SPEC: 22051

NMD90 Aluminum SIMpull® Romex® Brand

300 Volts / -25ºC Min, 90ºC Max. Aluminum 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 Code1 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) Inner Layer Thickness (mils) (mm) Ground Size Outer Layer Thickness (mils) (mm) Approx. OD (in) (cm) Aluminum Weight (lbs/1000') (kgs/km) Approx. Weight (lbs/1000') (kgs/km)
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6 AWG 6 AWG
3 3
7 7
0.169 0.43
50 1.27
1 x 8 1 x 8
45 1.14
0.753 1.91
90 134
219 326
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4 AWG 4 AWG
3 3
7 7
0.212 0.54
50 1.27
1 x 6 1 x 6
80 2.03
0.934 2.37
144 214
358 533
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2 AWG 2 AWG
3 3
6 6
0.268 0.68
50 1.27
1 x 6 1 x 6
80 2.03
1.067 2.71
214 318
468 696

* Strand count meets minimum number per ASTM

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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6 AWG 6 AWG
3 3
3.000 7.62
0.674 1.00
0.812 1.21
0.051 0.08
50 50
55 55
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4 AWG 4 AWG
3 3
3.700 9.40
0.424 0.63
0.510 0.76
0.048 0.07
65 65
75 75
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2 AWG 2 AWG
3 3
5.300 13.46
0.267 0.40
0.321 0.48
0.045 0.07
90 90
100 100

† 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.
† Ampacities have been adjusted for more than Three Current-Carrying Conductors.
* 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
  • ASTM B787 19 Wire Combination Unilay-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
  • IEEE 1202/FT4 Flame Test (70,000 BTU/hr) 350kcmil and Larger

Construction

  1. Conductor: Solid per ASTM B3 or Combination unilay-stranded copper conductors per ASTM B787.
  2. Insulation: All phases are insulated with Polyvinyl Chloride with Nylon Sheath Colors: Black, Red, White
  3. Jacket: Polyvinyl Chloride PVC jacket utilizing SIMpull® Technology.

Resources

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