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GENERATOR AMP RATINGS - THREE PHASE EXTENDED

3 PHASE AMPERES - 80% POWER FACTOR* (Extended Table)

kW Times 1000 divided by (Volts*1.73) *.80

This chart approximates the amperage of a generator based on the size of the generator and the load on the generator at 100 percent of capacity. Please note that this table is intended to be used as an estimator is not an exact representation due to various factors that can increase or decrease amperage. Elevation, temperature, fuel quality, age, wire size and length and other factors can decrease the amount of power a specific installation can generate.

kVA kW 120 208 220 240 277 380 400 416 440 450 480 600 2400 3300 4160 11000 13800
5 4 24.1 13.9 13.1 12.0 10.4 7.6 7.2 6.9 6.6 6.4 6.0 - - - - - -
6 5 30.1 17.4 16.4 15.1 13.0 9.5 9.0 8.7 8.2 8.0 7.5 - - - - - -
9 7 42.1 24.3 23.0 21.1 18.3 13.3 12.6 12.2 11.5 11.2 10.5 - - - - - -
11 9 54.2 31.3 29.6 27.1 23.5 17.1 16.3 15.6 14.8 14.5 13.5 - - - - - -
13 10 60.2 34.7 32.8 30.1 26.1 19.0 18.1 17.4 16.4 16.1 15.1 - - - - - -
15 12 72.3 41.7 39.4 36.1 31.3 22.8 21.7 20.8 19.7 19.3 18.1 - - - - - -
19 15 90.3 52.1 49.3 45.2 39.1 28.5 27.1 26.1 24.6 24.1 22.6 - - - - - -
20 16 96.3 55.6 52.5 48.2 41.7 30.4 28.9 27.8 26.3 25.7 24.1 - - - - - -
25 20 120.4 69.5 65.7 60.2 52.2 38.0 36.1 34.7 32.8 32.1 30.1 - - - - - -
31 25 150.5 86.8 82.1 75.3 65.2 47.5 45.2 43.4 41.1 40.1 37.6 - - - - - -
38 30 180.6 104.2 98.5 90.3 78.3 57.0 54.2 52.1 49.3 48.2 45.2 - - - - - -
44 35 210.7 121.6 115.0 105.4 91.3 66.6 63.2 60.8 57.5 56.2 52.7 - - - - - -
50 40 240.8 139.0 131.4 120.4 104.3 76.1 72.3 69.5 65.7 64.2 60.2 48.2 12.0 8.8 6.9 - -
56 45 271.0 156.3 147.8 135.5 117.4 85.6 81.3 78.2 73.9 72.3 67.7 54.2 13.5 9.9 7.8 - -
63 50 301.1 173.7 164.2 150.5 130.4 95.1 90.3 86.8 82.1 80.3 75.3 60.2 15.1 10.9 8.7 - -
69 55 331.2 191.1 180.6 165.6 143.5 104.6 99.3 95.5 90.3 88.3 82.8 66.2 16.6 12.0 9.6 - -
75 60 361.3 208.4 197.1 180.6 156.5 114.1 108.4 104.2 98.5 96.3 90.3 72.3 18.1 13.1 10.4 - -
80 65 391.4 225.8 213.5 195.7 169.5 123.6 117.4 112.9 106.7 104.4 97.8 78.3 19.6 14.2 11.3 - -
88 70 421.5 243.2 229.9 210.7 182.6 133.1 126.4 121.6 115.0 112.4 105.4 84.3 21.1 15.3 12.2 - -
94 75 451.6 260.5 246.3 225.8 195.6 142.6 135.6 130.3 123.2 120.4 112.9 90.3 22.6 16.4 13.0 - -
100 80 481.7 277.9 262.7 240.8 208.7 152.1 144.5 139.0 131.4 128.5 120.4 96.3 24.1 17.5 13.9 5.3 4.2
106 85 511.8 295.3 279.2 255.9 221.7 161.6 153.5 147.6 139.6 136.5 128.0 102.4 25.6 18.6 14.8 5.6 4.5
