D. 480 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.
Select a Different Primary Configuration »
| Secondary Voltages Selection | |
| 1. 600Y/347 | 12. 230Y/133 |
| 2. 575Y/330 | 13. 220Y/127 |
| 3. 550Y/316 | 14. 216 Delta |
| 4. 480Y/277 | 15. 208Y/120 |
| 5. 460 Delta | 16. 200Y/115 |
| 6. 440 Delta | 17. 190Y/110 |
| 7. 416Y/240 | 18. 120 Delta |
| 8. 400Y/230 | 19. 115 Delta |
| 9. 380Y/220 | 20. 110 Delta |
| 10. 240Y/139 | 21. 100 Delta |
| 11. 240CTD/120 | |
1. 480V Primary - 600Y/347 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 2.89 | - | T44605 |
| 6 | 5.77 | - | T44606 |
| 9 | 8.66 | - | T44607 |
| 15 | 14.43 | T39376 | T44608 |
| 30 | 28.87 | T39377 | T44609 |
| 45 | 43.30 | T39378 | T44610 |
| 75 | 72.17 | T39379 | T44611 |
| 112.5 | 108.26 | T39380 | T44612 |
| 150 | 144.34 | T39381 | T44613 |
| 225 | 216.51 | T39382 | T44614 |
| 300 | 288.68 | T39383 | T44615 |
| 450 | 433.03 | T39384 | T44616 |
| 500 | 481.14 | T39385 | T44617 |
| 600 | 577.37 | T39386 | T44618 |
| 750 | 721.71 | T39387 | T44619 |
2. 480V Primary - 575Y/230 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.01 | - | T44620 |
| 6 | 6.02 | - | T44621 |
| 9 | 9.04 | - | T44622 |
| 15 | 15.06 | T39388 | T44623 |
| 30 | 30.12 | T39389 | T44624 |
| 45 | 45.19 | T39390 | T44625 |
| 75 | 75.31 | T39391 | T44626 |
| 112.5 | 112.96 | T39392 | T44627 |
| 150 | 150.62 | T39393 | T44628 |
| 225 | 225.93 | T39394 | T44629 |
| 300 | 301.24 | T39395 | T44630 |
| 450 | 451.85 | T39396 | T44631 |
| 500 | 502.06 | T39397 | T44632 |
| 600 | 602.47 | T39398 | T44633 |
| 750 | 753.09 | T39399 | T44634 |
3. 480V Primary - 550Y/316 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.15 | - | T44635 |
| 6 | 6.30 | - | T44636 |
| 9 | 9.45 | - | T44637 |
| 15 | 15.75 | T39400 | T44638 |
| 30 | 31.49 | T39401 | T44639 |
| 45 | 47.24 | T39402 | T44640 |
| 75 | 78.73 | T39403 | T44641 |
| 112.5 | 118.10 | T39404 | T44642 |
| 150 | 157.46 | T39405 | T44643 |
| 225 | 236.20 | T39406 | T44644 |
| 300 | 314.93 | T39407 | T44645 |
| 450 | 472.39 | T39408 | T44646 |
| 500 | 524.88 | T39409 | T44647 |
| 600 | 629.86 | T39410 | T44648 |
| 750 | 787.32 | T39411 | T44649 |
4. 480V Primary - 480Y/277 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.61 | - | T44650 |
| 6 | 7.22 | - | T44651 |
| 9 | 10.83 | - | T44652 |
| 15 | 18.04 | T39412 | T44653 |
| 30 | 36.09 | T39413 | T44654 |
| 45 | 54.13 | T39414 | T44655 |
| 75 | 90.21 | T39415 | T44656 |
| 112.5 | 135.32 | T39416 | T44657 |
| 150 | 180.43 | T39417 | T44658 |
| 225 | 270.64 | T39418 | T44659 |
| 300 | 360.85 | T39419 | T44660 |
| 450 | 541.28 | T39420 | T44661 |
| 500 | 601.42 | T39421 | T44662 |
| 600 | 721.71 | T39422 | T44663 |
| 750 | 902.14 | T39423 | T44664 |
5. 480V Primary - 460V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.77 | - | T44665 |
| 6 | 7.53 | - | T44666 |
| 9 | 11.30 | - | T44667 |
| 15 | 18.83 | T39424 | T44668 |
| 30 | 37.65 | T39425 | T44669 |
| 45 | 56.48 | T39426 | T44670 |
| 75 | 94.14 | T39427 | T44671 |
| 112.5 | 141.20 | T39428 | T44672 |
| 150 | 188.27 | T39429 | T44673 |
| 225 | 282.41 | T39430 | T44674 |
