Y. 120 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. 120V Primary - 600 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 5 | - | T36712 |
5 | 8.33 | - | T36713 |
7.5 | 12.5 | - | T36714 |
10 | 16.67 | T25739 | T36715 |
15 | 25 | T25740 | T36716 |
25 | 41.67 | T25741 | T36717 |
37.5 | 62.5 | T25742 | T36718 |
50 | 83.33 | T25743 | T36719 |
75 | 125 | T25744 | T36720 |
100 | 166.67 | T25745 | T36721 |
167 | 278.33 | T25746 | T36722 |
200 | 333.33 | T25747 | T36723 |
250 | 416.67 | T25748 | T36724 |
330 | 550 | T25749 | T36725 |
2. 120V Primary - 575 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 5.22 | - | T36726 |
5 | 8.70 | - | T36727 |
7.5 | 13.04 | - | T36728 |
10 | 17.39 | T25753 | T36729 |
15 | 26.09 | T25754 | T36730 |
25 | 43.48 | T25755 | T36731 |
37.5 | 65.22 | T25756 | T36732 |
50 | 86.96 | T25757 | T36733 |
75 | 130.43 | T25758 | T36734 |
100 | 173.91 | T25759 | T36735 |
167 | 290.43 | T25760 | T36736 |
200 | 347.83 | T25761 | T36737 |
250 | 434.78 | T25762 | T36738 |
330 | 573.91 | T25763 | T36739 |
3. 120V Primary - 550 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 5.45 | - | T36740 |
5 | 9.09 | - | T36741 |
7.5 | 13.64 | - | T36742 |
10 | 18.18 | T25767 | T36743 |
15 | 27.27 | T25768 | T36744 |
25 | 45.45 | T25769 | T36745 |
37.5 | 68.18 | T25770 | T36746 |
50 | 90.91 | T25771 | T36747 |
75 | 136.36 | T25772 | T36748 |
100 | 181.82 | T25773 | T36749 |
167 | 303.64 | T25774 | T36750 |
200 | 363.64 | T25775 | T36751 |
250 | 454.55 | T25776 | T36752 |
330 | 600 | T25777 | T36753 |
4. 120V Primary - 480 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 6.25 | - | T36754 |
5 | 10.42 | - | T36755 |
7.5 | 15.63 | - | T36756 |
10 | 20.83 | T25781 | T36757 |
15 | 31.25 | T25782 | T36758 |
25 | 52.08 | T25783 | T36759 |
37.5 | 78.13 | T25784 | T36760 |
50 | 104.17 | T25785 | T36761 |
75 | 156.25 | T25786 | T36762 |
100 | 208.33 | T25787 | T36763 |
167 | 347.92 | T25788 | T36764 |
200 | 416.67 | T25789 | T36765 |
250 | 520.83 | T25790 | T36766 |
330 | 687.50 | T25791 | T36767 |
5. 120V Primary - 240/480 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 12.5/6.25 | - | T36768 |
5 | 20.83/10.42 | - | T36769 |
7.5 | 31.25/15.63 | - | T36770 |
10 | 41.67/20.83 | T25795 | T36771 |
15 | 62.5/31.25 | T25796 | T36772 |
25 | 104.17/52.08 | T25797 | T36773 |
37.5 | 156.25/78.13 | T25798 | T36774 |
50 | 208.33/104.17 | T25799 | T36775 |
75 | 312.5/156.25 | T25800 | T36776 |
100 | 416.67/208.33 | T25801 | T36777 |
167 | 695.83/347.92 | T25802 | T36778 |
200 | 833.33/416.67 | T25803 | T36779 |
250 | 1041.67/520.83 | T25804 | T36780 |
330 | 1375/687.5 | T25805 | T36781 |
6. 120V Primary - 460 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 6.52 | - | T36782 |
5 | 10.87 | - | T36783 |
7.5 | 16.30 | - | T36784 |
10 | 21.74 | T25809 | T36785 |
15 | 32.61 | T25810 | T36786 |
25 | 54.35 | T25811 | T36787 |
37.5 | 81.52 | T25812 | T36788 |
50 | 108.70 | T25813 | T36789 |
