240/480 Volt Primary Single Phase Isolation Transformers

E. 240/480 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. 240/480V Primary - 600 Secondary

kVA Output Amps Aluminum Copper
3 5 - T28872
5 8.33 - T28873
7.5 12.5 - T28874
10 16.67 T17899 T28875
15 25 T17900 T28876
25 41.67 T17901 T28877
37.5 62.5 T17902 T28878
50 83.33 T17903 T28879
75 125 T17904 T28880
100 166.67 T17905 T28881
167 278.33 T17906 T28882
200 333.33 T17907 T28883
250 416.67 T17908 T28884
330 550 T17909 T28885

2. 240/480V Primary - 575 Secondary

kVA Output Amps Aluminum Copper
3 5.22 - T28886
5 8.70 - T28887
7.5 13.04 - T28888
10 17.39 T17913 T28889
15 26.09 T17914 T28890
25 43.48 T17915 T28891
37.5 65.22 T17916 T28892
50 86.96 T17917 T28893
75 130.43 T17918 T28894
100 173.91 T17919 T28895
167 290.43 T17920 T28896
200 347.83 T17921 T28897
250 434.78 T17922 T28898
330 573.91 T17923 T28899

3. 240/480V Primary - 550 Secondary

kVA Output Amps Aluminum Copper
3 5.45 - T28900
5 9.09 - T28901
7.5 13.64 - T28902
10 18.18 T17927 T28903
15 27.27 T17928 T28904
25 45.45 T17929 T28905
37.5 68.18 T17930 T28906
50 90.91 T17931 T28907
75 136.36 T17932 T28908
100 181.82 T17933 T28909
167 303.64 T17934 T28910
200 363.64 T17935 T28911
250 454.55 T17936 T28912
330 600 T17937 T28913

4. 240/480V Primary - 480 Secondary

kVA Output Amps Aluminum Copper
3 6.25 - T28914
5 10.42 - T28915
7.5 15.63 - T28916
10 20.83 T17941 T28917
15 31.25 T17942 T28918
25 52.08 T17943 T28919
37.5 78.13 T17944 T28920
50 104.17 T17945 T28921
75 156.25 T17946 T28922
100 208.33 T17947 T28923
167 347.92 T17948 T28924
200 416.67 T17949 T28925
250 520.83 T17950 T28926
330 687.50 T17951 T28927

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

kVA Output Amps Aluminum Copper
3 12.5/6.25 - T28928
5 20.83/10.42 - T28929
7.5 31.25/15.63 - T28930
10 41.67/20.83 T17955 T28931
15 62.5/31.25 T17956 T28932
25 104.17/52.08 T17957 T28933
37.5 156.25/78.13 T17958 T28934
50 208.33/104.17 T17959 T28935
75 312.5/156.25 T17960 T28936
100 416.67/208.33 T17961 T28937
167 695.83/347.92 T17962 T28938
200 833.33/416.67 T17963 T28939
250 1041.67/520.83 T17964 T28940
330 1375/687.5 T17965 T28941

6. 240/480V Primary - 460 Secondary

kVA Output Amps Aluminum Copper
3 6.52 - T28942
5 10.87 - T28943
7.5 16.30 - T28944
10 21.74 T17969 T28945
15 32.61 T17970 T28946
25 54.35 T17971 T28947
37.5 81.52 T17972 T28948
50 108.70 T17973 T28949
75 163.04 T17974 T28950
100 217.39 T17975 T28951
167 363.04 T17976 T28952
200 434.78 T17977 T28953
250 543.48 T17978 T28954
330 717.39 T17979 T28955

7. 240/480V Primary - 230/460 Secondary

kVA Output Amps Aluminum Copper
3 13.04/6.52 - T28956
5 21.74/10.87 - T28957
7.5 32.61/16.3 - T28958
10 43.48/21.74 T17983 T28959
15 65.22/32.61 T17984 T28960
25 108.7/54.35 T17985 T28961
37.5 163.04/81.52 T17986 T28962
50 217.39/108.7 T17987 T28963
75 326.09/163.04 T17988 T28964
100 434.78/217.39 T17989 T28965
167 726.09/363.04 T17990 T28966
200 869.57/434.78 T17991 T28967
250 1086.96/543.48 T17992 T28968
330 1434.78/717.39 T17993 T28969

