N. 220 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
220V Primary, Copper Wound, 1 Phase Autotransformers
| kVA | Select Secondary Voltage Below | |||||||
| 440V | 416V | 400V | 380V | 347V | 277V | 240V | 230V | |
| 3 | T51760 | T51770 | T51780 | T51790 | T51800 | T51810 | T51820 | T51830 |
| 5 | T51761 | T51771 | T51781 | T51791 | T51801 | T51811 | T51821 | T51831 |
| 7 | T51762 | T51772 | T51782 | T51792 | T51802 | T51812 | T51822 | T51832 |
| 10 | T51763 | T51773 | T51783 | T51793 | T51803 | T51813 | T51823 | T51833 |
| 15 | T51764 | T51774 | T51784 | T51794 | T51804 | T51814 | T51824 | T51834 |
| 25 | T51765 | T51775 | T51785 | T51795 | T51805 | T51815 | T51825 | T51835 |
| 37 | T51766 | T51776 | T51786 | T51796 | T51806 | T51816 | T51826 | T51836 |
| 50 | T51767 | T51777 | T51787 | T51797 | T51807 | T51817 | T51827 | T51837 |
| 75 | T51768 | T51778 | T51788 | T51798 | T51808 | T51818 | T51828 | T51838 |
| 100 | T51769 | T51779 | T51789 | T51799 | T51809 | T51819 | T51829 | T51839 |
| kVA | Select Secondary Voltage Below | ||||||
| 220V | 208V | 200V | 190V | 120V | 115V | 110V | |
| 3 | T51840 | T51850 | T51860 | T51870 | T51880 | T51890 | T51900 |
| 5 | T51841 | T51851 | T51861 | T51871 | T51881 | T51891 | T51901 |
| 7 | T51842 | T51852 | T51862 | T51872 | T51882 | T51892 | T51902 |
| 10 | T51843 | T51853 | T51863 | T51873 | T51883 | T51893 | T51903 |
| 15 | T51844 | T51854 | T51864 | T51874 | T51884 | T51894 | T51904 |
| 25 | T51845 | T51855 | T51865 | T51875 | T51885 | T51895 | T51905 |
| 37 | T51846 | T51856 | T51866 | T51876 | T51886 | T51896 | T51906 |
| 50 | T51847 | T51857 | T51867 | T51877 | T51887 | T51897 | T51907 |
| 75 | T51848 | T51858 | T51868 | T51878 | T51888 | T51898 | T51908 |
| 100 | T51849 | T51859 | T51869 | T51879 | T51889 | T51899 | T51909 |
Output Amps
| kVA | Output Amps at: | ||||||||||||||||||||
| 440V | 416V | 400V | 380V | 347V | 277V | 240V | 230V | 220V | 208V | 200V | 190V | 120V | 115V | 110V | 100V | ||||||
| 3 | 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 | 27.3 | 30 | |||||
| 5 | 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 | 45.5 | 50 | |||||
| 7 | 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 | 63.6 | 70 | |||||
| 10 | 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 | 90.9 | 100 | |||||
| 15 | 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 | 136.4 | 150 | |||||
| 25 | 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 | 227.3 | 250 | |||||
| 37 | 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 | 336.4 | 370 | |||||
| 50 | 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 | 454.6 | 500 | |||||
| 75 | 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 | 681.8 | 750 | |||||
| 100 | 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 | 909.1 | 1000 | |||||