75 | 163.04 | T25814 | T36790 |
100 | 217.39 | T25815 | T36791 |
167 | 363.04 | T25816 | T36792 |
200 | 434.78 | T25817 | T36793 |
250 | 543.48 | T25818 | T36794 |
330 | 717.39 | T25819 | T36795 |
7. 120V Primary - 230/460 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.04/6.52 | - | T36796 |
5 | 21.74/10.87 | - | T36797 |
7.5 | 32.61/16.3 | - | T36798 |
10 | 43.48/21.74 | T25823 | T36799 |
15 | 65.22/32.61 | T25824 | T36800 |
25 | 108.7/54.35 | T25825 | T36801 |
37.5 | 163.04/81.52 | T25826 | T36802 |
50 | 217.39/108.7 | T25827 | T36803 |
75 | 326.09/163.04 | T25828 | T36804 |
100 | 434.78/217.39 | T25829 | T36805 |
167 | 726.09/363.04 | T25830 | T36806 |
200 | 869.57/434.78 | T25831 | T36807 |
250 | 1086.96/543.48 | T25832 | T36808 |
330 | 1434.78/717.39 | T25833 | T36809 |
8. 120V Primary - 440 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 6.82 | - | T36810 |
5 | 11.36 | - | T36811 |
7.5 | 17.05 | - | T36812 |
10 | 22.73 | T25837 | T36813 |
15 | 34.09 | T25838 | T36814 |
25 | 56.82 | T25839 | T36815 |
37.5 | 85.23 | T25840 | T36816 |
50 | 113.64 | T25841 | T36817 |
75 | 170.45 | T25842 | T36818 |
100 | 227.27 | T25843 | T36819 |
167 | 379.55 | T25844 | T36820 |
200 | 454.55 | T25845 | T36821 |
250 | 568.18 | T25846 | T36822 |
330 | 750 | T25847 | T36823 |
9. 120V Primary - 220/440 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.64/6.82 | - | T36824 |
5 | 22.73/11.36 | - | T36825 |
7.5 | 34.09/17.05 | - | T36826 |
10 | 45.45/22.73 | T25851 | T36827 |
15 | 68.18/34.09 | T25852 | T36828 |
25 | 113.64/56.82 | T25853 | T36829 |
37.5 | 170.45/85.23 | T25854 | T36830 |
50 | 227.27/113.64 | T25855 | T36831 |
75 | 340.91/170.45 | T25856 | T36832 |
100 | 454.55/227.27 | T25857 | T36833 |
167 | 759.09/379.55 | T25858 | T36834 |
200 | 909.09/454.55 | T25859 | T36835 |
250 | 1136.36/568.18 | T25860 | T36836 |
330 | 1500/750 | T25861 | T36837 |
10. 120V Primary - 416 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 7.21 | - | T36838 |
5 | 12.02 | - | T36839 |
7.5 | 18.03 | - | T36840 |
10 | 24.04 | T25865 | T36841 |
15 | 36.06 | T25866 | T36842 |
25 | 60.10 | T25867 | T36843 |
37.5 | 90.14 | T25868 | T36844 |
50 | 120.19 | T25869 | T36845 |
75 | 180.29 | T25870 | T36846 |
100 | 240.38 | T25871 | T36847 |
167 | 401.44 | T25872 | T36848 |
200 | 480.77 | T25873 | T36849 |
250 | 600.96 | T25874 | T36850 |
330 | 793.27 | T25875 | T36851 |
11. 120V Primary - 208/416 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 14.42/7.21 | - | T36852 |
5 | 24.04/12.02 | - | T36853 |
7.5 | 36.06/18.03 | - | T36854 |
10 | 48.08/24.04 | T25879 | T36855 |
15 | 72.12/36.06 | T25880 | T36856 |
25 | 120.19/60.1 | T25881 | T36857 |
37.5 | 180.29/90.14 | T25882 | T36858 |
50 | 240.38/120.19 | T25883 | T36859 |
75 | 360.58/180.29 | T25884 | T36860 |
100 | 480.77/240.38 | T25885 | T36861 |
167 | 802.88/401.44 | T25886 | T36862 |
200 | 961.54/480.77 | T25887 | T36863 |
250 | 1201.92/600.96 | T25888 | T36864 |
