N. 347 Volt Primary Single Phase Isolation Transformers
TEMCo Single 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. 600 | 15. 277 |
2. 575 | 16. 240 |
3. 550 | 17. 120/240 |
4. 480 | 18. 230 |
5. 240/480 | 19. 115/230 |
6. 460 | 20. 220 |
7. 230/460 | 21. 110/220 |
8. 440 | 22. 208 |
9. 220/440 | 23. 200 |
10. 416 | 24. 190 |
11. 208/416 | 25. 120 |
12. 400 | 26. 115 |
13. 380 | 27. 110 |
14. 347 | 28. 100 |
1. 347V Primary - 600 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 5 | - | T32400 |
5 | 8.33 | - | T32401 |
7.5 | 12.5 | - | T32402 |
10 | 16.67 | T21427 | T32403 |
15 | 25 | T21428 | T32404 |
25 | 41.67 | T21429 | T32405 |
37.5 | 62.5 | T21430 | T32406 |
50 | 83.33 | T21431 | T32407 |
75 | 125 | T21432 | T32408 |
100 | 166.67 | T21433 | T32409 |
167 | 278.33 | T21434 | T32410 |
200 | 333.33 | T21435 | T32411 |
250 | 416.67 | T21436 | T32412 |
330 | 550 | T21437 | T32413 |
2. 347V Primary - 575 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 5.22 | - | T32414 |
5 | 8.70 | - | T32415 |
7.5 | 13.04 | - | T32416 |
10 | 17.39 | T21441 | T32417 |
15 | 26.09 | T21442 | T32418 |
25 | 43.48 | T21443 | T32419 |
37.5 | 65.22 | T21444 | T32420 |
50 | 86.96 | T21445 | T32421 |
75 | 130.43 | T21446 | T32422 |
100 | 173.91 | T21447 | T32423 |
167 | 290.43 | T21448 | T32424 |
200 | 347.83 | T21449 | T32425 |
250 | 434.78 | T21450 | T32426 |
330 | 573.91 | T21451 | T32427 |
3. 347V Primary - 550 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 5.45 | - | T32428 |
5 | 9.09 | - | T32429 |
7.5 | 13.64 | - | T32430 |
10 | 18.18 | T21455 | T32431 |
15 | 27.27 | T21456 | T32432 |
25 | 45.45 | T21457 | T32433 |
37.5 | 68.18 | T21458 | T32434 |
50 | 90.91 | T21459 | T32435 |
75 | 136.36 | T21460 | T32436 |
100 | 181.82 | T21461 | T32437 |
167 | 303.64 | T21462 | T32438 |
200 | 363.64 | T21463 | T32439 |
250 | 454.55 | T21464 | T32440 |
330 | 600 | T21465 | T32441 |
4. 347V Primary - 480 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 6.25 | - | T32442 |
5 | 10.42 | - | T32443 |
7.5 | 15.63 | - | T32444 |
10 | 20.83 | T21469 | T32445 |
15 | 31.25 | T21470 | T32446 |
25 | 52.08 | T21471 | T32447 |
37.5 | 78.13 | T21472 | T32448 |
50 | 104.17 | T21473 | T32449 |
75 | 156.25 | T21474 | T32450 |
100 | 208.33 | T21475 | T32451 |
167 | 347.92 | T21476 | T32452 |
200 | 416.67 | T21477 | T32453 |
250 | 520.83 | T21478 | T32454 |
330 | 687.50 | T21479 | T32455 |
5. 347V Primary - 240/480 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 12.5/6.25 | - | T32456 |
5 | 20.83/10.42 | - | T32457 |
7.5 | 31.25/15.63 | - | T32458 |
10 | 41.67/20.83 | T21483 | T32459 |
15 | 62.5/31.25 | T21484 | T32460 |
25 | 104.17/52.08 | T21485 | T32461 |
37.5 | 156.25/78.13 | T21486 | T32462 |
50 | 208.33/104.17 | T21487 | T32463 |
75 | 312.5/156.25 | T21488 | T32464 |
100 | 416.67/208.33 | T21489 | T32465 |
167 | 695.83/347.92 | T21490 | T32466 |
200 | 833.33/416.67 | T21491 | T32467 |
250 | 1041.67/520.83 | T21492 | T32468 |
330 | 1375/687.5 | T21493 | T32469 |
