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 Unscreened THHN/THWN-2 Cable with Ground Wire
Applications
These cables are use in class 1, Division 2 Hazardous locations, may be installed in trays, wire ways,
ducts, conduit and aerially when properly supported by a messenger. They are approved for direct
burial, wet or dry locations and outdoors in cable trays where a sunlight resistant rating is required.
Standards
ICEA S-73-532; ICEA S-95-658; UL 1277; UL 83
Construction
Conductor: Bare, annealed copper conforming to ASTM B3 and B8
Ground wires: Sized as required by UL 1277. Sizes 14 AWG to 6 AWG have an insulated green ground
wire. Sizes 4 AWG and larger have a bare ground wire.
Insulation: Flame-retardant PVC/Nylon type THHN/THWN-2 per UL 83
Color coded per Method #1-E2 per ICEA S-73-532
Binder tape
Ripcord: Nylon
Jacket: Special PVC, flame retardant, UL listed sunlight and moisture resistant, meeting the
requirements of UL 1277. Color: Black
Chemical resistance: Aliphatic and aromatic hydrocarbon resistance
3 Cores, 600V, Rated 90°C
Conductor Size |
Grond Wire Size |
Insulation Thickness |
Jacket Thickness |
Nom. O.D. |
Approx. Weight |
Ampacity |
(AWG/kcmil) |
(AWG) |
PVC(mm) |
Nylon(mm) |
(mm) |
(mm) |
(kg/km) |
(amps) |
14 |
14 |
0.38 |
0.10 |
1.14 |
9.25 |
135 |
25 |
12 |
12 |
0.38 |
0.10 |
1.14 |
10.36 |
188 |
30 |
10 |
10 |
0.51 |
0.10 |
1.14 |
11.66 |
284 |
40 |
8 |
10 |
0.76 |
0.13 |
1.52 |
15.49 |
449 |
55 |
6 |
8 |
0.76 |
0.13 |
1.52 |
18.42 |
628 |
75 |
4 |
8 |
1.02 |
0.15 |
2.03 |
21.77 |
963 |
95 |
2 |
6 |
1.02 |
0.15 |
2.03 |
25.30 |
1433 |
130 |
1 |
6 |
1.27 |
0.18 |
2.03 |
28.14 |
1720 |
150 |
1/0 |
6 |
1.27 |
0.18 |
2.03 |
30.66 |
2159 |
170 |
2/0 |
6 |
1.27 |
0.18 |
2.03 |
32.94 |
2586 |
195 |
3/0 |
4 |
1.27 |
0.18 |
2.03 |
35.81 |
3158 |
225 |
4/0 |
4 |
1.27 |
0.18 |
2.03 |
38.86 |
3834 |
260 |
250 |
4 |
1.52 |
0.20 |
2.79 |
42.09 |
4508 |
290 |
350 |
3 |
1.52 |
0.20 |
2.79 |
49.81 |
6469 |
350 |
500 |
2 |
1.52 |
0.20 |
2.79 |
56.74 |
8660 |
430 |
4 Cores, 600V, Rated 90°C
Conductor Size |
Grond Wire Size |
Insulation Thickness |
Jacket Thickness |
Nom. O.D. |
Approx. Weight |
Ampacity |
(AWG/kcmil) |
(AWG) |
PVC(mm) |
Nylon(mm) |
(mm) |
(mm) |
(kg/km) |
(amps) |
(amps)* |
8 |
10 |
0.76 |
0.13 |
1.52 |
17.22 |
561 |
44 |
55 |
6 |
8 |
0.76 |
0.13 |
1.52 |
19.81 |
813 |
60 |
75 |
4 |
8 |
1.02 |
0.15 |
2.03 |
23.93 |
1222 |
76 |
95 |
2 |
6 |
1.02 |
0.15 |
2.03 |
27.56 |
1823 |
104 |
130 |
1 |
6 |
1.27 |
0.18 |
2.03 |
31.67 |
2261 |
120 |
150 |
1/0 |
6 |
1.27 |
0.18 |
2.03 |
33.38 |
2695 |
136 |
170 |
2/0 |
6 |
1.27 |
0.18 |
2.03 |
36.88 |
3405 |
156 |
195 |
3/0 |
4 |
1.27 |
0.18 |
2.03 |
40.00 |
4101 |
180 |
225 |
4/0 |
4 |
1.27 |
0.18 |
2.79 |
44.91 |
5115 |
208 |
260 |
250 |
4 |
1.52 |
0.20 |
2.79 |
49.20 |
6021 |
232 |
290 |
350 |
3 |
1.52 |
0.20 |
2.79 |
55.37 |
8155 |
280 |
350 |
500 |
2 |
1.52 |
0.20 |
2.79 |
63.35 |
11271 |
344 |
430 |
*Where the 4th conductor is the neutral of a balanced 3 phase system.
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