| 300 | 376.54 | T39431 | T44675 |
| 450 | 564.82 | T39432 | T44676 |
| 500 | 627.57 | T39433 | T44677 |
| 600 | 753.09 | T39434 | T44678 |
| 750 | 941.36 | T39435 | T44679 |
6. 480V Primary - 440V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.94 | - | T44680 |
| 6 | 7.87 | - | T44681 |
| 9 | 11.81 | - | T44682 |
| 15 | 19.68 | T39436 | T44683 |
| 30 | 39.37 | T39437 | T44684 |
| 45 | 59.05 | T39438 | T44685 |
| 75 | 98.41 | T39439 | T44686 |
| 112.5 | 147.62 | T39440 | T44687 |
| 150 | 196.83 | T39441 | T44688 |
| 225 | 295.24 | T39442 | T44689 |
| 300 | 393.66 | T39443 | T44690 |
| 450 | 590.49 | T39444 | T44691 |
| 500 | 656.10 | T39445 | T44692 |
| 600 | 787.32 | T39446 | T44693 |
| 750 | 984.15 | T39447 | T44694 |
7. 480V Primary - 416Y/240 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 4.16 | - | T44695 |
| 6 | 8.33 | - | T44696 |
| 9 | 12.49 | - | T44697 |
| 15 | 20.82 | T39448 | T44698 |
| 30 | 41.64 | T39449 | T44699 |
| 45 | 62.46 | T39450 | T44700 |
| 75 | 104.09 | T39451 | T44701 |
| 112.5 | 156.14 | T39452 | T44702 |
| 150 | 208.19 | T39453 | T44703 |
| 225 | 312.28 | T39454 | T44704 |
| 300 | 416.37 | T39455 | T44705 |
| 450 | 624.56 | T39456 | T44706 |
| 500 | 693.95 | T39457 | T44707 |
| 600 | 832.74 | T39458 | T44708 |
| 750 | 1040.93 | T39459 | T44709 |
8. 480V Primary - 400Y/230 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 4.33 | - | T44710 |
| 6 | 8.66 | - | T44711 |
| 9 | 12.99 | - | T44712 |
| 15 | 21.65 | T39460 | T44713 |
| 30 | 43.30 | T39461 | T44714 |
| 45 | 64.95 | T39462 | T44715 |
| 75 | 108.26 | T39463 | T44716 |
| 112.5 | 162.38 | T39464 | T44717 |
| 150 | 216.51 | T39465 | T44718 |
| 225 | 324.77 | T39466 | T44719 |
| 300 | 433.03 | T39467 | T44720 |
| 450 | 649.54 | T39468 | T44721 |
| 500 | 721.71 | T39469 | T44722 |
| 600 | 866.05 | T39470 | T44723 |
| 750 | 1082.56 | T39471 | T44724 |
9. 480V Primary - 380Y/220 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 4.56 | - | T44725 |
| 6 | 9.12 | - | T44726 |
| 9 | 13.67 | - | T44727 |
| 15 | 22.79 | T39472 | T44728 |
| 30 | 45.58 | T39473 | T44729 |
| 45 | 68.37 | T39474 | T44730 |
| 75 | 113.95 | T39475 | T44731 |
| 112.5 | 170.93 | T39476 | T44732 |
| 150 | 227.91 | T39477 | T44733 |
| 225 | 341.86 | T39478 | T44734 |
| 300 | 455.82 | T39479 | T44735 |
| 450 | 683.72 | T39480 | T44736 |
| 500 | 759.69 | T39481 | T44737 |
| 600 | 911.63 | T39482 | T44738 |
| 750 | 1139.54 | T39483 | T44739 |
10. 480V Primary - 240Y/139 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 7.22 | - | T44740 |
| 6 | 14.43 | - | T44741 |
| 9 | 21.65 | - | T44742 |
| 15 | 36.09 | T39484 | T44743 |
| 30 | 72.17 | T39485 | T44744 |
| 45 | 108.26 | T39486 | T44745 |
| 75 | 180.43 | T39487 | T44746 |
| 112.5 | 270.64 | T39488 | T44747 |
| 150 | 360.85 | T39489 | T44748 |
| 225 | 541.28 | T39490 | T44749 |
| 300 | 721.71 | T39491 | T44750 |
| 450 | 1082.56 | T39492 | T44751 |
| 500 | 1202.85 | T39493 | T44752 |
| 600 | 1443.42 | T39494 | T44753 |
| 750 | 1804.27 | T39495 | T44754 |
11. 480V Primary - 240CTD/120 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 7.22 | - | T44755 |