113 90 541.9 312.6 295.6 271.0 234.8 171.1 162.6 156.3 147.8 144.5 135.5 108.4 27.1 19.7 15.6 5.9 4.7
125 100 602.1 347.4 328.4 301.1 260.8 190.1 180.6 173.7 164.2 160.6 150.5 120.4 30.1 21.9 17.4 6.6 5.2
138 110 662.3 382.1 361.3 331.2 286.9 209.2 198.7 191.1 180.6 176.6 165.6 132.5 33.1 24.1 19.1 7.2 5.8
144 115 692.4 399.5 377.7 346.2 300.0 218.7 207.7 199.7 188.8 184.6 173.1 138.5 34.6 25.2 20.0 7.6 6.0
150 120 722.5 416.9 394.1 361.3 313.0 228.2 216.8 208.4 197.1 192.7 180.6 144.5 36.1 26.3 20.8 7.9 6.3
156 125 752.6 434.2 410.5 376.3 326.1 237.7 225.8 217.1 205.3 200.7 188.2 150.5 37.6 27.4 21.7 8.2 6.5
163 130 782.8 451.6 427.0 391.4 339.1 247.2 234.8 225.8 213.5 208.7 195.7 156.6 39.1 28.5 22.6 8.5 6.8
175 140 843.0 486.3 459.8 421.5 365.2 266.2 252.9 243.2 229.9 224.8 210.7 168.6 42.1 30.7 24.3 9.2 7.3
188 150 903.2 521.1 492.6 451.6 391.3 285.2 271.0 260.5 246.3 240.8 225.8 180.6 45.2 32.8 26.1 9.9 7.9
194 155 933.3 538.4 509.1 466.6 404.3 294.7 280.0 269.2 254.5 248.8 233.3 186.7 46.7 33.9 26.9 10.2 8.1
kVA kW 120 208 220 240 277 380 400 416 440 450 480 600 2400 3300 4160 11000 13800
206 165 993.5 573.2 541.9 496.7 430.4 313.7 298.0 286.6 271.0 264.9 248.4 198.7 49.7 36.1 28.7 10.8 8.6
213 170 1023.6 590.5 558.3 511.8 443.4 323.2 307.1 295.3 279.2 273 255.9 204.7 51.2 37.2 29.5 11.2 8.9
219 175 1053.7 607.9 574.8 526.9 456.5 332.8 316.1 304.0 287.4 281 263.4 210.7 52.7 38.3 30.4 11.5 9.2
225 180 1083.8 625.3 591.2 541.9 469.5 342.3 325.1 312.6 295.6 289 271.0 216.8 54.2 39.4 31.3 11.8 9.4
238 190 1144.0 660.0 624.0 572.0 495.6 361.3 343.2 330.0 312.0 305.1 286.0 228.8 57.2 41.6 33.0 12.5 9.9
250 200 1204.2 694.8 656.9 602.1 521.7 380.3 361.3 347.4 328.4 321.1 301.1 240.8 60.2 43.8 34.7 13.1 10.5
275 220 1324.7 764.2 722.5 662.3 573.9 418.3 397.4 382.1 361.3 353.2 331.2 264.9 66.2 48.2 38.2 14.5 11.5
288 230 1384.9 799.0 755.4 692.4 599.9 437.3 415.5 399.5 377.7 369.3 346.2 277.0 69.2 50.4 39.9 15.1 12.0
300 240 1445.1 833.7 788.2 722.5 626.0 456.3 433.5 416.9 394.1 385.4 361.3 289.0 72.3 52.5 41.7 15.8 12.6
313 250 1505.3 868.4 821.1 752.6 652.1 475.4 451.6 434.2 410.5 401.4 376.3 301.1 75.3 54.7 43.4 16.4 13.1
325 260 1565.5 903.2 853.9 782.8 678.2 494.4 469.7 451.6 427.0 417.5 391.4 331.2 78.3 56.9 45.2 17.1 13.6
344 275 1655.8 955.3 903.2 827.9 717.3 522.9 496.7 477.6 451.6 441.6 414.0 313.1 82.8 60.2 47.8 18.1 14.4
363 290 1746.1 1007.4 952.4 873.1 756.5 551.4 523.8 503.7 476.2 465.6 436.5 349.2 87.3 63.5 50.4 19.0 15.2
375 300 1806.4 1042.1 985.3 903.2 782.5 570.4 541.9 521.1 492.6 481.7 451.6 361.3 90.3 65.7 52.1 19.7 15.7