8. 240/480V Primary - 440 Secondary

kVA Output Amps Aluminum Copper
3 6.82 - T28970
5 11.36 - T28971
7.5 17.05 - T28972
10 22.73 T17997 T28973
15 34.09 T17998 T28974
25 56.82 T17999 T28975
37.5 85.23 T18000 T28976
50 113.64 T18001 T28977
75 170.45 T18002 T28978
100 227.27 T18003 T28979
167 379.55 T18004 T28980
200 454.55 T18005 T28981
250 568.18 T18006 T28982
330 750 T18007 T28983

9. 240/480V Primary - 220/440 Secondary

kVA Output Amps Aluminum Copper
3 13.64/6.82 - T28984
5 22.73/11.36 - T28985
7.5 34.09/17.05 - T28986
10 45.45/22.73 T18011 T28987
15 68.18/34.09 T18012 T28988
25 113.64/56.82 T18013 T28989
37.5 170.45/85.23 T18014 T28990
50 227.27/113.64 T18015 T28991
75 340.91/170.45 T18016 T28992
100 454.55/227.27 T18017 T28993
167 759.09/379.55 T18018 T28994
200 909.09/454.55 T18019 T28995
250 1136.36/568.18 T18020 T28996
330 1500/750 T18021 T28997

10. 240/480V Primary - 416 Secondary

kVA Output Amps Aluminum Copper
3 7.21 - T28998
5 12.02 - T28999
7.5 18.03 - T29000
10 24.04 T18025 T29001
15 36.06 T18026 T29002
25 60.10 T18027 T29003
37.5 90.14 T18028 T29004
50 120.19 T18029 T29005
75 180.29 T18030 T29006
100 240.38 T18031 T29007
167 401.44 T18032 T29008
200 480.77 T18033 T29009
250 600.96 T18034 T29010
330 793.27 T18035 T29011

11. 240/480V Primary - 208/416 Secondary

kVA Output Amps Aluminum Copper
3 14.42/7.21 - T29012
5 24.04/12.02 - T29013
7.5 36.06/18.03 - T29014
10 48.08/24.04 T18039 T29015
15 72.12/36.06 T18040 T29016
25 120.19/60.1 T18041 T29017
37.5 180.29/90.14 T18042 T29018
50 240.38/120.19 T18043 T29019
75 360.58/180.29 T18044 T29020
100 480.77/240.38 T18045 T29021
167 802.88/401.44 T18046 T29022
200 961.54/480.77 T18047 T29023
250 1201.92/600.96 T18048 T29024
330 1586.54/793.27 T18049 T29025

12. 240/480V Primary - 400 Secondary

kVA Output Amps Aluminum Copper
3 7.5 - T29026
5 12.5 - T29027
7.5 18.75 - T29028
10 25 T18053 T29029
15 37.5 T18054 T29030
25 62.5 T18055 T29031
37.5 93.75 T18056 T29032
50 125 T18057 T29033
75 187.5 T18058 T29034
100 250 T18059 T29035
167 417.5 T18060 T29036
200 500 T18061 T29037
250 625 T18062 T29038
330 825 T18063 T29039

13. 240/480V Primary - 380 Secondary

kVA Output Amps Aluminum Copper
3 7.89 - T29040
5 13.16 - T29041
7.5 19.74 - T29042
10 26.32 T18067 T29043
15 39.47 T18068 T29044
25 65.79 T18069 T29045
37.5 98.68 T18070 T29046
50 131.58 T18071 T29047
75 197.37 T18072 T29048
100 263.16 T18073 T29049
167 439.47 T18074 T29050
200 526.32 T18075 T29051
250 657.89 T18076 T29052
330 868.42 T18077 T29053

14. 240/480V Primary - 347 Secondary

kVA Output Amps Aluminum Copper
3 8.65 - T29054
5 14.41 - T29055
7.5 21.61 - T29056
10 28.82 T18081 T29057
15 43.23 T18082 T29058
25 72.05 T18083 T29059
37.5 108.07 T18084 T29060
50 144.09 T18085 T29061
75 216.14 T18086 T29062
100 288.18 T18087 T29063
167 481.27 T18088 T29064
200 576.37 T18089 T29065
250 720.46 T18090 T29066
330 951.01 T18091 T29067

