M. 230 Volts Primary, Single Phase Autotransformers
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TEMCo Single Phase Autotransformers 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? Click here to see all the primary voltage configurations, or see our full selection of autotransformers here.
Product Selection
230V Primary, Copper Wound, 1 Phase Autotransformers
| kVA | Select Secondary Voltage Below | |||||||
| 460V | 440V | 416V | 400V | 380V | 347V | 277V | 240V | |
| 3 | T51610 | T51620 | T51630 | T51640 | T51650 | T51660 | T51670 | T51680 |
| 5 | T51611 | T51621 | T51631 | T51641 | T51651 | T51661 | T51671 | T51681 |
| 7 | T51612 | T51622 | T51632 | T51642 | T51652 | T51662 | T51672 | T51682 |
| 10 | T51613 | T51623 | T51633 | T51643 | T51653 | T51663 | T51673 | T51683 |
| 15 | T51614 | T51624 | T51634 | T51644 | T51654 | T51664 | T51674 | T51684 |
| 25 | T51615 | T51625 | T51635 | T51645 | T51655 | T51665 | T51675 | T51685 |
| 37 | T51616 | T51626 | T51636 | T51646 | T51656 | T51666 | T51676 | T51686 |
| 50 | T51617 | T51627 | T51637 | T51647 | T51657 | T51667 | T51677 | T51687 |
| 75 | T51618 | T51628 | T51638 | T51648 | T51658 | T51668 | T51678 | T51688 |
| 100 | T51619 | T51629 | T51639 | T51649 | T51659 | T51669 | T51679 | T51689 |
| kVA | Select Secondary Voltage Below | ||||||
| 230V | 220V | 208V | 200V | 190V | 120V | 115V | |
| 3 | T51690 | T51700 | T51710 | T51720 | T51730 | T51740 | T51750 |
| 5 | T51691 | T51701 | T51711 | T51721 | T51731 | T51741 | T51751 |
| 7 | T51692 | T51702 | T51712 | T51722 | T51732 | T51742 | T51752 |
| 10 | T51693 | T51703 | T51713 | T51723 | T51733 | T51743 | T51753 |
| 15 | T51694 | T51704 | T51714 | T51724 | T51734 | T51744 | T51754 |
| 25 | T51695 | T51705 | T51715 | T51725 | T51735 | T51745 | T51755 |
| 37 | T51696 | T51706 | T51716 | T51726 | T51736 | T51746 | T51756 |
| 50 | T51697 | T51707 | T51717 | T51727 | T51737 | T51747 | T51757 |
| 75 | T51698 | T51708 | T51718 | T51728 | T51738 | T51748 | T51758 |
| 100 | T51699 | T51709 | T51719 | T51729 | T51739 | T51749 | T51759 |
Output Amps
| kVA | Output Amps at: | ||||||||||||||
| 460V | 440V | 416V | 400V | 380V | 347V | 277V | 240V | 230V | 220V | 208V | 200V | 190V | 120V | 115V | |
| 3 | 6.52 | 6.8 | 7.2 | 7.5 | 7.9 | 8.7 | 10.8 | 12.5 | 13 | 13.6 | 14.4 | 15 | 15.8 | 25 | 26.1 |
| 5 | 10.9 | 11.4 | 12 | 12.5 | 13.2 | 14.4 | 18.1 | 20.8 | 21.7 | 22.7 | 24 | 25 | 26.3 | 41.7 | 43.5 |
| 7 | 15.2 | 15.9 | 16.8 | 17.5 | 18.4 | 20.2 | 25.3 | 29.2 | 30.4 | 31.8 | 33.7 | 35 | 36.8 | 58.3 | 60.9 |
| 10 | 21.74 | 22.7 | 24 | 25 | 26.3 | 28.8 | 36.1 | 41.7 | 43.5 | 45.5 | 48.1 | 50 | 52.6 | 83.3 | 86.96 |
| 15 | 32.61 | 34.1 | 36.1 | 37.5 | 39.5 | 43.2 | 54.2 | 62.5 | 65.2 | 68.2 | 72.1 | 75 | 79 | 125 | 130.4 |
| 25 | 54.35 | 56.8 | 60.1 | 62.5 | 65.8 | 72.1 | 90.3 | 104.2 | 108.7 | 113.6 | 120.2 | 125 | 131.6 | 208.3 | 217.4 |
| 37 | 80.43 | 84.1 | 88.9 | 92.5 | 97.4 | 106.6 | 133.6 | 154.2 | 160.9 | 168.2 | 177.9 | 185 | 194.7 | 308.3 | 321.7 |
| 50 | 108.7 | 113.64 | 120.2 | 125 | 131.6 | 144.1 | 180.5 | 208.3 | 217.4 | 227.3 | 240.4 | 250 | 263.2 | 416.7 | 434.8 |
| 75 | 163 | 170.45 | 180.3 | 187.5 | 197.4 | 216.1 | 270.76 | 312.5 | 326.1 | 340.9 | 360.6 | 375 | 394.7 | 625 | 652.2 |
| 100 | 217.4 | 227.3 | 240.4 | 250 | 263.2 | 288.2 | 361.01 | 416.7 | 434.8 | 454.6 | 480.8 | 500 | 526.3 | 833.3 | 869.6 |