438 350 2107.4 1215.8 1149.5 1053.7 913.0 665.5 632.2 607.9 574.8 562.0 526.9 421.5 105.4 76.6 60.8 23.0 18.3
500 400 2408.5 1389.5 1313.7 1204.2 1043.4 760.6 722.5 694.8 656.9 642.3 602.1 481.7 120.4 87.6 69.5 26.3 20.9
563 450 2709.5 1563.2 1477.9 1354.8 1173.8 855.6 812.9 781.6 739.0 722.5 677.4 541.9 135.5 98.5 78.2 29.6 23.6
625 500 3010.6 1736.9 1642.1 1505.3 1304.2 950.7 903.2 868.4 821.1 802.8 752.6 602.1 150.5 109.5 86.8 32.8 26.2
688 550 3311.7 1910.6 1806.4 1655.8 1434.7 1045.8 993.5 955.3 903.2 883.1 827.9 662.3 165.6 120.4 95.5 36.1 28.8
750 600 3612.7 2084.3 1970.6 1806.4 1565.1 1140.9 1083.8 1042.1 985.3 963.4 903.2 722.5 180.6 131.4 104.2 39.4 31.4
813 650 3913.8 2257.9 2134.8 1956.9 1695.5 1235.9 1174.1 1129.0 1067.4 1043.7 978.4 782.8 195.7 142.3 112.9 42.7 34.0
875 700 4214.8 2431.6 2299.0 2107.4 1825.9 1331.0 1264.5 1215.8 1149.5 1124.0 1053.7 843.0 210.7 153.3 121.6 46.0 36.7
938 750 4515.9 2605.3 2463.2 2257.9 1956.3 1426.1 1354.8 1302.7 1231.6 1204.2 1129.0 903.2 225.8 164.2 130.3 49.3 39.3
1000 800 4817.0 2779.0 2627.4 2408.5 2086.8 1521.9 1445.1 1389.5 1313.7 1284.5 1204.2 963.4 240.8 175.2 139.0 52.5 41.9
1125 900 5419.1 3126.4 2955.9 2709.5 2347.6 1711.3 1625.7 1563.2 1477.9 1445.1 1354.8 1083.8 271.0 197.1 156.3 59.1 47.1
1250 1000 6021.2 3473.8 3284.3 3010.6 2608.5 1901.4 1806.4 1736.9 1642.1 1605.7 1505.3 1204.2 301.1 219.0 173.7 65.7 52.4
1563 1250 7526.5 4342.2 4105.4 3763.2 3260.6 2376.8 2257.9 2171.1 2052.7 2007.1 1881.6 1505.3 376.3 273.7 217.1 82.1 65.4
1875 1500 9031.8 5210.6 4926.4 4515.9 3912.7 2852.1 2709.5 2605.3 2463.2 2408.5 2257.9 1806.4 451.6 328.4 260.5 98.5 78.5
2188 1750 - - 5747.5 5268.5 4564.8 3327.5 3161.1 3039.5 2873.8 2809.9 2634.3 2107.4 526.9 383.2 304.0 115.0 91.6
2500 2000 - - 6568.6 6021.2 5216.9 3802.9 3612.7 3473.8 3284.3 3211.3 3010.6 2408.5 602.1 437.9 347.4 131.4 104.7
2812 2250 - - 7389.6 6773.8 5869.0 4278.2 4064.3 3908.0 3694.8 3612.7 3386.9 2709.5 677.4 492.6 390.8 147.8 117.8
3130 2500 - - 8210.7 7526.5 6521.1 4753.6 4515.9 4342.2 4105.4 4014.1 3763.2 3010.6 752.6 547.4 434.2 164.2 130.9
3750 3000 - - 9852.9 9031.8 7825.4 5704.3 5419.1 5210.6 4926.4 4817.0 4515.9 3612.7 903.2 656.9 521.1 197.1 157.1
4375 3500 - - 11495.0 10537.1 9129.6 6655.0 6322.3 6079.1 5747.5 5619.8 5268.5 4214.8 1053.7 766.3 607.9 229.9 183.3
5000 4000 - - 13137.2 12042.4 10433.8 7605.7 7225.4 6947.5 6568.6 6422.6 6021.2 4817.0 1204.2 875.8 694.8 262.7 209.4
kVA kW 120 208 220 240 277 380 400 416 440 450 480 600 2400 3300 4160 11000 13800

