JZD Wire & Cable Factory
More Than 20 Years Experience
More Than 20 Years Experience
Author: Joey Wan 
August 25,2022
Application
THHN/THWN type conductors, installed through conduit in accordance with the National Electrical Code, are suitable for service in commercial/industrial systems, feeder and branch circuit wiring THHN type cables are suitable for use in dry environments where the temperature does not exceed 90°C.
THWN cables are suitable for dry environments with temperatures not exceeding 90°C, humid environments at 75°C or oil/cooling fluids not exceeding 75°C.
THWN-2 category cables are suitable for use in dry or humid environments where the temperature does not exceed 90°C, and in oil/cooling fluids where the temperature does not exceed 75°C. MTW cables are suitable for use in wet environments, in oil/cooling liquid with a temperature not exceeding 60°C, and in a dry environment with a temperature not exceeding 90°C (limited to the current carrying capacity of the 75°C conductor specified in NFPA79). In a dry environment where the conductor temperature does not exceed 105°C, the AWM type cable can be used as an equipment wire with a rated voltage of 600 volts.
Standards and Certifications
UL 83 - Thermoset Insulated Cables
CSA C22.2 No. 75-03
UL 1063 (MTW) - Machine Tool Wire and Cable (Stranded)
UL 758 (AWM)
ICEA S-95-658/NEMA WC 70
Cable parameters
Wire Gauge Number of Strands Nominal Insulation Thickness Nominal Sheath Thickness Nominal Cable Outside Diameter Nominal Cable Weight
| Wire Gauge |
strand |
Nominal insulation thickness |
Nominal Sheath Thickness |
Nominal cable outer diameter |
Nominal cable weight |
||||
|
Inch |
mm |
Inch |
mm |
Inch |
mm |
Lbs/kft |
kg/km |
||
|
14 |
1 |
0.015 |
0.38 |
0.004 |
0.10 |
0.11 |
2.79 |
15 |
22 |
|
12 |
1 |
0.015 |
0.38 |
0.004 |
0.10 |
0.12 |
3.05 |
23 |
34 |
|
10 |
1 |
0.020 |
0.51 |
0.004 |
0.10 |
0.15 |
3.81 |
37 |
54 |
|
14 |
19 |
0.015 |
0.38 |
0.004 |
0.10 |
0.11 |
2.79 |
16 |
24 |
|
12 |
19 |
0.015 |
0.38 |
0.004 |
0.10 |
0.13 |
3.30 |
24 |
36 |
|
10 |
19 |
0.020 |
0.51 |
0.004 |
0.10 |
0.17 |
4.32 |
39 |
58 |
|
8 |
19 |
0.030 |
0.76 |
0.005 |
0.13 |
0.22 |
5.59 |
63 |
94 |
|
6 |
19 |
0.030 |
0.76 |
0.005 |
0.13 |
0.26 |
6.60 |
98 |
145 |
|
4 |
19 |
0.040 |
1.01 |
0.006 |
0.15 |
0.33 |
8.38 |
157 |
234 |
|
3 |
19 |
0.040 |
1.01 |
0.006 |
0.15 |
0.36 |
9.14 |
193 |
287 |
|
2 |
19 |
0.040 |
1.01 |
0.006 |
0.15 |
0.39 |
9.91 |
240 |
357 |
|
1 |
19 |
0.050 |
1.27 |
0.007 |
0.18 |
0.43 |
10.92 |
300 |
446 |
|
1/0 |
19 |
0.050 |
1.27 |
0.007 |
0.18 |
0.47 |
11.94 |
376 |
560 |
|
2/0 |
19 |
0.050 |
1.27 |
0.007 |
0.18 |
0.52 |
13.21 |
467 |
695 |
|
3/0 |
19 |
0.050 |
1.27 |
0.007 |
0.18 |
0.57 |
14.48 |
581 |
864 |
|
4/0 |
19 |
0.050 |
1.27 |
0.007 |
0.18 |
0.64 |
16.26 |
724 |
1077 |
|
250 |
37 |
0.060 |
1.52 |
0.008 |
0.20 |
0.69 |
17.53 |
855 |
1272 |
|
300 |
37 |
0.060 |
1.52 |
0.008 |
0.20 |
0.76 |
19.30 |
1022 |
1521 |
|
350 |
37 |
0.060 |
1.52 |
0.008 |
0.20 |
0.79 |
20.07 |
1191 |
1772 |
|
400 |
37 |
0.060 |
1.52 |
0.008 |
0.20 |
0.85 |
21.59 |
1345 |
2001 |
|
500 |
37 |
0.060 |
1.52 |
0.008 |
0.20 |
0.94 |
23.88 |
1668 |
2482 |
|
600 |
61 |
0.070 |
1.78 |
0.009 |
0.23 |
1.10 |
27.94 |
1994 |
2967 |
|
750 |
61 |
0.070 |
1.78 |
0.009 |
0.23 |
1.16 |
29.46 |
2465 |
3668 |