| 6 | 14.43 | - | T44756 |
| 9 | 21.65 | - | T44757 |
| 15 | 36.09 | T39496 | T44758 |
| 30 | 72.17 | T39497 | T44759 |
| 45 | 108.26 | T39498 | T44760 |
| 75 | 180.43 | T39499 | T44761 |
| 112.5 | 270.64 | T39500 | T44762 |
| 150 | 360.85 | T39501 | T44763 |
| 225 | 541.28 | T39502 | T44764 |
| 300 | 721.71 | T39503 | T44765 |
| 450 | 1082.56 | T39504 | T44766 |
| 500 | 1202.85 | T39505 | T44767 |
| 600 | 1443.42 | T39506 | T44768 |
| 750 | 1804.27 | T39507 | T44769 |
12. 480V Primary - 230Y/133 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 7.53 | - | T44770 |
| 6 | 15.06 | - | T44771 |
| 9 | 22.59 | - | T44772 |
| 15 | 37.65 | T39508 | T44773 |
| 30 | 75.31 | T39509 | T44774 |
| 45 | 112.96 | T39510 | T44775 |
| 75 | 188.27 | T39511 | T44776 |
| 112.5 | 282.41 | T39512 | T44777 |
| 150 | 376.54 | T39513 | T44778 |
| 225 | 564.82 | T39514 | T44779 |
| 300 | 753.09 | T39515 | T44780 |
| 450 | 1129.63 | T39516 | T44781 |
| 500 | 1255.15 | T39517 | T44782 |
| 600 | 1506.18 | T39518 | T44783 |
| 750 | 1882.72 | T39519 | T44784 |
13. 480V Primary - 220Y/127 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 7.87 | - | T44785 |
| 6 | 15.75 | - | T44786 |
| 9 | 23.62 | - | T44787 |
| 15 | 39.37 | T39520 | T44788 |
| 30 | 78.73 | T39521 | T44789 |
| 45 | 118.10 | T39522 | T44790 |
| 75 | 196.83 | T39523 | T44791 |
| 112.5 | 295.24 | T39524 | T44792 |
| 150 | 393.66 | T39525 | T44793 |
| 225 | 590.49 | T39526 | T44794 |
| 300 | 787.32 | T39527 | T44795 |
| 450 | 1180.98 | T39528 | T44796 |
| 500 | 1312.20 | T39529 | T44797 |
| 600 | 1574.64 | T39530 | T44798 |
| 750 | 1968.30 | T39531 | T44799 |
14. 480V Primary - 216V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 8.02 | - | T44800 |
| 6 | 16.04 | - | T44801 |
| 9 | 24.06 | - | T44802 |
| 15 | 40.09 | T39532 | T44803 |
| 30 | 80.19 | T39533 | T44804 |
| 45 | 120.28 | T39534 | T44805 |
| 75 | 200.47 | T39535 | T44806 |
| 112.5 | 300.71 | T39536 | T44807 |
| 150 | 400.95 | T39537 | T44808 |
| 225 | 601.42 | T39538 | T44809 |
| 300 | 801.90 | T39539 | T44810 |
| 450 | 1202.85 | T39540 | T44811 |
| 500 | 1336.50 | T39541 | T44812 |
| 600 | 1603.80 | T39542 | T44813 |
| 750 | 2004.75 | T39543 | T44814 |
15. 480V Primary - 208Y/120 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 8.33 | - | T44815 |
| 6 | 16.65 | - | T44816 |
| 9 | 24.98 | - | T44817 |
| 15 | 41.64 | T39544 | T44818 |
| 30 | 83.27 | T39545 | T44819 |
| 45 | 124.91 | T39546 | T44820 |
| 75 | 208.19 | T39547 | T44821 |
| 112.5 | 312.28 | T39548 | T44822 |
| 150 | 416.37 | T39549 | T44823 |
| 225 | 624.56 | T39550 | T44824 |
| 300 | 832.74 | T39551 | T44825 |
| 450 | 1249.11 | T39552 | T44826 |
| 500 | 1387.90 | T39553 | T44827 |
| 600 | 1665.48 | T39554 | T44828 |
| 750 | 2081.85 | T39555 | T44829 |
16. 480V Primary - 200Y/115 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 8.66 | - | T44830 |
| 6 | 17.32 | - | T44831 |
| 9 | 25.98 | - | T44832 |
| 15 | 43.30 | T39556 | T44833 |
| 30 | 86.61 | T39557 | T44834 |
| 45 | 129.91 | T39558 | T44835 |
| 75 | 216.51 | T39559 | T44836 |
| 112.5 | 324.77 | T39560 | T44837 |