15. 240/480V Primary - 277 Secondary

kVA Output Amps Aluminum Copper
3 10.83 - T29068
5 18.05 - T29069
7.5 27.08 - T29070
10 36.10 T18095 T29071
15 54.15 T18096 T29072
25 90.25 T18097 T29073
37.5 135.38 T18098 T29074
50 180.51 T18099 T29075
75 270.76 T18100 T29076
100 361.01 T18101 T29077
167 602.89 T18102 T29078
200 722.02 T18103 T29079
250 902.53 T18104 T29080
330 1191.34 T18105 T29081

16. 240/480V Primary - 240 Secondary

kVA Output Amps Aluminum Copper
3 12.5 - T29082
5 20.83 - T29083
7.5 31.25 - T29084
10 41.67 T18109 T29085
15 62.5 T18110 T29086
25 104.17 T18111 T29087
37.5 156.25 T18112 T29088
50 208.33 T18113 T29089
75 312.5 T18114 T29090
100 416.67 T18115 T29091
167 695.83 T18116 T29092
200 833.33 T18117 T29093
250 1041.67 T18118 T29094
330 1375 T18119 T29095

17. 240/480V Primary - 120/240 Secondary

kVA Output Amps Aluminum Copper
3 25/12.5 - T29096
5 41.67/20.83 - T29097
7.5 62.5/31.25 - T29098
10 83.33/41.67 T18123 T29099
15 125/62.5 T18124 T29100
25 208.33/104.17 T18125 T29101
37.5 312.5/156.25 T18126 T29102
50 416.67/208.33 T18127 T29103
75 625/312.5 T18128 T29104
100 833.33/416.67 T18129 T29105
167 1391.67/695.83 T18130 T29106
200 1666.67/833.33 T18131 T29107
250 2083.33/1041.67 T18132 T29108
330 2750/1375 T18133 T29109

18. 240/480V Primary - 230 Secondary

kVA Output Amps Aluminum Copper
3 13.04 - T29110
5 21.74 - T29111
7.5 32.61 - T29112
10 43.48 T18137 T29113
15 65.22 T18138 T29114
25 108.70 T18139 T29115
37.5 163.04 T18140 T29116
50 217.39 T18141 T29117
75 326.09 T18142 T29118
100 434.78 T18143 T29119
167 726.09 T18144 T29120
200 869.57 T18145 T29121
250 1086.96 T18146 T29122
330 1434.78 T18147 T29123

19. 240/480V Primary - 115/230 Secondary

kVA Output Amps Aluminum Copper
3 26.09/13.04 - T29124
5 43.48/21.74 - T29125
7.5 65.22/32.61 - T29126
10 86.96/43.48 T18151 T29127
15 130.43/65.22 T18152 T29128
25 217.39/108.7 T18153 T29129
37.5 326.09/163.04 T18154 T29130
50 434.78/217.39 T18155 T29131
75 652.17/326.09 T18156 T29132
100 869.57/434.78 T18157 T29133
167 1452.17/726.09 T18158 T29134
200 1739.13/869.57 T18159 T29135
250 2173.91/1086.96 T18160 T29136
330 2869.57/1434.78 T18161 T29137

20. 240/480V Primary - 220 Secondary

kVA Output Amps Aluminum Copper
3 13.64 - T29138
5 22.73 - T29139
7.5 34.09 - T29140
10 45.45 T18165 T29141
15 68.18 T18166 T29142
25 113.64 T18167 T29143
37.5 170.45 T18168 T29144
50 227.27 T18169 T29145
75 340.91 T18170 T29146
100 454.55 T18171 T29147
167 759.09 T18172 T29148
200 909.09 T18173 T29149
250 1136.36 T18174 T29150
330 1500 T18175 T29151

21. 240/480V Primary - 110/220 Secondary

kVA Output Amps Aluminum Copper
3 27.27/13.64 - T29152
5 45.45/22.73 - T29153
7.5 68.18/34.09 - T29154
10 90.91/45.45 T18179 T29155
15 136.36/68.18 T18180 T29156
25 227.27/113.64 T18181 T29157
37.5 340.91/170.45 T18182 T29158
50 454.55/227.27 T18183 T29159
75 681.82/340.91 T18184 T29160
100 909.09/454.55 T18185 T29161
167 1518.18/759.09 T18186 T29162
200 1818.18/909.09 T18187 T29163
250 2272.73/1136.36 T18188 T29164
330 3000/1500 T18189 T29165