3 PHASE AMPERES - 80% POWER FACTOR* (Extended Table)

kW Times 1000 divided by (Volts*1.73) *.80

*All values shown are approximate.

Copyright © 1996-2019 GeneratorJoe Inc. & GeneratorJoe®. All Rights Reserved.

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GENERATOR AMP RATINGS - SINGLE PHASE EXTENDED

PHASE AMPERES - 100% POWER FACTOR* (Extended Table)

(kW Times 1000) divided by Volts

kVA kW 120 240
1 1 8.3 4.2
3 2 16.7 8.3
4 3 25.0 12.5
5 4 33.3 16.7
6 5 41.7 20.8
8 6 50.0 25.0
9 7 58.3 29.2
10 8 66.7 33.3
11 9 75.0 37.5
13 10 83.3 41.7
14 11 91.7 45.8
15 12 100.0 50.0
16 13 108.3 54.2
18 14 116.7 58.3
19 15 125.0 62.5
20 16 133.3 66.7
21 17 141.7 70.8
23 18 150.0 75.0
24 19 158.3 79.2
25 20 166.7 83.3
26 21 175.0 87.5
28 22 183.3 91.7
29 23 191.7 95.8
30 24 200.0 100.0
31 25 208.3 104.2
33 26 216.7 108.3
34 27 225.0 112.5
35 28 233.3 116.7
36 29 241.7 120.8
38 30 250.0 125.0
39 31 258.3 129.2
40 32 266.7 133.3
41 33 275.0 137.5
43 34 283.3 141.7
44 35 291.7 145.8
45 36 300.0 150.0
46 37 308.3 154.2
48 38 316.7 158.3
49 39 325.0 162.5
50 40 333.3 166.7
51 41 341.7 170.8
53 42 350.0 175.0
54 43 358.3 179.2
55 44 366.7 183.3
56 45 375.0 187.5
58 46 383.3 191.7
59 47 391.7 195.8
60 48 400.0 200.0
61 49 408.3 204.2
63 50 416.7 208.3
64 51 425.0 212.5
65 52 433.3 216.7
66 53 441.7 220.8
68 54 450.0 225.0
69 55 458.3 229.2
70 56 466.7 233.3
71 57 475.0 237.5
73 58 483.3 241.7
74 59 491.7 245.8
75 60 500.0 250.0
76 61 508.3 254.2
78 62 516.7 258.3
79 63 525.0 262.5
80 64 533.3 266.7
81 65 541.7 270.8
83 66 550.0 275.0
84 67 558.3 279.2
85 68 566.7 283.3
86 69 575.0 287.5
88 70 583.3 291.7
89 71 591.7 295.8
90 72 600.0 300.0
91 73 608.3 304.2
93 74 616.7 308.3
94 75 625.0 312.5
95 76 633.3 316.7
96 77 641.7 320.8
98 78 650.0 325.0
99 79 658.3 329.2
kVA kW 120 240
100 80 666.7 333.3
101 81 675.0 337.5
103 82 683.3 341.7
104 83 691.7 345.8
105 84 700.0 350.0
106 85 708.3 354.2
108 86 716.7 358.3
109 87 725.0 362.5
110 88 733.3 366.7
111 89 741.7 370.8
113 90 750.0 375.0
114 91 758.3 379.2
115 92 766.7 383.3
116 93 775.0 387.5
118 94 783.3 391.7
119 95 791.7 395.8
120 96 800.0 400.0
121 97 808.3 404.2
123 98 816.7 408.3
124 99 825.0 412.5
125 100 833.3 416.7
126 101 841.7 420.8
128 102 850.0 425.0
129 103 858.3 429.2
130 104 866.7 433.3
131 105 875.0 437.5
133 106 883.3 441.7
134 107 891.7 445.8
135 108 900.0 450.0
136 109 908.3 454.2
138 110 916.7 458.3
139 111 925.0 462.5
140 112 933.3 466.7
141 113 941.7 470.8
143 114 950.0 475.0
144 115 958.3 479.2
145 116 966.7 483.3
146 117 975.0 487.5
148 118 983.3 491.7
149 119 991.7 495.8
150 120 1000.0 500.0
151 121 1008.3 504.2
153 122 1016.7 508.3
154 123 1025.0 512.5
155 124 1033.3 516.7
156 125 1041.7 520.8
158 126 1050.0 525.0
159 127 1058.3 529.2
160 128 1066.7 533.3
161 129 1075.0 537.5
163 130 1083.3 541.7
164 131 1091.7 545.8
165 132 1100.0 550.0
166 133 1108.3 554.2
168 134 1116.7 558.3
169 135 1125.0 562.5
170 136 1133.3 566.7
171 137 1141.7 570.8
173 138 1150.0 575.0
174 139 1158.3 579.2
175 140 1166.7 583.3
176 141 1175.0 587.5
178 142 1183.3 591.7
179 143 1191.7 595.8
180 144 1200.0 600.0
181 145 1208.3 604.2
183 146 1216.7 608.3
184 147 1225.0 612.5
185 148 1233.3 616.7
