Part No.

Conductor

Insulation

Jacket

Max

Dia-

meter

(mm)

Ref.W

(kg/km)

Type

Size

(AWG)

Construction

(No./mm)

Dia-

Meter

(mm)

Nominal

Thickness

(mm)

Nominal

Diameter

(mm)

Minimum Thickness

At any point

(mm)

Nominal

Diameter

(mm)

THHN-14B

Stranded

Conductor

14

7/0.62

1.86

0.38

2.66

0.10

2.90

3.3

25

THHN-14B1

14

19/0.38

1.90

0.38

2.70

0.10

2.94

3.4

25

THHN-12B

12

7/0.78

2.34

0.38

3.14

0.10

3.38

3.8

38

THHN-12B1

12

19/0.47

2.35

0.38

3.15

0.10

3.39

3.8

38

THHN-10B

10

7/0.98

2.94

0.51

4.00

0.10

4.24

4.8

59

THHN-10B1

10

19/0.60

3.00

0.51

4.06

0.10

4.30

4.8

59

THHN-8B

8

7/1.23

3.69

0.76

5.25

0.13

5.55

6.2

97

THHN-8B1

8

19/0.75

3.75

0.76

5.31

0.13

5.61

6.3

96

THHN-6B

6

7/1.56

4.68

0.76

6.24

0.13

6.54

7.3

147

THHN-6B1

6

19/0.95

4.77

0.76

6.33

0.13

6.63

7.4

146

THHN-4B

4

7/1.96

5.88

0.76

7.44

0.13

7.74

8.7

135

THHN-4B1

4

19/1.19

5.95

0.76

7.51

0.13

7.81

8.7

135

THHN-3B

3

7/2.20

6.60

1.02

8.68

0.15

9.02

10.0

292

THHN-3B1

3

19/1.33

6.65

1.02

8.73

0.15

9.07

10.0

291

THHN-2B

2

7/2.47

7.41

1.02

9.49

0.15

9.83

11.0

361

THHN-2B1

2

19/1.50

7.50

1.02

9.58

0.15

9.92

11.0

361

THHN-1B

1

19/1.68

8.40

1.02

10.48

0.18

10.88

12.1

457

THHN-1/0B

1/0

19/1.89

9.45

1.27

12.03

0.18

12.43

13.8

585

THHN-2/0B

2/0

19/2.12

10.60

1.27

13.18

0.18

13.58

15.1

724

THHN-3/0B

3/0

19/2.38

11.90

1.27

14.48

0.18

14.88

16.5

900

THHN-4/0B

4/0

19/2.67

13.35

1.27

15.93

0.18

16.33

18.1

1118

THHN-14A

Solid

Conductor

14

1/1.63

1.63

0.38

2.43

0.10

2.67

3.1

22

THHN-12A

12

1/2.05

2.05

0.38

2.85

0.10

3.09

3.5

36

THHN-10A

10

1/2.59

2.59

0.51

3.65

0.10

3.89

4.4

57

THHN-8A

8

1/3.26

3.26

0.76

4.82

0.13

5.12

5.7

94