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Full-Load Currents of Motors

Note: the following table contains approximate full-load currents for motors of various types, speeds, and frequencies. Variations of 10% may be expected.

Hp. of
Motor

Current - Full-Load (Amperes)

Direct-current Motors

Single-phase Motors

115
volt

230
volt

550
volt

110
volt

220
volt

 

 

 

4.8

2.4

4.5

2.3

 

7

3.5

6.5

3.3

1.4

9.4

4.7

1

8.4

4.2

1.7

11

5.5

1

12.5

6.3

2.6

15.2

7.6

2

16.1

8.3

3.4

20

10

3

23

12.3

5.0

28

14

5

40

19.8

8.2

46

23

7

58

28.7

12

68

34

10

75

38

16

86

43

15

112

56

23

 

 

20

140

74

30

 

 

25

185

92

38

 

 

30

220

110

45

 

 

40

294

146

61

 

 

50

364

18

75

 

 

60

436

215

90

 

 

75

540

268

111

 

 

100

 

357

146

 

 

125

 

443

184

 

 

150

 

 

220

 

 

175

 

 

 

 

 

200

 

 

295

 

 

Full-Load Currents of Motors (Continued)

HP of
Motor

Current - Full-Load (Amperes)

Alternating-Current Motors

Squirrel-Cage Induction Motors

Slip-Ring Induction Motors

Two-phase

Three-phase

Two-phase

Three-phase

110
volt

220
volt

440
volt

550
volt

2300
volt

110
volt

220
volt

440
volt

550
volt

2300
volt

110
volt

220
volt

440
volt

550
volt

2300
volt

110
volt

220
volt

440
volt

550
volt

2300
volt

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.3

2.2

1.1

.9

 

5.0

2.5

1.3

1.0

 

 

 

 

 

 

 

 

 

 

 

4.7

2.4

1.2

1.0

 

5.4

2.8

1.4

1.1

 

6.2

3.1

1.6

1.3

 

7.2

3.6

1.8

1.5

 

1

5.7

2.9

1.4

1.2

 

6.6

3.3

1.7

1.3

 

6.7

3.4

1.7

1.4

 

7.8

3.9

2.0

1.6

 

1

7.7

4.0

2

1.6

 

9.4

4.7

2.4

2.0

 

11.7

5.9

3.0

2.3

 

14.4

 

 

 

 

2

10.4

5

3

2.0

 

12.0

6

3.0

2.4

 

12.5

6.3

3.1

2.5

 

20.02

7.2

3.6

2.9

 

3

 

8

4

3.0

 

 

9

4.5

4.0

 

 

8.7

4.3

3.5

 

 

10

5.0

4

 

5

 

13

7

6

 

 

15

7.5

6.0

 

 

13.0

6.5

5.2

 

 

15

7.5

6

 

7

 

19

9

7

 

 

22

11

9.0

 

 

20.0

10.0

7.6

 

 

25

13

10

 

10

 

24

12

10

 

 

27

14

11

 

 

24.3

12.1

10.0

 

 

28

14

11

 

15

 

33

16

13

 

 

38

19

15

 

 

39

19.5

15.6

 

 

45

23

18

 

20

 

45

23

19

 

 

52

26

21

5.7

 

49

24.7

19.8

 

 

56

28

22

 

25

 

55

28

22

 

 

64

32

26

7

 

60

30.0

24.0

6.4

 

67

34

27

7.5

30

 

67

34

27

7

 

77

39

31

8

 

72

36.0

28.8

7.8

 

82

41

33

9

40

 

88

44

35

9

 

101

51

40

10

 

93

46.5

37.3

9.5

 

106

53

42

11

50

 

108

54

43

11

 

125

63

50

13

 

113

57

45

12.1

 

128

64

51

14

60

 

129

65

52

13

 

149

75

60

15

 

135

68

54

14.0

 

150

75

60

16

75

 

156

78

62

16

 

180

90

72

19

 

164

82

65

17.3

 

188

94

75

19

100

 

212

106

85

22

 

246

123

98

25

 

214

108

87

21.7

 

246

123

99

25

125

 

268

134

108

27

 

310

155

124

32

 

267

134

108

27

 

310

155

124

31

150

 

311

155

124

31

 

360

180

144

36

 

315

158

127

32

 

364

182

145

37

175

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200

 

415

208

166

43

 

480

240

195

49

 

430

216

173

44

 

490

245

196

52

 

 

 

 

 


 


 

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