TFN/TFFN Copper
600 Volt. Copper Conductor. PVC Insulation/Nylon Sheath. Heat, Moisture, Oil, and Gasoline Resistant II. Also Rated MTW and AWM.
Application & Features
APPLICATION
Southwire Type TFN/TFFN or MTW or AWM may be used as fixture wire, machine tool wiring, or appliance wiring material as specified in the National Electrical Code® and other applicable codes and standards. Voltage for all applications is 600 volts. Allowable temperatures are as follows:
- TFN/TFFN- Dry locations not to exceed 90°C
- AWM- When rated as appliance wiring material in dry locations, conductor temperatures not to exceed 105°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)
FEATURES
- Gasoline and Oil Resistant II
- 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 |
18 AWG
18 AWG
|
0.0
0.0
|
Solid
Solid
|
0.040
0.10
|
15
0.38
|
5
0.13
|
0.080
0.20
|
4
6
|
6
9
|
| More Options |
18 AWG
18 AWG
|
1.0
1.0
|
16
16
|
0.045
0.11
|
15
0.38
|
5
0.13
|
0.085
0.22
|
4
6
|
7
10
|
| More Options |
16 AWG
16 AWG
|
1.0
1.0
|
Solid
Solid
|
0.050
0.13
|
15
0.38
|
5
0.13
|
0.090
0.23
|
7
10
|
10
15
|
| More Options |
16 AWG
16 AWG
|
1.0
1.0
|
26
26
|
0.059
0.15
|
15
0.38
|
5
0.13
|
0.101
0.26
|
7
10
|
10
15
|
| 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 |
18 AWG
18 AWG
|
0.0
0.0
|
0.3
0.76
|
6.669
9.92
|
8.035
11.96
|
0.036
0.05
|
-
-
|
6
6
|
| More Options |
18 AWG
18 AWG
|
1.0
1.0
|
0.3
0.76
|
7.148
10.64
|
8.613
12.82
|
0.036
0.05
|
-
-
|
6
6
|
| More Options |
16 AWG
16 AWG
|
1.0
1.0
|
0.4
1.02
|
4.181
6.22
|
5.037
7.50
|
0.033
0.05
|
-
-
|
8
8
|
| More Options |
16 AWG
16 AWG
|
1.0
1.0
|
0.4
1.02
|
4.487
6.68
|
5.406
8.05
|
0.033
0.05
|
-
-
|
8
8
|
* Ampacities based on 2023 NEC Table 402.5.
* 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 | Violet |
|
18 (Solid)
18 (Solid)
|
269779 | 269795 | 269803 | 269787 | 269845 | 269837 | 269829 | 269878 |
|
269860 |
|
|
|
16 (Solid)
16 (Solid)
|
269886 | 269902 | 269910 | 269894 | 269951 | 269944 | 269936 | 269985 |
|
269977 |
|
|
|
18 (16)
18 (16)
|
270215 | 270231 | 270249 | 270223 | 270280 | 270272 | 270264 | 270314 | 270298 | 270306 |
297549
297549
|
561595
561595
|
|
16 (26)
16 (26)
|
270322 | 270348 | 270355 | 270330 | 270397 | 270389 | 270371 | 270421 | 270405 | 270413 | 297531 |
|
| Size (Strand) | Black/Orange | Black/Yellow | Black/Gray | Black/Violet | White/Black | White/Red | White/Blue | Blue/White | Green | Black/Red | Black/Blue | Black/White | Black/Brown |
|
18 (Solid)
18 (Solid)
|
|
|
|
|
|
589281
589281
|
558028
558028
|
|
269811 |
|
|
|
|
|
16 (Solid)
16 (Solid)
|
|
|
|
|
|
|
|
567169
567169
|
269928 |
|
|
|
|
|
18 (16)
18 (16)
|
587084
587084
|
587087
587087
|
587082
587082
|
587081
587081
|
587091
587091
|
|
|
|
270256 |
587083
587083
|
587085
587085
|
587090
587090
|
587086
587086
|
|
16 (26)
16 (26)
|
|
|
|
|
|
|
|
|
270363 |
|
|
|
|
Standards & References
- ASTM B3 Soft or Annealed Copper Wire
- ASTM B174 Standard Specification for Bunch-Stranded Copper
- UL 66 Fixture Wire
- UL 758 Standard for Appliance Wiring Material
- UL 1063 Machine Tool Wiring (MTW)
Construction
- Conductor: Solid soft drawn bare copper per ASTM B3 for TFN. Class K bunch-stranded soft drawn bare copper per ASTM B174 for TFFN.
- Insulation: Heat and moisture resistant PVC
- Sheath: Nylon