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- From: Lawrence London <lfljvenaura@gmail.com>
- To: machinist@lists.ibiblio.org
- Subject: [machinist] Motor Amps Chart
- Date: Sun, 23 Jul 2017 06:06:18 -0400
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 |
Current - Full-Load (Amperes) |
||||
|
Direct-current Motors |
Single-phase Motors |
||||
|
115 |
230 |
550 |
110 |
220 |
|
|
¼ |
|
|
|
4.8 |
2.4 |
|
½ |
4.5 |
2.3 |
|
7 |
3.5 |
|
¾ |
6.5 |
3.3 |
1.4 |
9.4 |
4.7 |
|
1 |
8.4 |
4.2 |
1.7 |
11 |
5.5 |
|
1 ½ |
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 ½ |
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
¼
½
4.3
2.2
1.1
.9
5.0
2.5
1.3
1.0
¾
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 ½
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 ½
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
- [machinist] Motor Amps Chart, Lawrence London, 07/23/2017
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