6. 347V Primary - 460 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 6.52 | - | T32470 |
5 | 10.87 | - | T32471 |
7.5 | 16.30 | - | T32472 |
10 | 21.74 | T21497 | T32473 |
15 | 32.61 | T21498 | T32474 |
25 | 54.35 | T21499 | T32475 |
37.5 | 81.52 | T21500 | T32476 |
50 | 108.70 | T21501 | T32477 |
75 | 163.04 | T21502 | T32478 |
100 | 217.39 | T21503 | T32479 |
167 | 363.04 | T21504 | T32480 |
200 | 434.78 | T21505 | T32481 |
250 | 543.48 | T21506 | T32482 |
330 | 717.39 | T21507 | T32483 |
7. 347V Primary - 230/460 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.04/6.52 | - | T32484 |
5 | 21.74/10.87 | - | T32485 |
7.5 | 32.61/16.3 | - | T32486 |
10 | 43.48/21.74 | T21511 | T32487 |
15 | 65.22/32.61 | T21512 | T32488 |
25 | 108.7/54.35 | T21513 | T32489 |
37.5 | 163.04/81.52 | T21514 | T32490 |
50 | 217.39/108.7 | T21515 | T32491 |
75 | 326.09/163.04 | T21516 | T32492 |
100 | 434.78/217.39 | T21517 | T32493 |
167 | 726.09/363.04 | T21518 | T32494 |
200 | 869.57/434.78 | T21519 | T32495 |
250 | 1086.96/543.48 | T21520 | T32496 |
330 | 1434.78/717.39 | T21521 | T32497 |
8. 347V Primary - 440 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 6.82 | - | T32498 |
5 | 11.36 | - | T32499 |
7.5 | 17.05 | - | T32500 |
10 | 22.73 | T21525 | T32501 |
15 | 34.09 | T21526 | T32502 |
25 | 56.82 | T21527 | T32503 |
37.5 | 85.23 | T21528 | T32504 |
50 | 113.64 | T21529 | T32505 |
75 | 170.45 | T21530 | T32506 |
100 | 227.27 | T21531 | T32507 |
167 | 379.55 | T21532 | T32508 |
200 | 454.55 | T21533 | T32509 |
250 | 568.18 | T21534 | T32510 |
330 | 750 | T21535 | T32511 |
9. 347V Primary - 220/440 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.64/6.82 | - | T32512 |
5 | 22.73/11.36 | - | T32513 |
7.5 | 34.09/17.05 | - | T32514 |
10 | 45.45/22.73 | T21539 | T32515 |
15 | 68.18/34.09 | T21540 | T32516 |
25 | 113.64/56.82 | T21541 | T32517 |
37.5 | 170.45/85.23 | T21542 | T32518 |
50 | 227.27/113.64 | T21543 | T32519 |
75 | 340.91/170.45 | T21544 | T32520 |
100 | 454.55/227.27 | T21545 | T32521 |
167 | 759.09/379.55 | T21546 | T32522 |
200 | 909.09/454.55 | T21547 | T32523 |
250 | 1136.36/568.18 | T21548 | T32524 |
330 | 1500/750 | T21549 | T32525 |
10. 347V Primary - 416 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 7.21 | - | T32526 |
5 | 12.02 | - | T32527 |
7.5 | 18.03 | - | T32528 |
10 | 24.04 | T21553 | T32529 |
15 | 36.06 | T21554 | T32530 |
25 | 60.10 | T21555 | T32531 |
37.5 | 90.14 | T21556 | T32532 |
50 | 120.19 | T21557 | T32533 |
75 | 180.29 | T21558 | T32534 |
100 | 240.38 | T21559 | T32535 |
167 | 401.44 | T21560 | T32536 |
200 | 480.77 | T21561 | T32537 |
250 | 600.96 | T21562 | T32538 |
330 | 793.27 | T21563 | T32539 |
11. 347V Primary - 208/416 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 14.42/7.21 | - | T32540 |
5 | 24.04/12.02 | - | T32541 |
7.5 | 36.06/18.03 | - | T32542 |
10 | 48.08/24.04 | T21567 | T32543 |
15 | 72.12/36.06 | T21568 | T32544 |
25 | 120.19/60.1 | T21569 | T32545 |
37.5 | 180.29/90.14 | T21570 | T32546 |
