120/240 Volt Primary Single Phase Isolation Transformers

Q. 120/240 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. 120/240V Primary - 600 Secondary

kVA Output Amps Aluminum Copper
3 5 - T33576
5 8.33 - T33577
7.5 12.5 - T33578
10 16.67 T22603 T33579
15 25 T22604 T33580
25 41.67 T22605 T33581
37.5 62.5 T22606 T33582
50 83.33 T22607 T33583
75 125 T22608 T33584
100 166.67 T22609 T33585
167 278.33 T22610 T33586
200 333.33 T22611 T33587
250 416.67 T22612 T33588
330 550 T22613 T33589

2. 120/240V Primary - 575 Secondary

kVA Output Amps Aluminum Copper
3 5.22 - T33590
5 8.70 - T33591
7.5 13.04 - T33592
10 17.39 T22617 T33593
15 26.09 T22618 T33594
25 43.48 T22619 T33595
37.5 65.22 T22620 T33596
50 86.96 T22621 T33597
75 130.43 T22622 T33598
100 173.91 T22623 T33599
167 290.43 T22624 T33600
200 347.83 T22625 T33601
250 434.78 T22626 T33602
330 573.91 T22627 T33603

3. 120/240V Primary - 550 Secondary

kVA Output Amps Aluminum Copper
3 5.45 - T33604
5 9.09 - T33605
7.5 13.64 - T33606
10 18.18 T22631 T33607
15 27.27 T22632 T33608
25 45.45 T22633 T33609
37.5 68.18 T22634 T33610
50 90.91 T22635 T33611
75 136.36 T22636 T33612
100 181.82 T22637 T33613
167 303.64 T22638 T33614
200 363.64 T22639 T33615
250 454.55 T22640 T33616
330 600 T22641 T33617

4. 120/240V Primary - 480 Secondary

kVA Output Amps Aluminum Copper
3 6.25 - T33618
5 10.42 - T33619
7.5 15.63 - T33620
10 20.83 T22645 T33621
15 31.25 T22646 T33622
25 52.08 T22647 T33623
37.5 78.13 T22648 T33624
50 104.17 T22649 T33625
75 156.25 T22650 T33626
100 208.33 T22651 T33627
167 347.92 T22652 T33628
200 416.67 T22653 T33629
250 520.83 T22654 T33630
330 687.50 T22655 T33631

5. 120/240V Primary - 240/480 Secondary

kVA Output Amps Aluminum Copper
3 12.5/6.25 - T33632
5 20.83/10.42 - T33633
7.5 31.25/15.63 - T33634
10 41.67/20.83 T22659 T33635
15 62.5/31.25 T22660 T33636
25 104.17/52.08 T22661 T33637
37.5 156.25/78.13 T22662 T33638
50 208.33/104.17 T22663 T33639
75 312.5/156.25 T22664 T33640
100 416.67/208.33 T22665 T33641
167 695.83/347.92 T22666 T33642
200 833.33/416.67 T22667 T33643
250 1041.67/520.83 T22668 T33644
330 1375/687.5 T22669 T33645

6. 120/240V Primary - 460 Secondary

kVA Output Amps Aluminum Copper
3 6.52 - T33646
5 10.87 - T33647
7.5 16.30 - T33648
10 21.74 T22673 T33649
15 32.61 T22674 T33650
25 54.35 T22675 T33651
37.5 81.52 T22676 T33652
50 108.70 T22677 T33653
75 163.04 T22678 T33654
100 217.39 T22679 T33655
167 363.04 T22680 T33656
200 434.78 T22681 T33657
250 543.48 T22682 T33658
330 717.39 T22683 T33659

7. 120/240V Primary - 230/460 Secondary

kVA Output Amps Aluminum Copper
3 13.04/6.52 - T33660
5 21.74/10.87 - T33661
7.5 32.61/16.3 - T33662
10 43.48/21.74 T22687 T33663
15 65.22/32.61 T22688 T33664
25 108.7/54.35 T22689 T33665
37.5 163.04/81.52 T22690 T33666
50 217.39/108.7 T22691 T33667
75 326.09/163.04 T22692 T33668
100 434.78/217.39 T22693 T33669
167 726.09/363.04 T22694 T33670
200 869.57/434.78 T22695 T33671
250 1086.96/543.48 T22696 T33672
330 1434.78/717.39 T22697 T33673

