400 Volt Three Phase Isolation Transformers

H. 400 Volt Primary Three Phase Isolation Transformers

TEMCo Three Phase Isolation Transformers are 50/60 Hz rated and come in a NEMA 3R enclosure for indoor use as well as outdoor protection against rain and sleet. Our transformers are built to last, guaranteed. That's why we back these with a decade long warranty.

  • UL Listed, CSA Approved
  • Aluminum or Copper windings
  • 50/60 Hz rated
  • NEMA 3R Enclosure (for indoor or outdoor use)

Looking for a different specification? See all the primary voltage configurations here.

TEMCO 3 Phase Isolation Transformer

1. 400V Primary - 600Y/347 Secondary

kVA Output Amps Aluminum Copper
3 2.89 - T45865
6 5.77 - T45866
9 8.66 - T45867
15 14.43 T40384 T45868
30 28.87 T40385 T45869
45 43.30 T40386 T45870
75 72.17 T40387 T45871
112.5 108.26 T40388 T45872
150 144.34 T40389 T45873
225 216.51 T40390 T45874
300 288.68 T40391 T45875
450 433.03 T40392 T45876
500 481.14 T40393 T45877
600 577.37 T40394 T45878
750 721.71 T40395 T45879

2. 400V Primary - 575Y/230 Secondary

kVA Output Amps Aluminum Copper
3 3.01 - T45880
6 6.02 - T45881
9 9.04 - T45882
15 15.06 T40396 T45883
30 30.12 T40397 T45884
45 45.19 T40398 T45885
75 75.31 T40399 T45886
112.5 112.96 T40400 T45887
150 150.62 T40401 T45888
225 225.93 T40402 T45889
300 301.24 T40403 T45890
450 451.85 T40404 T45891
500 502.06 T40405 T45892
600 602.47 T40406 T45893
750 753.09 T40407 T45894

3. 400V Primary - 550Y/316 Secondary

kVA Output Amps Aluminum Copper
3 3.15 - T45895
6 6.30 - T45896
9 9.45 - T45897
15 15.75 T40408 T45898
30 31.49 T40409 T45899
45 47.24 T40410 T45900
75 78.73 T40411 T45901
112.5 118.10 T40412 T45902
150 157.46 T40413 T45903
225 236.20 T40414 T45904
300 314.93 T40415 T45905
450 472.39 T40416 T45906
500 524.88 T40417 T45907
600 629.86 T40418 T45908
750 787.32 T40419 T45909

4. 400V Primary - 480Y/277 Secondary

kVA Output Amps Aluminum Copper
3 3.61 - T45910
6 7.22 - T45911
9 10.83 - T45912
15 18.04 T40420 T45913
30 36.09 T40421 T45914
45 54.13 T40422 T45915
75 90.21 T40423 T45916
112.5 135.32 T40424 T45917
150 180.43 T40425 T45918
225 270.64 T40426 T45919
300 360.85 T40427 T45920
450 541.28 T40428 T45921
500 601.42 T40429 T45922
600 721.71 T40430 T45923
750 902.14 T40431 T45924

5. 400V Primary - 460V Delta Secondary

kVA Output Amps Aluminum Copper
3 3.77 - T45925
6 7.53 - T45926
9 11.30 - T45927
15 18.83 T40432 T45928
30 37.65 T40433 T45929
45 56.48 T40434 T45930
75 94.14 T40435 T45931
112.5 141.20 T40436 T45932
150 188.27 T40437 T45933
225 282.41 T40438 T45934
300 376.54 T40439 T45935
450 564.82 T40440 T45936
500 627.57 T40441 T45937
600 753.09 T40442 T45938
750 941.36 T40443 T45939

6. 400V Primary - 440V Delta Secondary

kVA Output Amps Aluminum Copper
3 3.94 - T45940
6 7.87 - T45941
9 11.81 - T45942
15 19.68 T40444 T45943
30 39.37 T40445 T45944
45 59.05 T40446 T45945
75 98.41 T40447 T45946
112.5 147.62 T40448 T45947
150 196.83 T40449 T45948
225 295.24 T40450 T45949
300 393.66 T40451 T45950
450 590.49 T40452 T45951
500 656.10 T40453 T45952
600 787.32 T40454 T45953
750 984.15 T40455 T45954

