Fusing Current of Wire in Amperes (approximate)

AWG

Diameter

Diameter

Copper

Aluminum

German Silver

Iron

Tin

(inches)

(mm)

40

0.0031

0.079

1.77

1.31

0.90

0.54

0.28

38

0.0039

0.099

2.49

1.85

1.27

0.77

0.40

36

0.0050

0.127

3.62

2.68

1.85

1.11

0.58

34

0.0063

0.160

5.12

3.79

2.62

1.57

0.82

32

0.0079

0.201

7.19

5.33

3.67

2.21

1.15

30

0.0100

0.254

10.2

7.59

5.23

3.15

1.64

28

0.0126

0.320

14.5

10.7

7.40

4.45

2.32

26

0.0159

0.404

20.5

15.2

10.5

6.31

3.29

24

0.0201

0.511

29.2

21.6

14.9

8.97

4.68

22

0.0253

0.643

41.2

30.5

21.0

12.7

6.61

20

0.0319

0.810

58.4

43.2

29.8

17.9

9.36

19

0.0359

0.912

69.7

51.6

35.6

21.4

11.2

18

0.0403

1.024

82.9

61.4

42.3

25.5

13.3

17

0.0452

1.148

98.4

72.9

50.3

30.3

15.8

16

0.0508

1.290

117

86.8

59.9

36.0

18.8

15

0.0571

1.450

140

103

71.4

43.0

22.4

14

0.0641

1.628

166

123

84.9

51.1

26.6

13

0.0719

1.826

197

146

101

60.7

31.7

12

0.0808

2.052

235

174

120

72.3

37.7

11

0.0907

2.304

280

207

143

86.0

44.9

10

0.1019

2.588

333

247

170

102

53.4

9

0.1144

2.906

396

293

202

122

63.5

8

0.1285

3.264

472

349

241

145

75.6

7

0.1443

3.665

562

416

287

173

90.0

6

0.1620

4.115

668

495

341

205

107