| 150 | 433.03 | T39561 | T44838 |
| 225 | 649.54 | T39562 | T44839 |
| 300 | 866.05 | T39563 | T44840 |
| 450 | 1299.08 | T39564 | T44841 |
| 500 | 1443.42 | T39565 | T44842 |
| 600 | 1732.10 | T39566 | T44843 |
| 750 | 2165.13 | T39567 | T44844 |
17. 480V Primary - 190Y/110 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 9.12 | - | T44845 |
| 6 | 18.23 | - | T44846 |
| 9 | 27.35 | - | T44847 |
| 15 | 45.58 | T39568 | T44848 |
| 30 | 91.16 | T39569 | T44849 |
| 45 | 136.74 | T39570 | T44850 |
| 75 | 227.91 | T39571 | T44851 |
| 112.5 | 341.86 | T39572 | T44852 |
| 150 | 455.82 | T39573 | T44853 |
| 225 | 683.72 | T39574 | T44854 |
| 300 | 911.63 | T39575 | T44855 |
| 450 | 1367.45 | T39576 | T44856 |
| 500 | 1519.39 | T39577 | T44857 |
| 600 | 1823.26 | T39578 | T44858 |
| 750 | 2279.08 | T39579 | T44859 |
18. 480V Primary - 120V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 14.43 | - | T44860 |
| 6 | 28.87 | - | T44861 |
| 9 | 43.30 | - | T44862 |
| 15 | 72.17 | T39580 | T44863 |
| 30 | 144.34 | T39581 | T44864 |
| 45 | 216.51 | T39582 | T44865 |
| 75 | 360.85 | T39583 | T44866 |
| 112.5 | 541.28 | T39584 | T44867 |
| 150 | 721.71 | T39585 | T44868 |
| 225 | 1082.56 | T39586 | T44869 |
| 300 | 1443.42 | T39587 | T44870 |
| 450 | 2165.13 | T39588 | T44871 |
| 500 | 2405.70 | T39589 | T44872 |
| 600 | 2886.84 | T39590 | T44873 |
| 750 | 3608.55 | T39591 | T44874 |
19. 480V Primary - 115V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 15.06 | - | T44875 |
| 6 | 30.12 | - | T44876 |
| 9 | 45.19 | - | T44877 |
| 15 | 75.31 | T39592 | T44878 |
| 30 | 150.62 | T39593 | T44879 |
| 45 | 225.93 | T39594 | T44880 |
| 75 | 376.54 | T39595 | T44881 |
| 112.5 | 564.82 | T39596 | T44882 |
| 150 | 753.09 | T39597 | T44883 |
| 225 | 1129.63 | T39598 | T44884 |
| 300 | 1506.18 | T39599 | T44885 |
| 450 | 2259.26 | T39600 | T44886 |
| 500 | 2510.29 | T39601 | T44887 |
| 600 | 3012.35 | T39602 | T44888 |
| 750 | 3765.44 | T39603 | T44889 |
20. 480V Primary - 110V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 15.75 | - | T44890 |
| 6 | 31.49 | - | T44891 |
| 9 | 47.24 | - | T44892 |
| 15 | 78.73 | T39604 | T44893 |
| 30 | 157.46 | T39605 | T44894 |
| 45 | 236.20 | T39606 | T44895 |
| 75 | 393.66 | T39607 | T44896 |
| 112.5 | 590.49 | T39608 | T44897 |
| 150 | 787.32 | T39609 | T44898 |
| 225 | 1180.98 | T39610 | T44899 |
| 300 | 1574.64 | T39611 | T44900 |
| 450 | 2361.96 | T39612 | T44901 |
| 500 | 2624.40 | T39613 | T44902 |
| 600 | 3149.28 | T39614 | T44903 |
| 750 | 3936.59 | T39615 | T44904 |
21. 480V Primary - 100V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 17.32 | - | T44905 |
| 6 | 34.64 | - | T44906 |
| 9 | 51.96 | - | T44907 |
| 15 | 86.61 | T39616 | T44908 |
| 30 | 173.21 | T39617 | T44909 |
| 45 | 259.82 | T39618 | T44910 |
| 75 | 433.03 | T39619 | T44911 |
| 112.5 | 649.54 | T39620 | T44912 |
| 150 | 866.05 | T39621 | T44913 |
| 225 | 1299.08 | T39622 | T44914 |
| 300 | 1732.10 | T39623 | T44915 |
| 450 | 2598.15 | T39624 | T44916 |
| 500 | 2886.84 | T39625 | T44917 |
| 600 | 3464.20 | T39626 | T44918 |
| 750 | 4330.25 | T39627 | T44919 |