22. 240/480V Primary - 208 Secondary

kVA Output Amps Aluminum Copper
3 14.42 - T29166
5 24.04 - T29167
7.5 36.06 - T29168
10 48.08 T18193 T29169
15 72.12 T18194 T29170
25 120.19 T18195 T29171
37.5 180.29 T18196 T29172
50 240.38 T18197 T29173
75 360.58 T18198 T29174
100 480.77 T18199 T29175
167 802.88 T18200 T29176
200 961.54 T18201 T29177
250 1201.92 T18202 T29178
330 1586.54 T18203 T29179

23. 240/480V Primary - 200 Secondary

kVA Output Amps Aluminum Copper
3 15 - T29180
5 25 - T29181
7.5 37.5 - T29182
10 50 T18207 T29183
15 75 T18208 T29184
25 125 T18209 T29185
37.5 187.5 T18210 T29186
50 250 T18211 T29187
75 375 T18212 T29188
100 500 T18213 T29189
167 835 T18214 T29190
200 1000 T18215 T29191
250 1250 T18216 T29192
330 1650 T18217 T29193

24. 240/480V Primary - 190 Secondary

kVA Output Amps Aluminum Copper
3 15.79 - T29194
5 26.32 - T29195
7.5 39.47 - T29196
10 52.63 T18221 T29197
15 78.95 T18222 T29198
25 131.58 T18223 T29199
37.5 197.37 T18224 T29200
50 263.16 T18225 T29201
75 394.74 T18226 T29202
100 526.32 T18227 T29203
167 878.95 T18228 T29204
200 1052.63 T18229 T29205
250 1315.79 T18230 T29206
330 1736.84 T18231 T29207

25. 240/480V Primary - 120 Secondary

kVA Output Amps Aluminum Copper
3 25 - T29208
5 41.67 - T29209
7.5 62.5 - T29210
10 83.33 T18235 T29211
15 125 T18236 T29212
25 208.33 T18237 T29213
37.5 312.5 T18238 T29214
50 416.67 T18239 T29215
75 625 T18240 T29216
100 833.33 T18241 T29217
167 1391.67 T18242 T29218
200 1666.67 T18243 T29219
250 2083.33 T18244 T29220
330 2750 T18245 T29221

26. 240/480V Primary - 115 Secondary

kVA Output Amps Aluminum Copper
3 26.09 - T29222
5 43.48 - T29223
7.5 65.22 - T29224
10 86.96 T18249 T29225
15 130.43 T18250 T29226
25 217.39 T18251 T29227
37.5 326.09 T18252 T29228
50 434.78 T18253 T29229
75 652.17 T18254 T29230
100 869.57 T18255 T29231
167 1452.17 T18256 T29232
200 1739.13 T18257 T29233
250 2173.91 T18258 T29234
330 2869.57 T18259 T29235

27. 240/480V Primary - 110 Secondary

kVA Output Amps Aluminum Copper
3 27.27 - T29236
5 45.45 - T29237
7.5 68.18 - T29238
10 90.91 T18263 T29239
15 136.36 T18264 T29240
25 227.27 T18265 T29241
37.5 340.91 T18266 T29242
50 454.55 T18267 T29243
75 681.82 T18268 T29244
100 909.09 T18269 T29245
167 1518.18 T18270 T29246
200 1818.18 T18271 T29247
250 2272.73 T18272 T29248
330 3000 T18273 T29249

28. 240/480V Primary - 100 Secondary

kVA Output Amps Aluminum Copper
3 30 - T29250
5 50 - T29251
7.5 75 - T29252
10 100 T18277 T29253
15 150 T18278 T29254
25 250 T18279 T29255
37.5 375 T18280 T29256
50 500 T18281 T29257
75 750 T18282 T29258
100 1000 T18283 T29259
167 1670 T18284 T29260
200 2000 T18285 T29261
250 2500 T18286 T29262
330 3300 T18287 T29263