NMD90 Copper SIMpull® Romex® Brand
300 Volts / -25ºC Min, 90ºC Max. Copper Conductors
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
| 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
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
|
60
1.52
|
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
|
† 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
- Conductor: Solid per ASTM B3 or Combination unilay-stranded copper conductors per ASTM B787.
- Insulation: All phases are insulated with Polyvinyl Chloride with Nylon Sheath
- Jacket: Polyvinyl Chloride PVC jacket utilizing SIMpull Technology.