50 | 240.38/120.19 | T21571 | T32547 |
75 | 360.58/180.29 | T21572 | T32548 |
100 | 480.77/240.38 | T21573 | T32549 |
167 | 802.88/401.44 | T21574 | T32550 |
200 | 961.54/480.77 | T21575 | T32551 |
250 | 1201.92/600.96 | T21576 | T32552 |
330 | 1586.54/793.27 | T21577 | T32553 |
12. 347V Primary - 400 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 7.5 | - | T32554 |
5 | 12.5 | - | T32555 |
7.5 | 18.75 | - | T32556 |
10 | 25 | T21581 | T32557 |
15 | 37.5 | T21582 | T32558 |
25 | 62.5 | T21583 | T32559 |
37.5 | 93.75 | T21584 | T32560 |
50 | 125 | T21585 | T32561 |
75 | 187.5 | T21586 | T32562 |
100 | 250 | T21587 | T32563 |
167 | 417.5 | T21588 | T32564 |
200 | 500 | T21589 | T32565 |
250 | 625 | T21590 | T32566 |
330 | 825 | T21591 | T32567 |
13. 347V Primary - 380 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 7.89 | - | T32568 |
5 | 13.16 | - | T32569 |
7.5 | 19.74 | - | T32570 |
10 | 26.32 | T21595 | T32571 |
15 | 39.47 | T21596 | T32572 |
25 | 65.79 | T21597 | T32573 |
37.5 | 98.68 | T21598 | T32574 |
50 | 131.58 | T21599 | T32575 |
75 | 197.37 | T21600 | T32576 |
100 | 263.16 | T21601 | T32577 |
167 | 439.47 | T21602 | T32578 |
200 | 526.32 | T21603 | T32579 |
250 | 657.89 | T21604 | T32580 |
330 | 868.42 | T21605 | T32581 |
14. 347V Primary - 347 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 8.65 | - | T32582 |
5 | 14.41 | - | T32583 |
7.5 | 21.61 | - | T32584 |
10 | 28.82 | T21609 | T32585 |
15 | 43.23 | T21610 | T32586 |
25 | 72.05 | T21611 | T32587 |
37.5 | 108.07 | T21612 | T32588 |
50 | 144.09 | T21613 | T32589 |
75 | 216.14 | T21614 | T32590 |
100 | 288.18 | T21615 | T32591 |
167 | 481.27 | T21616 | T32592 |
200 | 576.37 | T21617 | T32593 |
250 | 720.46 | T21618 | T32594 |
330 | 951.01 | T21619 | T32595 |
15. 347V Primary - 277 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 10.83 | - | T32596 |
5 | 18.05 | - | T32597 |
7.5 | 27.08 | - | T32598 |
10 | 36.10 | T21623 | T32599 |
15 | 54.15 | T21624 | T32600 |
25 | 90.25 | T21625 | T32601 |
37.5 | 135.38 | T21626 | T32602 |
50 | 180.51 | T21627 | T32603 |
75 | 270.76 | T21628 | T32604 |
100 | 361.01 | T21629 | T32605 |
167 | 602.89 | T21630 | T32606 |
200 | 722.02 | T21631 | T32607 |
250 | 902.53 | T21632 | T32608 |
330 | 1191.34 | T21633 | T32609 |
16. 347V Primary - 240 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 12.5 | - | T32610 |
5 | 20.83 | - | T32611 |
7.5 | 31.25 | - | T32612 |
10 | 41.67 | T21637 | T32613 |
15 | 62.5 | T21638 | T32614 |
25 | 104.17 | T21639 | T32615 |
37.5 | 156.25 | T21640 | T32616 |
50 | 208.33 | T21641 | T32617 |
75 | 312.5 | T21642 | T32618 |
100 | 416.67 | T21643 | T32619 |
167 | 695.83 | T21644 | T32620 |
200 | 833.33 | T21645 | T32621 |
250 | 1041.67 | T21646 | T32622 |
330 | 1375 | T21647 | T32623 |
17. 347V Primary - 120/240 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 25/12.5 | - | T32624 |
5 | 41.67/20.83 | - | T32625 |
7.5 | 62.5/31.25 | - | T32626 |
10 | 83.33/41.67 | T21651 | T32627 |
15 | 125/62.5 | T21652 | T32628 |