7. 400V Primary - 416Y/240 Secondary

kVA Output Amps Aluminum Copper
3 4.16 - T45955
6 8.33 - T45956
9 12.49 - T45957
15 20.82 T40456 T45958
30 41.64 T40457 T45959
45 62.46 T40458 T45960
75 104.09 T40459 T45961
112.5 156.14 T40460 T45962
150 208.19 T40461 T45963
225 312.28 T40462 T45964
300 416.37 T40463 T45965
450 624.56 T40464 T45966
500 693.95 T40465 T45967
600 832.74 T40466 T45968
750 1040.93 T40467 T45969

8. 400V Primary - 400Y/230 Secondary

kVA Output Amps Aluminum Copper
3 4.33 - T45970
6 8.66 - T45971
9 12.99 - T45972
15 21.65 T40468 T45973
30 43.30 T40469 T45974
45 64.95 T40470 T45975
75 108.26 T40471 T45976
112.5 162.38 T40472 T45977
150 216.51 T40473 T45978
225 324.77 T40474 T45979
300 433.03 T40475 T45980
450 649.54 T40476 T45981
500 721.71 T40477 T45982
600 866.05 T40478 T45983
750 1082.56 T40479 T45984

9. 400V Primary - 380Y/220 Secondary

kVA Output Amps Aluminum Copper
3 4.56 - T45985
6 9.12 - T45986
9 13.67 - T45987
15 22.79 T40480 T45988
30 45.58 T40481 T45989
45 68.37 T40482 T45990
75 113.95 T40483 T45991
112.5 170.93 T40484 T45992
150 227.91 T40485 T45993
225 341.86 T40486 T45994
300 455.82 T40487 T45995
450 683.72 T40488 T45996
500 759.69 T40489 T45997
600 911.63 T40490 T45998
750 1139.54 T40491 T45999

10. 400V Primary - 240Y/139 Secondary

kVA Output Amps Aluminum Copper
3 7.22 - T46000
6 14.43 - T46001
9 21.65 - T46002
15 36.09 T40492 T46003
30 72.17 T40493 T46004
45 108.26 T40494 T46005
75 180.43 T40495 T46006
112.5 270.64 T40496 T46007
150 360.85 T40497 T46008
225 541.28 T40498 T46009
300 721.71 T40499 T46010
450 1082.56 T40500 T46011
500 1202.85 T40501 T46012
600 1443.42 T40502 T46013
750 1804.27 T40503 T46014

11. 400V Primary - 240CTD/120 Secondary

kVA Output Amps Aluminum Copper
3 7.22 - T46015
6 14.43 - T46016
9 21.65 - T46017
15 36.09 T40504 T46018
30 72.17 T40505 T46019
45 108.26 T40506 T46020
75 180.43 T40507 T46021
112.5 270.64 T40508 T46022
150 360.85 T40509 T46023
225 541.28 T40510 T46024
300 721.71 T40511 T46025
450 1082.56 T40512 T46026
500 1202.85 T40513 T46027
600 1443.42 T40514 T46028
750 1804.27 T40515 T46029

12. 400V Primary - 230Y/133 Secondary

kVA Output Amps Aluminum Copper
3 7.53 - T46030
6 15.06 - T46031
9 22.59 - T46032
15 37.65 T40516 T46033
30 75.31 T40517 T46034
45 112.96 T40518 T46035
75 188.27 T40519 T46036
112.5 282.41 T40520 T46037
150 376.54 T40521 T46038
225 564.82 T40522 T46039
300 753.09 T40523 T46040
450 1129.63 T40524 T46041
500 1255.15 T40525 T46042
600 1506.18 T40526 T46043
750 1882.72 T40527 T46044

13. 400V Primary - 220Y/127 Secondary

kVA Output Amps Aluminum Copper
3 7.87 - T46045
6 15.75 - T46046
9 23.62 - T46047
15 39.37 T40528 T46048
30 78.73 T40529 T46049
45 118.10 T40530 T46050
75 196.83 T40531 T46051
112.5 295.24 T40532 T46052
150 393.66 T40533 T46053
225 590.49 T40534 T46054
300 787.32 T40535 T46055
450 1180.98 T40536 T46056
500 1312.20 T40537 T46057
600 1574.64 T40538 T46058
750 1968.30 T40539 T46059

14. 400V Primary - 216V Delta Secondary

kVA Output Amps Aluminum Copper
3 8.02 - T46060
6 16.04 - T46061
9 24.06 - T46062
15 40.09 T40540 T46063
30 80.19 T40541 T46064
45 120.28 T40542 T46065
75 200.47 T40543 T46066
112.5 300.71 T40544 T46067
150 400.95 T40545 T46068
225 601.42 T40546 T46069
300 801.90 T40547 T46070
450 1202.85 T40548 T46071
500 1336.50 T40549 T46072
600 1603.80 T40550 T46073
750 2004.75 T40551 T46074

