400 Volt Primary Single Phase Isolation Transformers

L. 400 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.

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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. 400V Primary - 600 Secondary

kVA Output Amps Aluminum Copper
3 5 - T31616
5 8.33 - T31617
7.5 12.5 - T31618
10 16.67 T20643 T31619
15 25 T20644 T31620
25 41.67 T20645 T31621
37.5 62.5 T20646 T31622
50 83.33 T20647 T31623
75 125 T20648 T31624
100 166.67 T20649 T31625
167 278.33 T20650 T31626
200 333.33 T20651 T31627
250 416.67 T20652 T31628
330 550 T20653 T31629

2. 400V Primary - 575 Secondary

kVA Output Amps Aluminum Copper
3 5.22 - T31630
5 8.70 - T31631
7.5 13.04 - T31632
10 17.39 T20657 T31633
15 26.09 T20658 T31634
25 43.48 T20659 T31635
37.5 65.22 T20660 T31636
50 86.96 T20661 T31637
75 130.43 T20662 T31638
100 173.91 T20663 T31639
167 290.43 T20664 T31640
200 347.83 T20665 T31641
250 434.78 T20666 T31642
330 573.91 T20667 T31643

3. 400V Primary - 550 Secondary

kVA Output Amps Aluminum Copper
3 5.45 - T31644
5 9.09 - T31645
7.5 13.64 - T31646
10 18.18 T20671 T31647
15 27.27 T20672 T31648
25 45.45 T20673 T31649
37.5 68.18 T20674 T31650
50 90.91 T20675 T31651
75 136.36 T20676 T31652
100 181.82 T20677 T31653
167 303.64 T20678 T31654
200 363.64 T20679 T31655
250 454.55 T20680 T31656
330 600 T20681 T31657

4. 400V Primary - 480 Secondary

kVA Output Amps Aluminum Copper
3 6.25 - T31658
5 10.42 - T31659
7.5 15.63 - T31660
10 20.83 T20685 T31661
15 31.25 T20686 T31662
25 52.08 T20687 T31663
37.5 78.13 T20688 T31664
50 104.17 T20689 T31665
75 156.25 T20690 T31666
100 208.33 T20691 T31667
167 347.92 T20692 T31668
200 416.67 T20693 T31669
250 520.83 T20694 T31670
330 687.50 T20695 T31671

5. 400V Primary - 240/480 Secondary

kVA Output Amps Aluminum Copper
3 12.5/6.25 - T31672
5 20.83/10.42 - T31673
7.5 31.25/15.63 - T31674
10 41.67/20.83 T20699 T31675
15 62.5/31.25 T20700 T31676
25 104.17/52.08 T20701 T31677
37.5 156.25/78.13 T20702 T31678
50 208.33/104.17 T20703 T31679
75 312.5/156.25 T20704 T31680
100 416.67/208.33 T20705 T31681
167 695.83/347.92 T20706 T31682
200 833.33/416.67 T20707 T31683
250 1041.67/520.83 T20708 T31684
330 1375/687.5 T20709 T31685

6. 400V Primary - 460 Secondary

kVA Output Amps Aluminum Copper
3 6.52 - T31686
5 10.87 - T31687
7.5 16.30 - T31688
10 21.74 T20713 T31689
15 32.61 T20714 T31690
25 54.35 T20715 T31691
37.5 81.52 T20716 T31692
50 108.70 T20717 T31693
75 163.04 T20718 T31694
100 217.39 T20719 T31695
167 363.04 T20720 T31696
200 434.78 T20721 T31697
250 543.48 T20722 T31698
330 717.39 T20723 T31699

7. 400V Primary - 230/460 Secondary

kVA Output Amps Aluminum Copper
3 13.04/6.52 - T31700
5 21.74/10.87 - T31701
7.5 32.61/16.3 - T31702
10 43.48/21.74 T20727 T31703
15 65.22/32.61 T20728 T31704
25 108.7/54.35 T20729 T31705
37.5 163.04/81.52 T20730 T31706
50 217.39/108.7 T20731 T31707
75 326.09/163.04 T20732 T31708
100 434.78/217.39 T20733 T31709
167 726.09/363.04 T20734 T31710
200 869.57/434.78 T20735 T31711
250 1086.96/543.48 T20736 T31712
330 1434.78/717.39 T20737 T31713

