120 Volt Primary Single Phase Isolation Transformers

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