15. 400V Primary - 208Y/120 Secondary

kVA Output Amps Aluminum Copper
3 8.33 - TT1594
6 16.65 - TT1595
9 24.98 - TT1596
15 41.64 T40552 T46078
30 83.27 T40553 T46079
45 124.91 T40554 T46080
75 208.19 T40555 T46081
112.5 312.28 T40556 T46082
150 416.37 T40557 T46083
225 624.56 T40558 T46084
300 832.74 T40559 T46085
450 1249.11 T40560 T46086
500 1387.90 T40561 T46087
600 1665.48 T40562 T46088
750 2081.85 T40563 T46089

16. 400V Primary - 200Y/115 Secondary

kVA Output Amps Aluminum Copper
3 8.66 - T46090
6 17.32 - T46091
9 25.98 - T46092
15 43.30 T40564 T46093
30 86.61 T40565 T46094
45 129.91 T40566 T46095
75 216.51 T40567 T46096
112.5 324.77 T40568 T46097
150 433.03 T40569 T46098
225 649.54 T40570 T46099
300 866.05 T40571 T46100
450 1299.08 T40572 T46101
500 1443.42 T40573 T46102
600 1732.10 T40574 T46103
750 2165.13 T40575 T46104

17. 400V Primary - 190Y/110 Secondary

kVA Output Amps Aluminum Copper
3 9.12 - T46105
6 18.23 - T46106
9 27.35 - T46107
15 45.58 T40576 T46108
30 91.16 T40577 T46109
45 136.74 T40578 T46110
75 227.91 T40579 T46111
112.5 341.86 T40580 T46112
150 455.82 T40581 T46113
225 683.72 T40582 T46114
300 911.63 T40583 T46115
450 1367.45 T40584 T46116
500 1519.39 T40585 T46117
600 1823.26 T40586 T46118
750 2279.08 T40587 T46119

18. 400V Primary - 120V Delta Secondary

kVA Output Amps Aluminum Copper
3 14.43 - T46120
6 28.87 - T46121
9 43.30 - T46122
15 72.17 T40588 T46123
30 144.34 T40589 T46124
45 216.51 T40590 T46125
75 360.85 T40591 T46126
112.5 541.28 T40592 T46127
150 721.71 T40593 T46128
225 1082.56 T40594 T46129
300 1443.42 T40595 T46130
450 2165.13 T40596 T46131
500 2405.70 T40597 T46132
600 2886.84 T40598 T46133
750 3608.55 T40599 T46134

19. 400V Primary - 115V Delta Secondary

kVA Output Amps Aluminum Copper
3 15.06 - T46135
6 30.12 - T46136
9 45.19 - T46137
15 75.31 T40600 T46138
30 150.62 T40601 T46139
45 225.93 T40602 T46140
75 376.54 T40603 T46141
112.5 564.82 T40604 T46142
150 753.09 T40605 T46143
225 1129.63 T40606 T46144
300 1506.18 T40607 T46145
450 2259.26 T40608 T46146
500 2510.29 T40609 T46147
600 3012.35 T40610 T46148
750 3765.44 T40611 T46149

20. 400V Primary - 110V Delta Secondary

kVA Output Amps Aluminum Copper
3 15.75 - T46150
6 31.49 - T46151
9 47.24 - T46152
15 78.73 T40612 T46153
30 157.46 T40613 T46154
45 236.20 T40614 T46155
75 393.66 T40615 T46156
112.5 590.49 T40616 T46157
150 787.32 T40617 T46158
225 1180.98 T40618 T46159
300 1574.64 T40619 T46160
450 2361.96 T40620 T46161
500 2624.40 T40621 T46162
600 3149.28 T40622 T46163
750 3936.59 T40623 T46164

21. 400V Primary - 100V Delta Secondary

kVA Output Amps Aluminum Copper
3 17.32 - T46165
6 34.64 - T46166
9 51.96 - T46167
15 86.61 T40624 T46168
30 173.21 T40625 T46169
45 259.82 T40626 T46170
75 433.03 T40627 T46171
112.5 649.54 T40628 T46172
150 866.05 T40629 T46173
225 1299.08 T40630 T46174
300 1732.10 T40631 T46175
450 2598.15 T40632 T46176
500 2886.84 T40633 T46177
600 3464.20 T40634 T46178
750 4330.25 T40635 T46179