8. 400V Primary - 440 Secondary

kVA Output Amps Aluminum Copper
3 6.82 - T31714
5 11.36 - T31715
7.5 17.05 - T31716
10 22.73 T20741 T31717
15 34.09 T20742 T31718
25 56.82 T20743 T31719
37.5 85.23 T20744 T31720
50 113.64 T20745 T31721
75 170.45 T20746 T31722
100 227.27 T20747 T31723
167 379.55 T20748 T31724
200 454.55 T20749 T31725
250 568.18 T20750 T31726
330 750 T20751 T31727

9. 400V Primary - 220/440 Secondary

kVA Output Amps Aluminum Copper
3 13.64/6.82 - T31728
5 22.73/11.36 - T31729
7.5 34.09/17.05 - T31730
10 45.45/22.73 T20755 T31731
15 68.18/34.09 T20756 T31732
25 113.64/56.82 T20757 T31733
37.5 170.45/85.23 T20758 T31734
50 227.27/113.64 T20759 T31735
75 340.91/170.45 T20760 T31736
100 454.55/227.27 T20761 T31737
167 759.09/379.55 T20762 T31738
200 909.09/454.55 T20763 T31739
250 1136.36/568.18 T20764 T31740
330 1500/750 T20765 T31741

10. 400V Primary - 416 Secondary

kVA Output Amps Aluminum Copper
3 7.21 - T31742
5 12.02 - T31743
7.5 18.03 - T31744
10 24.04 T20769 T31745
15 36.06 T20770 T31746
25 60.10 T20771 T31747
37.5 90.14 T20772 T31748
50 120.19 T20773 T31749
75 180.29 T20774 T31750
100 240.38 T20775 T31751
167 401.44 T20776 T31752
200 480.77 T20777 T31753
250 600.96 T20778 T31754
330 793.27 T20779 T31755

11. 400V Primary - 208/416 Secondary

kVA Output Amps Aluminum Copper
3 14.42/7.21 - T31756
5 24.04/12.02 - T31757
7.5 36.06/18.03 - T31758
10 48.08/24.04 T20783 T31759
15 72.12/36.06 T20784 T31760
25 120.19/60.1 T20785 T31761
37.5 180.29/90.14 T20786 T31762
50 240.38/120.19 T20787 T31763
75 360.58/180.29 T20788 T31764
100 480.77/240.38 T20789 T31765
167 802.88/401.44 T20790 T31766
200 961.54/480.77 T20791 T31767
250 1201.92/600.96 T20792 T31768
330 1586.54/793.27 T20793 T31769

12. 400V Primary - 400 Secondary

kVA Output Amps Aluminum Copper
3 7.5 - T31770
5 12.5 - T31771
7.5 18.75 - T31772
10 25 T20797 T31773
15 37.5 T20798 T31774
25 62.5 T20799 T31775
37.5 93.75 T20800 T31776
50 125 T20801 T31777
75 187.5 T20802 T31778
100 250 T20803 T31779
167 417.5 T20804 T31780
200 500 T20805 T31781
250 625 T20806 T31782
330 825 T20807 T31783

13. 400V Primary - 380 Secondary

kVA Output Amps Aluminum Copper
3 7.89 - T31784
5 13.16 - T31785
7.5 19.74 - T31786
10 26.32 T20811 T31787
15 39.47 T20812 T31788
25 65.79 T20813 T31789
37.5 98.68 T20814 T31790
50 131.58 T20815 T31791
75 197.37 T20816 T31792
100 263.16 T20817 T31793
167 439.47 T20818 T31794
200 526.32 T20819 T31795
250 657.89 T20820 T31796
330 868.42 T20821 T31797

14. 400V Primary - 347 Secondary

kVA Output Amps Aluminum Copper
3 8.65 - T31798
5 14.41 - T31799
7.5 21.61 - T31800
10 28.82 T20825 T31801
15 43.23 T20826 T31802
25 72.05 T20827 T31803
37.5 108.07 T20828 T31804
50 144.09 T20829 T31805
75 216.14 T20830 T31806
100 288.18 T20831 T31807
167 481.27 T20832 T31808
200 576.37 T20833 T31809
250 720.46 T20834 T31810
330 951.01 T20835 T31811