25 | 208.33/104.17 | T21653 | T32629 |
37.5 | 312.5/156.25 | T21654 | T32630 |
50 | 416.67/208.33 | T21655 | T32631 |
75 | 625/312.5 | T21656 | T32632 |
100 | 833.33/416.67 | T21657 | T32633 |
167 | 1391.67/695.83 | T21658 | T32634 |
200 | 1666.67/833.33 | T21659 | T32635 |
250 | 2083.33/1041.67 | T21660 | T32636 |
330 | 2750/1375 | T21661 | T32637 |
18. 347V Primary - 230 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.04 | - | T32638 |
5 | 21.74 | - | T32639 |
7.5 | 32.61 | - | T32640 |
10 | 43.48 | T21665 | T32641 |
15 | 65.22 | T21666 | T32642 |
25 | 108.70 | T21667 | T32643 |
37.5 | 163.04 | T21668 | T32644 |
50 | 217.39 | T21669 | T32645 |
75 | 326.09 | T21670 | T32646 |
100 | 434.78 | T21671 | T32647 |
167 | 726.09 | T21672 | T32648 |
200 | 869.57 | T21673 | T32649 |
250 | 1086.96 | T21674 | T32650 |
330 | 1434.78 | T21675 | T32651 |
19. 347V Primary - 115/230 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 26.09/13.04 | - | T32652 |
5 | 43.48/21.74 | - | T32653 |
7.5 | 65.22/32.61 | - | T32654 |
10 | 86.96/43.48 | T21679 | T32655 |
15 | 130.43/65.22 | T21680 | T32656 |
25 | 217.39/108.7 | T21681 | T32657 |
37.5 | 326.09/163.04 | T21682 | T32658 |
50 | 434.78/217.39 | T21683 | T32659 |
75 | 652.17/326.09 | T21684 | T32660 |
100 | 869.57/434.78 | T21685 | T32661 |
167 | 1452.17/726.09 | T21686 | T32662 |
200 | 1739.13/869.57 | T21687 | T32663 |
250 | 2173.91/1086.96 | T21688 | T32664 |
330 | 2869.57/1434.78 | T21689 | T32665 |
20. 347V Primary - 220 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.64 | - | T32666 |
5 | 22.73 | - | T32667 |
7.5 | 34.09 | - | T32668 |
10 | 45.45 | T21693 | T32669 |
15 | 68.18 | T21694 | T32670 |
25 | 113.64 | T21695 | T32671 |
37.5 | 170.45 | T21696 | T32672 |
50 | 227.27 | T21697 | T32673 |
75 | 340.91 | T21698 | T32674 |
100 | 454.55 | T21699 | T32675 |
167 | 759.09 | T21700 | T32676 |
200 | 909.09 | T21701 | T32677 |
250 | 1136.36 | T21702 | T32678 |
330 | 1500 | T21703 | T32679 |
21. 347V Primary - 110/220 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 27.27/13.64 | - | T32680 |
5 | 45.45/22.73 | - | T32681 |
7.5 | 68.18/34.09 | - | T32682 |
10 | 90.91/45.45 | T21707 | T32683 |
15 | 136.36/68.18 | T21708 | T32684 |
25 | 227.27/113.64 | T21709 | T32685 |
37.5 | 340.91/170.45 | T21710 | T32686 |
50 | 454.55/227.27 | T21711 | T32687 |
75 | 681.82/340.91 | T21712 | T32688 |
100 | 909.09/454.55 | T21713 | T32689 |
167 | 1518.18/759.09 | T21714 | T32690 |
200 | 1818.18/909.09 | T21715 | T32691 |
250 | 2272.73/1136.36 | T21716 | T32692 |
330 | 3000/1500 | T21717 | T32693 |
22. 347V Primary - 208 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 14.42 | - | T32694 |
5 | 24.04 | - | T32695 |
7.5 | 36.06 | - | T32696 |
10 | 48.08 | T21721 | T32697 |
15 | 72.12 | T21722 | T32698 |
25 | 120.19 | T21723 | T32699 |
37.5 | 180.29 | T21724 | T32700 |
50 | 240.38 | T21725 | T32701 |
75 | 360.58 | T21726 | T32702 |
100 | 480.77 | T21727 | T32703 |
167 | 802.88 | T21728 | T32704 |
200 | 961.54 | T21729 | T32705 |
250 | 1201.92 | T21730 | T32706 |