186 149 1241.7 620.8
188 150 1250.0 625.0
189 151 1258.3 629.2
190 152 1266.7 633.3
191 153 1275.0 637.5
193 154 1283.3 641.7
194 155 1291.7 645.8
195 156 1300.0 650.0
196 157 1308.3 654.2
198 158 1316.7 658.3
199 159 1325.0 662.5
kVA kW 120 240
200 160 1333.3 666.7
201 161 1341.7 670.8
203 162 1350.0 675.0
204 163 1358.3 679.2
205 164 1366.7 683.3
206 165 1375.0 687.5
208 166 1383.3 691.7
209 167 1391.7 695.8
210 168 1400.0 700.0
211 169 1408.3 704.2
213 170 1416.7 708.3
214 171 1425.0 712.5
215 172 1433.3 716.7
216 173 1441.7 720.8
218 174 1450.0 725.0
219 175 1458.3 729.2
220 176 1466.7 733.3
221 177 1475.0 737.5
223 178 1483.3 741.7
224 179 1491.7 745.8
225 180 1500.0 750.0
226 181 1508.3 754.2
228 182 1516.7 758.3
229 183 1525.0 762.5
230 184 1533.3 766.7
231 185 1541.7 770.8
233 186 1550.0 775.0
234 187 1558.3 779.2
235 188 1566.7 783.3
236 189 1575.0 787.5
238 190 1583.3 791.7
239 191 1591.7 795.8
240 192 1600.0 800.0
241 193 1608.3 804.2
243 194 1616.7 808.3
244 195 1625.0 812.5
245 196 1633.3 816.7
246 197 1641.7 820.8
248 198 1650.0 825.0
249 199 1658.3 829.2
250 200 1666.7 833.3
251 201 1675.0 837.5
253 202 1683.3 841.7
254 203 1691.7 845.8
255 204 1700.0 850.0
256 205 1708.3 854.2
258 206 1716.7 858.3
259 207 1725.0 862.5
260 208 1733.3 866.7
261 209 1741.7 870.8
263 210 1750.0 875.0
264 211 1758.3 879.2
265 212 1766.7 883.3
266 213 1775.0 887.5
268 214 1783.3 891.7
269 215 1791.7 895.8
270 216 1800.0 900.0
271 217 1808.3 904.2
273 218 1816.7 908.3
274 219 1825.0 912.5
275 220 1833.3 916.7
276 221 1841.7 920.8
278 222 1850.0 925.0
279 223 1858.3 929.2
280 224 1866.7 933.3
281 225 1875.0 937.5
283 226 1883.3 941.7
284 227 1891.7 945.8
285 228 1900.0 950.0
286 229 1908.3 954.2
288 230 1916.7 958.3
289 231 1925.0 962.5
290 232 1933.3 966.7
291 233 1941.7 970.8
293 234 1950.0 975.0
294 235 1958.3 979.2
295 236 1966.7 983.3
296 237 1975.0 987.5
298 238 1983.3 991.7
299 239 1991.7 995.8
kVA kW 120 240
300 240 2000.0 1000.0
301 241 2008.3 1004.2
303 242 2016.7 1008.3
304 243 2025.0 1012.5
305 244 2033.3 1016.7
306 245 2041.7 1020.8
308 246 2050.0 1025.0
309 247 2058.3 1029.2
310 248 2066.7 1033.3
311 249 2075.0 1037.5
313 250 2083.3 1041.7
314 251 2091.7 1045.8
315 252 2100.0 1050.0
316 253 2108.3 1054.2
318 254 2116.7 1058.3
319 255 2125.0 1062.5
320 256 2133.3 1066.7
321 257 2141.7 1070.8
323 258 2150.0 1075.0
324 259 2158.3 1079.2
325 260 2166.7 1083.3
326 261 2175.0 1087.5
328 262 2183.3 1091.7
329 263 2191.7 1095.8
330 264 2200.0 1100.0
331 265 2208.3 1104.2
333 266 2216.7 1108.3
334 267 2225.0 1112.5
335 268 2233.3 1116.7
336 269 2241.7 1120.8
338 270 2250.0 1125.0
339 271 2258.3 1129.2
340 272 2266.7 1133.3
341 273 2275.0 1137.5
343 274 2283.3 1141.7
344 275 2291.7 1145.8
345 276 2300.0 1150.0
346 277 2308.3 1154.2
348 278 2316.7 1158.3
349 279 2325.0 1162.5
350 280 2333.3 1166.7
kVA kW 120 240

1 PHASE AMPERES - 100% POWER FACTOR* (Extended Table)

(kW Times 1000) divided by Volts

To convert kW into watts multiply kW (x) 1000

POWER (WATTS) = VOLTS times AMPERES

AMPERES = POWER (WATTS) divided by VOLTS

VOLTS = POWER (WATTS) divided by AMPS

*All values shown are approximate.

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