Full Load Currents

Rated Line Amps for KVA and Voltages of

Single Phase Transformers (see below for 3 phase transformers)

KVA 120V 240V 480V 600V 2400V 4160V
  Amps Amps Amps Amps Amps Amps
1.0 8.3 4.2 2.1 1.7 - -
1.5 12.5 6.3 3.1 2.5 - -
2.0 16.7 8.3 4.2 3.3 - -
3.0 25.0 12.5 6.3 5.0 1.25 0.73
5.0 41.7 20.8 10.4 8.3 2.08 1.2
7.5 62.5 31.3 15.6 12.5 3.13 1.8
10 83.3 41.7 20.8 16.7 4.17 2.4
15 125 62.5 31.3 25.0 6.25 3.6
20 167 83.3 41.7 33.3 8.33 4.8
25 208 104 52.1 41.7 10.4 6.0
30 250 125 62.5 50.0 12.5 7.2
37.5 313 156 78.0 62.5 15.6 9.0
50 417 208 104 83.3 20.8 12
75 625 313 156 125 31.3 18
100 833 417 208 167 41.7 24
167 1391 695 347 278.3 69.6 40.1
250 2083 1041 520.8 416 104 60.1
333 2115 1387 693.7 565 138 80

Three Phase Transformers

KVA 208V 240V 480V 600V 2400V 4160V
  Amps Amps Amps Amps Amps Amps
3 8.3 7.2 3.6 2.9 0.72 0.42
6 16.6 14.4 7.2 5.8 1.46 0.83
9 25.0 21.7 10.8 8.7 2.17 1.25
15 41.7 36.1 18.1 14.5 3.61 2.09
20 56.6 48.2 24.1 19.3 4.82 2.78
25 69.5 60.2 30.1 24.1 6.02 3.48
30 83.4 72.3 36.1 28.9 7.23 4.17
37.5 104 90.3 45.2 36.1 9.03 5.22
45 125 108 54.2 43.4 10.8 6.26
50 139 120 60.2 48.2 12.0 6.96
60 167 145 72.3 57.8 14.5 8.35
75 208 181 90.3 72.3 18.1 10.4
100 278 241 120 96.3 24.1 13.9
112 313 271 135 108 27.1 15.7
150 417 361 181 145 36.1 20.9
200 566 482 241 193 48.2 27.8
225 625 542 271 217 54.2 31.3
300 834 723 361 289 72.3 41.7
400 1112 963 482 385 96.3 56.7
500 1390 1204 602 482 120 69.6

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