330 | 1586.54 | T21731 | T32707 |
23. 347V Primary - 200 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 15 | - | T32708 |
5 | 25 | - | T32709 |
7.5 | 37.5 | - | T32710 |
10 | 50 | T21735 | T32711 |
15 | 75 | T21736 | T32712 |
25 | 125 | T21737 | T32713 |
37.5 | 187.5 | T21738 | T32714 |
50 | 250 | T21739 | T32715 |
75 | 375 | T21740 | T32716 |
100 | 500 | T21741 | T32717 |
167 | 835 | T21742 | T32718 |
200 | 1000 | T21743 | T32719 |
250 | 1250 | T21744 | T32720 |
330 | 1650 | T21745 | T32721 |
24. 347V Primary - 190 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 15.79 | - | T32722 |
5 | 26.32 | - | T32723 |
7.5 | 39.47 | - | T32724 |
10 | 52.63 | T21749 | T32725 |
15 | 78.95 | T21750 | T32726 |
25 | 131.58 | T21751 | T32727 |
37.5 | 197.37 | T21752 | T32728 |
50 | 263.16 | T21753 | T32729 |
75 | 394.74 | T21754 | T32730 |
100 | 526.32 | T21755 | T32731 |
167 | 878.95 | T21756 | T32732 |
200 | 1052.63 | T21757 | T32733 |
250 | 1315.79 | T21758 | T32734 |
330 | 1736.84 | T21759 | T32735 |
25. 347V Primary - 120 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 25 | - | T32736 |
5 | 41.67 | - | T32737 |
7.5 | 62.5 | - | T32738 |
10 | 83.33 | T21763 | T32739 |
15 | 125 | T21764 | T32740 |
25 | 208.33 | T21765 | T32741 |
37.5 | 312.5 | T21766 | T32742 |
50 | 416.67 | T21767 | T32743 |
75 | 625 | T21768 | T32744 |
100 | 833.33 | T21769 | T32745 |
167 | 1391.67 | T21770 | T32746 |
200 | 1666.67 | T21771 | T32747 |
250 | 2083.33 | T21772 | T32748 |
330 | 2750 | T21773 | T32749 |
26. 347V Primary - 115 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 26.09 | - | T32750 |
5 | 43.48 | - | T32751 |
7.5 | 65.22 | - | T32752 |
10 | 86.96 | T21777 | T32753 |
15 | 130.43 | T21778 | T32754 |
25 | 217.39 | T21779 | T32755 |
37.5 | 326.09 | T21780 | T32756 |
50 | 434.78 | T21781 | T32757 |
75 | 652.17 | T21782 | T32758 |
100 | 869.57 | T21783 | T32759 |
167 | 1452.17 | T21784 | T32760 |
200 | 1739.13 | T21785 | T32761 |
250 | 2173.91 | T21786 | T32762 |
330 | 2869.57 | T21787 | T32763 |
27. 347V Primary - 110 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 27.27 | - | T32764 |
5 | 45.45 | - | T32765 |
7.5 | 68.18 | - | T32766 |
10 | 90.91 | T21791 | T32767 |
15 | 136.36 | T21792 | T32768 |
25 | 227.27 | T21793 | T32769 |
37.5 | 340.91 | T21794 | T32770 |
50 | 454.55 | T21795 | T32771 |
75 | 681.82 | T21796 | T32772 |
100 | 909.09 | T21797 | T32773 |
167 | 1518.18 | T21798 | T32774 |
200 | 1818.18 | T21799 | T32775 |
250 | 2272.73 | T21800 | T32776 |
330 | 3000 | T21801 | T32777 |
28. 347V Primary - 100 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 30 | - | T32778 |
5 | 50 | - | T32779 |
7.5 | 75 | - | T32780 |
10 | 100 | T21805 | T32781 |
15 | 150 | T21806 | T32782 |
25 | 250 | T21807 | T32783 |
37.5 | 375 | T21808 | T32784 |
50 | 500 | T21809 | T32785 |
75 | 750 | T21810 | T32786 |
100 | 1000 | T21811 | T32787 |
167 | 1670 | T21812 | T32788 |
200 | 2000 | T21813 | T32789 |
250 | 2500 | T21814 | T32790 |
330 | 3300 | T21815 | T32791 |