330 | 1586.54/793.27 | T25889 | T36865 |
12. 120V Primary - 400 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 7.5 | - | T36866 |
5 | 12.5 | - | T36867 |
7.5 | 18.75 | - | T36868 |
10 | 25 | T25893 | T36869 |
15 | 37.5 | T25894 | T36870 |
25 | 62.5 | T25895 | T36871 |
37.5 | 93.75 | T25896 | T36872 |
50 | 125 | T25897 | T36873 |
75 | 187.5 | T25898 | T36874 |
100 | 250 | T25899 | T36875 |
167 | 417.5 | T25900 | T36876 |
200 | 500 | T25901 | T36877 |
250 | 625 | T25902 | T36878 |
330 | 825 | T25903 | T36879 |
13. 120V Primary - 380 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 7.89 | - | T36880 |
5 | 13.16 | - | T36881 |
7.5 | 19.74 | - | T36882 |
10 | 26.32 | T25907 | T36883 |
15 | 39.47 | T25908 | T36884 |
25 | 65.79 | T25909 | T36885 |
37.5 | 98.68 | T25910 | T36886 |
50 | 131.58 | T25911 | T36887 |
75 | 197.37 | T25912 | T36888 |
100 | 263.16 | T25913 | T36889 |
167 | 439.47 | T25914 | T36890 |
200 | 526.32 | T25915 | T36891 |
250 | 657.89 | T25916 | T36892 |
330 | 868.42 | T25917 | T36893 |
14. 120V Primary - 347 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 8.65 | - | T36894 |
5 | 14.41 | - | T36895 |
7.5 | 21.61 | - | T36896 |
10 | 28.82 | T25921 | T36897 |
15 | 43.23 | T25922 | T36898 |
25 | 72.05 | T25923 | T36899 |
37.5 | 108.07 | T25924 | T36900 |
50 | 144.09 | T25925 | T36901 |
75 | 216.14 | T25926 | T36902 |
100 | 288.18 | T25927 | T36903 |
167 | 481.27 | T25928 | T36904 |
200 | 576.37 | T25929 | T36905 |
250 | 720.46 | T25930 | T36906 |
330 | 951.01 | T25931 | T36907 |
15. 120V Primary - 277 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 10.83 | - | T36908 |
5 | 18.05 | - | T36909 |
7.5 | 27.08 | - | T36910 |
10 | 36.10 | T25935 | T36911 |
15 | 54.15 | T25936 | T36912 |
25 | 90.25 | T25937 | T36913 |
37.5 | 135.38 | T25938 | T36914 |
50 | 180.51 | T25939 | T36915 |
75 | 270.76 | T25940 | T36916 |
100 | 361.01 | T25941 | T36917 |
167 | 602.89 | T25942 | T36918 |
200 | 722.02 | T25943 | T36919 |
250 | 902.53 | T25944 | T36920 |
330 | 1191.34 | T25945 | T36921 |
16. 120V Primary - 240 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 12.5 | - | T36922 |
5 | 20.83 | - | T36923 |
7.5 | 31.25 | - | T36924 |
10 | 41.67 | T25949 | T36925 |
15 | 62.5 | T25950 | T36926 |
25 | 104.17 | T25951 | T36927 |
37.5 | 156.25 | T25952 | T36928 |
50 | 208.33 | T25953 | T36929 |
75 | 312.5 | T25954 | T36930 |
100 | 416.67 | T25955 | T36931 |
167 | 695.83 | T25956 | T36932 |
200 | 833.33 | T25957 | T36933 |
250 | 1041.67 | T25958 | T36934 |
330 | 1375 | T25959 | T36935 |
17. 120V Primary - 120/240 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 25/12.5 | - | T36936 |
5 | 41.67/20.83 | - | T36937 |
7.5 | 62.5/31.25 | - | T36938 |
10 | 83.33/41.67 | T25963 | T36939 |
15 | 125/62.5 | T25964 | T36940 |
25 | 208.33/104.17 | T25965 | T36941 |
37.5 | 312.5/156.25 | T25966 | T36942 |
50 | 416.67/208.33 | T25967 | T36943 |
75 | 625/312.5 | T25968 | T36944 |