8. 120/240V Primary - 440 Secondary

kVA Output Amps Aluminum Copper
3 6.82 - T33674
5 11.36 - T33675
7.5 17.05 - T33676
10 22.73 T22701 T33677
15 34.09 T22702 T33678
25 56.82 T22703 T33679
37.5 85.23 T22704 T33680
50 113.64 T22705 T33681
75 170.45 T22706 T33682
100 227.27 T22707 T33683
167 379.55 T22708 T33684
200 454.55 T22709 T33685
250 568.18 T22710 T33686
330 750 T22711 T33687

9. 120/240V Primary - 220/440 Secondary

kVA Output Amps Aluminum Copper
3 13.64/6.82 - T33688
5 22.73/11.36 - T33689
7.5 34.09/17.05 - T33690
10 45.45/22.73 T22715 T33691
15 68.18/34.09 T22716 T33692
25 113.64/56.82 T22717 T33693
37.5 170.45/85.23 T22718 T33694
50 227.27/113.64 T22719 T33695
75 340.91/170.45 T22720 T33696
100 454.55/227.27 T22721 T33697
167 759.09/379.55 T22722 T33698
200 909.09/454.55 T22723 T33699
250 1136.36/568.18 T22724 T33700
330 1500/750 T22725 T33701

10. 120/240V Primary - 416 Secondary

kVA Output Amps Aluminum Copper
3 7.21 - T33702
5 12.02 - T33703
7.5 18.03 - T33704
10 24.04 T22729 T33705
15 36.06 T22730 T33706
25 60.10 T22731 T33707
37.5 90.14 T22732 T33708
50 120.19 T22733 T33709
75 180.29 T22734 T33710
100 240.38 T22735 T33711
167 401.44 T22736 T33712
200 480.77 T22737 T33713
250 600.96 T22738 T33714
330 793.27 T22739 T33715

11. 120/240V Primary - 208/416 Secondary

kVA Output Amps Aluminum Copper
3 14.42/7.21 - T33716
5 24.04/12.02 - T33717
7.5 36.06/18.03 - T33718
10 48.08/24.04 T22743 T33719
15 72.12/36.06 T22744 T33720
25 120.19/60.1 T22745 T33721
37.5 180.29/90.14 T22746 T33722
50 240.38/120.19 T22747 T33723
75 360.58/180.29 T22748 T33724
100 480.77/240.38 T22749 T33725
167 802.88/401.44 T22750 T33726
200 961.54/480.77 T22751 T33727
250 1201.92/600.96 T22752 T33728
330 1586.54/793.27 T22753 T33729

12. 120/240V Primary - 400 Secondary

kVA Output Amps Aluminum Copper
3 7.5 - T33730
5 12.5 - T33731
7.5 18.75 - T33732
10 25 T22757 T33733
15 37.5 T22758 T33734
25 62.5 T22759 T33735
37.5 93.75 T22760 T33736
50 125 T22761 T33737
75 187.5 T22762 T33738
100 250 T22763 T33739
167 417.5 T22764 T33740
200 500 T22765 T33741
250 625 T22766 T33742
330 825 T22767 T33743

13. 120/240V Primary - 380 Secondary

kVA Output Amps Aluminum Copper
3 7.89 - T33744
5 13.16 - T33745
7.5 19.74 - T33746
10 26.32 T22771 T33747
15 39.47 T22772 T33748
25 65.79 T22773 T33749
37.5 98.68 T22774 T33750
50 131.58 T22775 T33751
75 197.37 T22776 T33752
100 263.16 T22777 T33753
167 439.47 T22778 T33754
200 526.32 T22779 T33755
250 657.89 T22780 T33756
330 868.42 T22781 T33757

14. 120/240V Primary - 347 Secondary

kVA Output Amps Aluminum Copper
3 8.65 - T33758
5 14.41 - T33759
7.5 21.61 - T33760
10 28.82 T22785 T33761
15 43.23 T22786 T33762
25 72.05 T22787 T33763
37.5 108.07 T22788 T33764
50 144.09 T22789 T33765
75 216.14 T22790 T33766
100 288.18 T22791 T33767
167 481.27 T22792 T33768
200 576.37 T22793 T33769
250 720.46 T22794 T33770
330 951.01 T22795 T33771