15. 400V Primary - 277 Secondary

kVA Output Amps Aluminum Copper
3 10.83 - T31812
5 18.05 - T31813
7.5 27.08 - T31814
10 36.10 T20839 T31815
15 54.15 T20840 T31816
25 90.25 T20841 T31817
37.5 135.38 T20842 T31818
50 180.51 T20843 T31819
75 270.76 T20844 T31820
100 361.01 T20845 T31821
167 602.89 T20846 T31822
200 722.02 T20847 T31823
250 902.53 T20848 T31824
330 1191.34 T20849 T31825

16. 400V Primary - 240 Secondary

kVA Output Amps Aluminum Copper
3 12.5 - T31826
5 20.83 - T31827
7.5 31.25 - T31828
10 41.67 T20853 T31829
15 62.5 T20854 T31830
25 104.17 T20855 T31831
37.5 156.25 T20856 T31832
50 208.33 T20857 T31833
75 312.5 T20858 T31834
100 416.67 T20859 T31835
167 695.83 T20860 T31836
200 833.33 T20861 T31837
250 1041.67 T20862 T31838
330 1375 T20863 T31839

17. 400V Primary - 120/240 Secondary

kVA Output Amps Aluminum Copper
3 25/12.5 - T31840
5 41.67/20.83 - T31841
7.5 62.5/31.25 - T31842
10 83.33/41.67 T20867 T31843
15 125/62.5 T20868 T31844
25 208.33/104.17 T20869 T31845
37.5 312.5/156.25 T20870 T31846
50 416.67/208.33 T20871 T31847
75 625/312.5 T20872 T31848
100 833.33/416.67 T20873 T31849
167 1391.67/695.83 T20874 T31850
200 1666.67/833.33 T20875 T31851
250 2083.33/1041.67 T20876 T31852
330 2750/1375 T20877 T31853

18. 400V Primary - 230 Secondary

kVA Output Amps Aluminum Copper
3 13.04 - T31854
5 21.74 - T31855
7.5 32.61 - T31856
10 43.48 T20881 T31857
15 65.22 T20882 T31858
25 108.70 T20883 T31859
37.5 163.04 T20884 T31860
50 217.39 T20885 T31861
75 326.09 T20886 T31862
100 434.78 T20887 T31863
167 726.09 T20888 T31864
200 869.57 T20889 T31865
250 1086.96 T20890 T31866
330 1434.78 T20891 T31867

19. 400V Primary - 115/230 Secondary

kVA Output Amps Aluminum Copper
3 26.09/13.04 - T31868
5 43.48/21.74 - T31869
7.5 65.22/32.61 - T31870
10 86.96/43.48 T20895 T31871
15 130.43/65.22 T20896 T31872
25 217.39/108.7 T20897 T31873
37.5 326.09/163.04 T20898 T31874
50 434.78/217.39 T20899 T31875
75 652.17/326.09 T20900 T31876
100 869.57/434.78 T20901 T31877
167 1452.17/726.09 T20902 T31878
200 1739.13/869.57 T20903 T31879
250 2173.91/1086.96 T20904 T31880
330 2869.57/1434.78 T20905 T31881

20. 400V Primary - 220 Secondary

kVA Output Amps Aluminum Copper
3 13.64 - T31882
5 22.73 - T31883
7.5 34.09 - T31884
10 45.45 T20909 T31885
15 68.18 T20910 T31886
25 113.64 T20911 T31887
37.5 170.45 T20912 T31888
50 227.27 T20913 T31889
75 340.91 T20914 T31890
100 454.55 T20915 T31891
167 759.09 T20916 T31892
200 909.09 T20917 T31893
250 1136.36 T20918 T31894
330 1500 T20919 T31895

21. 400V Primary - 110/220 Secondary

kVA Output Amps Aluminum Copper
3 27.27/13.64 - T31896
5 45.45/22.73 - T31897
7.5 68.18/34.09 - T31898
10 90.91/45.45 T20923 T31899
15 136.36/68.18 T20924 T31900
25 227.27/113.64 T20925 T31901
37.5 340.91/170.45 T20926 T31902
50 454.55/227.27 T20927 T31903
75 681.82/340.91 T20928 T31904
100 909.09/454.55 T20929 T31905
167 1518.18/759.09 T20930 T31906
200 1818.18/909.09 T20931 T31907
250 2272.73/1136.36 T20932 T31908
330 3000/1500 T20933 T31909