100 | 833.33/416.67 | T25969 | T36945 |
167 | 1391.67/695.83 | T25970 | T36946 |
200 | 1666.67/833.33 | T25971 | T36947 |
250 | 2083.33/1041.67 | T25972 | T36948 |
330 | 2750/1375 | T25973 | T36949 |
18. 120V Primary - 230 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.04 | - | T36950 |
5 | 21.74 | - | T36951 |
7.5 | 32.61 | - | T36952 |
10 | 43.48 | T25977 | T36953 |
15 | 65.22 | T25978 | T36954 |
25 | 108.70 | T25979 | T36955 |
37.5 | 163.04 | T25980 | T36956 |
50 | 217.39 | T25981 | T36957 |
75 | 326.09 | T25982 | T36958 |
100 | 434.78 | T25983 | T36959 |
167 | 726.09 | T25984 | T36960 |
200 | 869.57 | T25985 | T36961 |
250 | 1086.96 | T25986 | T36962 |
330 | 1434.78 | T25987 | T36963 |
19. 120V Primary - 115/230 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 26.09/13.04 | - | T36964 |
5 | 43.48/21.74 | - | T36965 |
7.5 | 65.22/32.61 | - | T36966 |
10 | 86.96/43.48 | T25991 | T36967 |
15 | 130.43/65.22 | T25992 | T36968 |
25 | 217.39/108.7 | T25993 | T36969 |
37.5 | 326.09/163.04 | T25994 | T36970 |
50 | 434.78/217.39 | T25995 | T36971 |
75 | 652.17/326.09 | T25996 | T36972 |
100 | 869.57/434.78 | T25997 | T36973 |
167 | 1452.17/726.09 | T25998 | T36974 |
200 | 1739.13/869.57 | T25999 | T36975 |
250 | 2173.91/1086.96 | T26000 | T36976 |
330 | 2869.57/1434.78 | T26001 | T36977 |
20. 120V Primary - 220 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.64 | - | T36978 |
5 | 22.73 | - | T36979 |
7.5 | 34.09 | - | T36980 |
10 | 45.45 | T26005 | T36981 |
15 | 68.18 | T26006 | T36982 |
25 | 113.64 | T26007 | T36983 |
37.5 | 170.45 | T26008 | T36984 |
50 | 227.27 | T26009 | T36985 |
75 | 340.91 | T26010 | T36986 |
100 | 454.55 | T26011 | T36987 |
167 | 759.09 | T26012 | T36988 |
200 | 909.09 | T26013 | T36989 |
250 | 1136.36 | T26014 | T36990 |
330 | 1500 | T26015 | T36991 |
21. 120V Primary - 110/220 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 27.27/13.64 | - | T36992 |
5 | 45.45/22.73 | - | T36993 |
7.5 | 68.18/34.09 | - | T36994 |
10 | 90.91/45.45 | T26019 | T36995 |
15 | 136.36/68.18 | T26020 | T36996 |
25 | 227.27/113.64 | T26021 | T36997 |
37.5 | 340.91/170.45 | T26022 | T36998 |
50 | 454.55/227.27 | T26023 | T36999 |
75 | 681.82/340.91 | T26024 | T37000 |
100 | 909.09/454.55 | T26025 | T37001 |
167 | 1518.18/759.09 | T26026 | T37002 |
200 | 1818.18/909.09 | T26027 | T37003 |
250 | 2272.73/1136.36 | T26028 | T37004 |
330 | 3000/1500 | T26029 | T37005 |
22. 120V Primary - 208 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 14.42 | - | T37006 |
5 | 24.04 | - | T37007 |
7.5 | 36.06 | - | T37008 |
10 | 48.08 | T26033 | T37009 |
15 | 72.12 | T26034 | T37010 |
25 | 120.19 | T26035 | T37011 |
37.5 | 180.29 | T26036 | T37012 |
50 | 240.38 | T26037 | T37013 |
75 | 360.58 | T26038 | T37014 |
100 | 480.77 | T26039 | T37015 |
167 | 802.88 | T26040 | T37016 |
200 | 961.54 | T26041 | T37017 |
250 | 1201.92 | T26042 | T37018 |
330 | 1586.54 | T26043 | T37019 |
