation temperature is -10°C (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)
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14 AWG 14 AWG
2 2
Solid Solid
0.064 0.16
60 1.52
1 x 14 1 x 14
30 0.76
0.244 x 0.492 0.62 x 1.25
37 55
88 131
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14 AWG 14 AWG
3 3
Solid Solid
0.064 0.16
60 1.52
1 x 14 1 x 14
30 0.76
0.504 1.28
50 74
117 174
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12 AWG 12 AWG
2 2
Solid Solid
0.080 0.20
60 1.52
1 x 14 1 x 14
30 0.76
0.261 x 0.526 0.66 x 1.34
51 76
109 162
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12 AWG 12 AWG
3 3
Solid Solid
0.080 0.20
60 1.52
1 x 14 1 x 14
30 0.76
0.544 1.38
72 107
148 220
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10 AWG 10 AWG
2 2
Solid Solid
0.101 0.26
60 1.52
1 x 12 1 x 12
30 0.76
0.282 x 0.585 0.72 x 1.49
82 122
146 217
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10 AWG 10 AWG
3 3
Solid Solid
0.101 0.26
60 1.52
1 x 12 1 x 12
30 0.76
0.595 1.51
115 171
200 298
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8 AWG 8 AWG
2 2
7 7
0.143 0.36
75 1.91
1 x 10 1 x 10
45 1.14
0.382 x 0.775 0.97 x 1.97
133 198
253 377
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8 AWG 8 AWG
3 3
7 7
0.143 0.36
75 1.91
1 x 10 1 x 10
45 1.14
0.794 2.02
186 277
344 512
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6 AWG 6 AWG
2 2
7 7
0.179 0.45
90 2.29
1 x 8 1 x 8
45 1.14
0.448 x 0.948 1.14 x 2.41
213 317
375 558
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6 AWG 6 AWG
3 3
7 7
0.179 0.45
90 2.29
1 x 8 1 x 8
45 1.14
0.954 2.42
297 442
513 763
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
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14 AWG 14 AWG
2 2
2.000 5.08
2.631 3.92
3.170 4.72
0.058 0.09
20 20
25 25
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14 AWG 14 AWG
3 3
2.016 5.12
2.631 3.92
3.170 4.72
0.058 0.09
20 20
25 25
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12 AWG 12 AWG
2 2
2.400 6.10
1.662 2.47
2.002 2.98
0.054 0.08
25 25
30 30
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12 AWG 12 AWG
3 3
2.176 5.53
1.662 2.47
2.002 2.98
0.054 0.08
25 25
30 30
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10 AWG 10 AWG
2 2
2.300 5.84
1.040 1.55
1.253 1.86
0.050 0.07
35 35
40 40
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10 AWG 10 AWG
3 3
2.380 6.05
1.040 1.55
1.253 1.86
0.050 0.07
35 35
40 40
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8 AWG 8 AWG
2 2
3.100 7.87
0.653 0.97
0.786 1.17
0.052 0.08
50 50
55 55
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8 AWG 8 AWG
3 3
3.176 8.07
0.653 0.97
0.786 1.17
0.052 0.08
50 50
55 55
More Options
6 AWG 6 AWG
2 2
3.600 9.14
0.411 0.61
0.495 0.74
0.051 0.08
65 65
75 75
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6 AWG 6 AWG
3 3
3.816 9.69
0.411 0.61
0.495 0.74
0.051 0.08
65 65
75 75

* 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
  • 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 heat-resistant thermoplastic polyvinyl chloride (PVC) insulation
  3. Jacket:Polyvinyl Chloride (PVC) jacket. Sunlight, moisture, and fungus-resistant

  • Conductor Colors: 2/C Black, White
  • Conductor Colors: 3/C Black, Red, White

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