22. 400V Primary - 208 Secondary

kVA Output Amps Aluminum Copper
3 14.42 - T31910
5 24.04 - T31911
7.5 36.06 - T31912
10 48.08 T20937 T31913
15 72.12 T20938 T31914
25 120.19 T20939 T31915
37.5 180.29 T20940 T31916
50 240.38 T20941 T31917
75 360.58 T20942 T31918
100 480.77 T20943 T31919
167 802.88 T20944 T31920
200 961.54 T20945 T31921
250 1201.92 T20946 T31922
330 1586.54 T20947 T31923

23. 400V Primary - 200 Secondary

kVA Output Amps Aluminum Copper
3 15 - T31924
5 25 - T31925
7.5 37.5 - T31926
10 50 T20951 T31927
15 75 T20952 T31928
25 125 T20953 T31929
37.5 187.5 T20954 T31930
50 250 T20955 T31931
75 375 T20956 T31932
100 500 T20957 T31933
167 835 T20958 T31934
200 1000 T20959 T31935
250 1250 T20960 T31936
330 1650 T20961 T31937

24. 400V Primary - 190 Secondary

kVA Output Amps Aluminum Copper
3 15.79 - T31938
5 26.32 - T31939
7.5 39.47 - T31940
10 52.63 T20965 T31941
15 78.95 T20966 T31942
25 131.58 T20967 T31943
37.5 197.37 T20968 T31944
50 263.16 T20969 T31945
75 394.74 T20970 T31946
100 526.32 T20971 T31947
167 878.95 T20972 T31948
200 1052.63 T20973 T31949
250 1315.79 T20974 T31950
330 1736.84 T20975 T31951

25. 400V Primary - 120 Secondary

kVA Output Amps Aluminum Copper
3 25 - T31952
5 41.67 - T31953
7.5 62.5 - T31954
10 83.33 T20979 T31955
15 125 T20980 T31956
25 208.33 T20981 T31957
37.5 312.5 T20982 T31958
50 416.67 T20983 T31959
75 625 T20984 T31960
100 833.33 T20985 T31961
167 1391.67 T20986 T31962
200 1666.67 T20987 T31963
250 2083.33 T20988 T31964
330 2750 T20989 T31965

26. 400V Primary - 115 Secondary

kVA Output Amps Aluminum Copper
3 26.09 - T31966
5 43.48 - T31967
7.5 65.22 - T31968
10 86.96 T20993 T31969
15 130.43 T20994 T31970
25 217.39 T20995 T31971
37.5 326.09 T20996 T31972
50 434.78 T20997 T31973
75 652.17 T20998 T31974
100 869.57 T20999 T31975
167 1452.17 T21000 T31976
200 1739.13 T21001 T31977
250 2173.91 T21002 T31978
330 2869.57 T21003 T31979

27. 400V Primary - 110 Secondary

kVA Output Amps Aluminum Copper
3 27.27 - T31980
5 45.45 - T31981
7.5 68.18 - T31982
10 90.91 T21007 T31983
15 136.36 T21008 T31984
25 227.27 T21009 T31985
37.5 340.91 T21010 T31986
50 454.55 T21011 T31987
75 681.82 T21012 T31988
100 909.09 T21013 T31989
167 1518.18 T21014 T31990
200 1818.18 T21015 T31991
250 2272.73 T21016 T31992
330 3000 T21017 T31993

28. 400V Primary - 100 Secondary

kVA Output Amps Aluminum Copper
3 30 - T31994
5 50 - T31995
7.5 75 - T31996
10 100 T21021 T31997
15 150 T21022 T31998
25 250 T21023 T31999
37.5 375 T21024 T32000
50 500 T21025 T32001
75 750 T21026 T32002
100 1000 T21027 T32003
167 1670 T21028 T32004
200 2000 T21029 T32005
250 2500 T21030 T32006
330 3300 T21031 T32007