15. 120/240V Primary - 277 Secondary

kVA Output Amps Aluminum Copper
3 10.83 - T33772
5 18.05 - T33773
7.5 27.08 - T33774
10 36.10 T22799 T33775
15 54.15 T22800 T33776
25 90.25 T22801 T33777
37.5 135.38 T22802 T33778
50 180.51 T22803 T33779
75 270.76 T22804 T33780
100 361.01 T22805 T33781
167 602.89 T22806 T33782
200 722.02 T22807 T33783
250 902.53 T22808 T33784
330 1191.34 T22809 T33785

16. 120/240V Primary - 240 Secondary

kVA Output Amps Aluminum Copper
3 12.5 - T33786
5 20.83 - T33787
7.5 31.25 - T33788
10 41.67 T22813 T33789
15 62.5 T22814 T33790
25 104.17 T22815 T33791
37.5 156.25 T22816 T33792
50 208.33 T22817 T33793
75 312.5 T22818 T33794
100 416.67 T22819 T33795
167 695.83 T22820 T33796
200 833.33 T22821 T33797
250 1041.67 T22822 T33798
330 1375 T22823 T33799

17. 120/240V Primary - 120/240 Secondary

kVA Output Amps Aluminum Copper
3 25/12.5 - T33800
5 41.67/20.83 - T33801
7.5 62.5/31.25 - T33802
10 83.33/41.67 T22827 T33803
15 125/62.5 T22828 T33804
25 208.33/104.17 T22829 T33805
37.5 312.5/156.25 T22830 T33806
50 416.67/208.33 T22831 T33807
75 625/312.5 T22832 T33808
100 833.33/416.67 T22833 T33809
167 1391.67/695.83 T22834 T33810
200 1666.67/833.33 T22835 T33811
250 2083.33/1041.67 T22836 T33812
330 2750/1375 T22837 T33813

18. 120/240V Primary - 230 Secondary

kVA Output Amps Aluminum Copper
3 13.04 - T33814
5 21.74 - T33815
7.5 32.61 - T33816
10 43.48 T22841 T33817
15 65.22 T22842 T33818
25 108.70 T22843 T33819
37.5 163.04 T22844 T33820
50 217.39 T22845 T33821
75 326.09 T22846 T33822
100 434.78 T22847 T33823
167 726.09 T22848 T33824
200 869.57 T22849 T33825
250 1086.96 T22850 T33826
330 1434.78 T22851 T33827

19. 120/240V Primary - 115/230 Secondary

kVA Output Amps Aluminum Copper
3 26.09/13.04 - T33828
5 43.48/21.74 - T33829
7.5 65.22/32.61 - T33830
10 86.96/43.48 T22855 T33831
15 130.43/65.22 T22856 T33832
25 217.39/108.7 T22857 T33833
37.5 326.09/163.04 T22858 T33834
50 434.78/217.39 T22859 T33835
75 652.17/326.09 T22860 T33836
100 869.57/434.78 T22861 T33837
167 1452.17/726.09 T22862 T33838
200 1739.13/869.57 T22863 T33839
250 2173.91/1086.96 T22864 T33840
330 2869.57/1434.78 T22865 T33841

20. 120/240V Primary - 220 Secondary

kVA Output Amps Aluminum Copper
3 13.64 - T33842
5 22.73 - T33843
7.5 34.09 - T33844
10 45.45 T22869 T33845
15 68.18 T22870 T33846
25 113.64 T22871 T33847
37.5 170.45 T22872 T33848
50 227.27 T22873 T33849
75 340.91 T22874 T33850
100 454.55 T22875 T33851
167 759.09 T22876 T33852
200 909.09 T22877 T33853
250 1136.36 T22878 T33854
330 1500 T22879 T33855

21. 120/240V Primary - 110/220 Secondary

kVA Output Amps Aluminum Copper
3 27.27/13.64 - T33856
5 45.45/22.73 - T33857
7.5 68.18/34.09 - T33858
10 90.91/45.45 T22883 T33859
15 136.36/68.18 T22884 T33860
25 227.27/113.64 T22885 T33861
37.5 340.91/170.45 T22886 T33862
50 454.55/227.27 T22887 T33863
75 681.82/340.91 T22888 T33864
100 909.09/454.55 T22889 T33865
167 1518.18/759.09 T22890 T33866
200 1818.18/909.09 T22891 T33867
250 2272.73/1136.36 T22892 T33868
330 3000/1500 T22893 T33869

