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Voltage vs Amperage for a Given Wattage

Amperage Conversions

Watts Volts Single Phase Volts 3 Phase
Balanced Load
Watts
120 240 480 240 480
100
150
200
250
300
0.83
1.25
1.67
2.08
2.50
0.42
0.63
0.83
1.04
1.25
0.21
0.31
0.42
0.52
0.63
0.24
0.36
0.49
0.61
0.73
0.13
0.18
0.25
0.30
0.37
100
150
200
250
300
350
400
450
500
600
2.92
3.33
3.75
4.17
5.00
1.46
1.67
1.88
2.08
2.50
0.73
0.84
0.93
1.04
1.25
0.85
0.97
1.10
1.20
1.45
0.43
0.49
0.55
0.60
0.73
350
400
450
500
600
700
750
800
900
1000
5.83
6.25
6.67
7.50
8.33
2.92
3.13
3.33
3.75
4.17
1.46
1.56
1.67
1.87
2.10
1.70
1.81
1.93
2.17
2.41
0.85
0.91
0.97
1.09
1.21
700
750
800
900
1000
1100
1200
1250
1300
1400
9.17
10.0
10.4
10.8
11.7
4.58
5.00
5.21
5.42
5.83
2.30
2.51
2.61
2.71
2.91
2.65
2.90
3.10
3.13
3.38
1.33
1.45
1.55
1.57
1.69
1100
1200
1250
1300
1400
1500
1600
1700
1750
1800
12.5
13.3
14.2
14.6
15.0
6.25
6.67
7.08
7.29
7.50
3.12
3.34
3.54
3.65
3.75
3.62
3.86
4.10
4.22
4.34
1.82
1.93
2.05
2.10
2.17
1500
1600
1700
1750
1800
1900
2000
2200
2500
2750
15.8
16.7
18.3
20.8
23.0
7.92
8.33
9.17
10.4
11.5
3.96
4.17
4.59
5.21
5.73
4.58
4.82
5.30
6.10
6.63
2.29
2.41
2.65
3.05
3.32
1900
2000
2200
2500
2750
3000
3500
4000
4500
5000
25.0
29.2
33.3
37.5
41.7
12.5
14.6
16.7
18.8
20.8
6.25
7.30
8.33
9.38
10.42
7.23
8.45
9.64
10.84
12.1
3.62
4.23
4.82
5.42
6.1
3000
3500
4000
4500
5000
6000
7000
8000
9000
10000
50.0
58.3
66.7
75.0
83.3
25.0
29.2
33.3
37.5
41.7
12.50
14.59
16.67
18.75
20.85
14.50
16.9
19.3
21.7
24.1
7.25
8.5
9.65
10.85
12.1
6000
7000
8000
9000
10000