THHN/THWN Copper Silicone-Free
600 Volts. Copper Conductor. PVC Insulation/Nylon Sheath THHN/THWN. Heat, Moisture, Gasoline and Oil Resistant II. Silicone-Free.
Application & Features
APPLICATION
Southwire THHN copper conductors are primarily used in conduit for branch circuits in commercial or industrial applications as specified in the National Electrical Code® and other applicable codes and standards. Voltage for all applications is 600 volts. These conductors have multiple ratings depending upon the product application. Allowable temperatures are as follows:
- THHN or T90 Nylon- Dry locations not to exceed 90°C
- THWN- Wet locations not to exceed 75°C or dry locations not to exceed 90°C or locations not to exceed 75°C when exposed to oil
- TWN75- Wet locations not to exceed 75°C
- MTW- Wet locations or when exposed to oil at temperatures not to exceed 60°C or dry locations not to exceed 90°C (with ampacity limited to that for 75°C conductor temperature per NFPA 79)
- AWM- Dry locations not to exceed 105°C only when rated and used as appliance wiring material
FEATURES
- Gasoline and Oil Resistant II
- VW-1 Sizes 14 through 10 AWG
- FT1 All Sizes
- AWM- Sizes 14 through 10 AWG
- MTW- Stranded Constructions Only
- RoHS Compliant
Specifications
| Cond. Size | Conductor Number | Cond. Strands | Diameter Over Conductor (in) (cm) | Inner Layer Thickness (mils) (mm) | 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
|
0.0
0.0
|
Solid
Solid
|
0.064
0.16
|
16
0.41
|
5
0.13
|
0.106
0.27
|
12
18
|
16
24
|
| More Options |
14 AWG
14 AWG
|
1
1
|
19
19
|
0.073
0.19
|
16
0.41
|
5
0.13
|
0.113
0.29
|
12
18
|
18
27
|
| More Options |
12 AWG
12 AWG
|
1
1
|
Solid
Solid
|
0.080
0.20
|
16
0.41
|
5
0.13
|
0.123
0.31
|
19
28
|
23
34
|
| More Options |
12 AWG
12 AWG
|
1
1
|
19
19
|
0.090
0.23
|
16
0.41
|
5
0.13
|
0.132
0.34
|
20
30
|
25
37
|
| More Options |
10 AWG
10 AWG
|
1
1
|
Solid
Solid
|
0.101
0.26
|
21
0.53
|
5
0.13
|
0.152
0.39
|
30
45
|
37
55
|
| More Options |
10 AWG
10 AWG
|
1
1
|
19
19
|
0.117
0.30
|
21
0.53
|
5
0.13
|
0.165
0.42
|
32
48
|
39
58
|
| Cond. Size | Conductor Number | Min. Bend Radius (in) (cm) | Max Pull Tension (lbs) (kg) | 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
|
0.0
0.0
|
0.4
1.02
|
32
14.51
|
2.631
3.92
|
3.170
4.72
|
0.058
0.09
|
20
20
|
25
25
|
| More Options |
14 AWG
14 AWG
|
1
1
|
0.5
1.27
|
32
14.51
|
2.631
3.92
|
3.170
4.72
|
0.058
0.09
|
20
20
|
25
25
|
| More Options |
12 AWG
12 AWG
|
1
1
|
0.5
1.27
|
52
23.59
|
1.662
2.47
|
2.002
2.98
|
0.054
0.08
|
25
25
|
30
30
|
| More Options |
12 AWG
12 AWG
|
1
1
|
0.5
1.27
|
52
23.59
|
1.662
2.47
|
2.002
2.98
|
0.054
0.08
|
25
25
|
30
30
|
| More Options |
10 AWG
10 AWG
|
1
1
|
0.6
1.52
|
83
37.65
|
1.040
1.55
|
1.253
1.86
|
0.050
0.07
|
35
35
|
40
40
|
| More Options |
10 AWG
10 AWG
|
1
1
|
0.7
1.78
|
83
37.65
|
1.040
1.55
|
1.253
1.86
|
0.050
0.07
|
35
35
|
40
40
|
* 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.
* Inductive impedance is based on non-ferrous conduit with one diameter spacing center-to-center.
| Size (Strand) | Black | Red | Blue | White | Brown | Orange | Yellow | Gray | Pink | Purple | Tan | Green |
|
14 (Solid)
14 (Solid)
|
115790 | 115816 | 115824 | 115808 | 115865 | 115857 | 115840 | 214668 | 255331 | 211243 | 320150 | 115832 |
|
12 (Solid)
12 (Solid)
|
115873 | 115899 | 115907 | 115881 | 115949 | 115931 | 115923 | 228700 | 256479 | 212043 |
|
115915 |
|
10 (Solid)
10 (Solid)
|
115956 | 115972 | 115980 | 115964 | 116020 | 116012 | 116004 | 229823 | 258384 | 253336 |
|
115998 |
|
14 (19)
14 (19)
|
229559 | 229575 | 229583 | 229567 | 229625 | 229617 | 229609 | 229633 | 244863 | 239566 |
|
229591 |
|
12 (19)
12 (19)
|
229641 | 229666 | 229674 | 229658 | 229716 | 229708 | 229690 | 229724 | 242503 | 232124 | 320168 | 229682 |
|
10 (19)
10 (19)
|
229732
229732
|
229757 | 229765 | 229740 | 229807 | 229799 | 229781 | 229815 | 260539 | 256594 | 320176 | 229773 |
| Size (Strand) | White/Red | White/Black | Blue/White | Green/Yellow | Gray/Orange | Gray/Yellow | Gray/Purple | Green/Yellow | Green/Orange | Red/Black | Gray/Brown | White/Blue |
|
14 (Solid)
14 (Solid)
|
|
|
|
|
|
|
|
566576 |
|
662817
662817
|
|
|
|
12 (Solid)
12 (Solid)
|
566440 | 311514 |
662981
662981
|
575305 | 575304 |
|
|
|
575309 |
|
575307 | 566441 |
|
14 (19)
14 (19)
|
565285 | 611410 |
|
401000 |
|
|
|
|
|
|
575303 | 565284 |
|
12 (19)
12 (19)
|
551546 | 551545 |
|
611757 | 575301 | 575302 |
|
575310 |
|
|
575300 |
|
|
10 (19)
10 (19)
|
556198 | 610028 |
|
663112 | 575298 | 575299 | 674034 |
|
|
|
575297 | 556199 |
Standards & References
- ASTM B3 Soft or Annealed Copper Wire
- ASTM B787 19 Wire Combination Unilay-Stranded Copper Conductors
- UL 83 Thermoplastic Insulated Wires and Cables
- UL 758 Standard for Appliance Wiring Material
- UL 1063 Machine Tool Wiring (MTW)
- CSA C22.2 No. 75 Thermoplastic Insulated Wires and Cables
- ICEA S-95-658 (NEMA WC70) Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy
- Federal Specification A-A-59544
- NMX-J-010-ANCE Thermoplastic insulated wires and cables
- NOM-063-SCFI Electrical Products – Conductors – Safety Requirements
Construction
- Conductor: Solid sizes #14 AWG - #10 AWG use soft drawn bare copper per ASTM B3. Stranded sizes #14 AWG - #10 AWG use a combination-unilay stranded soft drawn bare copper per ASTM B787.
- Insulation: Heat and moisture resistant PVC
- Sheath: Nylon