23. 120V Primary - 200 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 15 | - | T37020 |
5 | 25 | - | T37021 |
7.5 | 37.5 | - | T37022 |
10 | 50 | T26047 | T37023 |
15 | 75 | T26048 | T37024 |
25 | 125 | T26049 | T37025 |
37.5 | 187.5 | T26050 | T37026 |
50 | 250 | T26051 | T37027 |
75 | 375 | T26052 | T37028 |
100 | 500 | T26053 | T37029 |
167 | 835 | T26054 | T37030 |
200 | 1000 | T26055 | T37031 |
250 | 1250 | T26056 | T37032 |
330 | 1650 | T26057 | T37033 |
24. 120V Primary - 190 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 15.79 | - | T37034 |
5 | 26.32 | - | T37035 |
7.5 | 39.47 | - | T37036 |
10 | 52.63 | T26061 | T37037 |
15 | 78.95 | T26062 | T37038 |
25 | 131.58 | T26063 | T37039 |
37.5 | 197.37 | T26064 | T37040 |
50 | 263.16 | T26065 | T37041 |
75 | 394.74 | T26066 | T37042 |
100 | 526.32 | T26067 | T37043 |
167 | 878.95 | T26068 | T37044 |
200 | 1052.63 | T26069 | T37045 |
250 | 1315.79 | T26070 | T37046 |
330 | 1736.84 | T26071 | T37047 |
25. 120V Primary - 120 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 25 | - | T37048 |
5 | 41.67 | - | T37049 |
7.5 | 62.5 | - | T37050 |
10 | 83.33 | T26075 | T37051 |
15 | 125 | T26076 | T37052 |
25 | 208.33 | T26077 | T37053 |
37.5 | 312.5 | T26078 | T37054 |
50 | 416.67 | T26079 | T37055 |
75 | 625 | T26080 | T37056 |
100 | 833.33 | T26081 | T37057 |
167 | 1391.67 | T26082 | T37058 |
200 | 1666.67 | T26083 | T37059 |
250 | 2083.33 | T26084 | T37060 |
330 | 2750 | T26085 | T37061 |
26. 120V Primary - 115 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 26.09 | - | T37062 |
5 | 43.48 | - | T37063 |
7.5 | 65.22 | - | T37064 |
10 | 86.96 | T26089 | T37065 |
15 | 130.43 | T26090 | T37066 |
25 | 217.39 | T26091 | T37067 |
37.5 | 326.09 | T26092 | T37068 |
50 | 434.78 | T26093 | T37069 |
75 | 652.17 | T26094 | T37070 |
100 | 869.57 | T26095 | T37071 |
167 | 1452.17 | T26096 | T37072 |
200 | 1739.13 | T26097 | T37073 |
250 | 2173.91 | T26098 | T37074 |
330 | 2869.57 | T26099 | T37075 |
27. 120V Primary - 110 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 27.27 | - | T37076 |
5 | 45.45 | - | T37077 |
7.5 | 68.18 | - | T37078 |
10 | 90.91 | T26103 | T37079 |
15 | 136.36 | T26104 | T37080 |
25 | 227.27 | T26105 | T37081 |
37.5 | 340.91 | T26106 | T37082 |
50 | 454.55 | T26107 | T37083 |
75 | 681.82 | T26108 | T37084 |
100 | 909.09 | T26109 | T37085 |
167 | 1518.18 | T26110 | T37086 |
200 | 1818.18 | T26111 | T37087 |
250 | 2272.73 | T26112 | T37088 |
330 | 3000 | T26113 | T37089 |
28. 120V Primary - 100 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 30 | - | T37090 |
5 | 50 | - | T37091 |
7.5 | 75 | - | T37092 |
10 | 100 | T26117 | T37093 |
15 | 150 | T26118 | T37094 |
25 | 250 | T26119 | T37095 |
37.5 | 375 | T26120 | T37096 |
50 | 500 | T26121 | T37097 |
75 | 750 | T26122 | T37098 |
100 | 1000 | T26123 | T37099 |
167 | 1670 | T26124 | T37100 |
200 | 2000 | T26125 | T37101 |
250 | 2500 | T26126 | T37102 |
330 | 3300 | T26127 | T37103 |