22. 120/240V Primary - 208 Secondary

kVA Output Amps Aluminum Copper
3 14.42 - T33870
5 24.04 - T33871
7.5 36.06 - T33872
10 48.08 T22897 T33873
15 72.12 T22898 T33874
25 120.19 T22899 T33875
37.5 180.29 T22900 T33876
50 240.38 T22901 T33877
75 360.58 T22902 T33878
100 480.77 T22903 T33879
167 802.88 T22904 T33880
200 961.54 T22905 T33881
250 1201.92 T22906 T33882
330 1586.54 T22907 T33883

23. 120/240V Primary - 200 Secondary

kVA Output Amps Aluminum Copper
3 15 - T33884
5 25 - T33885
7.5 37.5 - T33886
10 50 T22911 T33887
15 75 T22912 T33888
25 125 T22913 T33889
37.5 187.5 T22914 T33890
50 250 T22915 T33891
75 375 T22916 T33892
100 500 T22917 T33893
167 835 T22918 T33894
200 1000 T22919 T33895
250 1250 T22920 T33896
330 1650 T22921 T33897

24. 120/240V Primary - 190 Secondary

kVA Output Amps Aluminum Copper
3 15.79 - T33898
5 26.32 - T33899
7.5 39.47 - T33900
10 52.63 T22925 T33901
15 78.95 T22926 T33902
25 131.58 T22927 T33903
37.5 197.37 T22928 T33904
50 263.16 T22929 T33905
75 394.74 T22930 T33906
100 526.32 T22931 T33907
167 878.95 T22932 T33908
200 1052.63 T22933 T33909
250 1315.79 T22934 T33910
330 1736.84 T22935 T33911

25. 120/240V Primary - 120 Secondary

kVA Output Amps Aluminum Copper
3 25 - T33912
5 41.67 - T33913
7.5 62.5 - T33914
10 83.33 T22939 T33915
15 125 T22940 T33916
25 208.33 T22941 T33917
37.5 312.5 T22942 T33918
50 416.67 T22943 T33919
75 625 T22944 T33920
100 833.33 T22945 T33921
167 1391.67 T22946 T33922
200 1666.67 T22947 T33923
250 2083.33 T22948 T33924
330 2750 T22949 T33925

26. 120/240V Primary - 115 Secondary

kVA Output Amps Aluminum Copper
3 26.09 - T33926
5 43.48 - T33927
7.5 65.22 - T33928
10 86.96 T22953 T33929
15 130.43 T22954 T33930
25 217.39 T22955 T33931
37.5 326.09 T22956 T33932
50 434.78 T22957 T33933
75 652.17 T22958 T33934
100 869.57 T22959 T33935
167 1452.17 T22960 T33936
200 1739.13 T22961 T33937
250 2173.91 T22962 T33938
330 2869.57 T22963 T33939

27. 120/240V Primary - 110 Secondary

kVA Output Amps Aluminum Copper
3 27.27 - T33940
5 45.45 - T33941
7.5 68.18 - T33942
10 90.91 T22967 T33943
15 136.36 T22968 T33944
25 227.27 T22969 T33945
37.5 340.91 T22970 T33946
50 454.55 T22971 T33947
75 681.82 T22972 T33948
100 909.09 T22973 T33949
167 1518.18 T22974 T33950
200 1818.18 T22975 T33951
250 2272.73 T22976 T33952
330 3000 T22977 T33953

28. 120/240V Primary - 100 Secondary

kVA Output Amps Aluminum Copper
3 30 - T33954
5 50 - T33955
7.5 75 - T33956
10 100 T22981 T33957
15 150 T22982 T33958
25 250 T22983 T33959
37.5 375 T22984 T33960
50 500 T22985 T33961
75 750 T22986 T33962
100 1000 T22987 T33963
167 1670 T22988 T33964
200 2000 T22989 T33965
250 2500 T22990 T33966
330 3300 T22991 T33967