B. 575 Volt Primary Three Phase Isolation Transformers
TEMCo Three 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. 600Y/347 | 12. 230Y/133 |
| 2. 575Y/330 | 13. 220Y/127 |
| 3. 550Y/316 | 14. 216 Delta |
| 4. 480Y/277 | 15. 208Y/120 |
| 5. 460 Delta | 16. 200Y/115 |
| 6. 440 Delta | 17. 190Y/110 |
| 7. 416Y/240 | 18. 120 Delta |
| 8. 400Y/230 | 19. 115 Delta |
| 9. 380Y/220 | 20. 110 Delta |
| 10. 240Y/139 | 21. 100 Delta |
| 11. 240CTD/120 | |
1. 575V Primary - 600Y/347 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 2.89 | - | T43975 |
| 6 | 5.77 | - | T43976 |
| 9 | 8.66 | - | T43977 |
| 15 | 14.43 | T38872 | T43978 |
| 30 | 28.87 | T38873 | T43979 |
| 45 | 43.30 | T38874 | T43980 |
| 75 | 72.17 | T38875 | T43981 |
| 112.5 | 108.26 | T38876 | T43982 |
| 150 | 144.34 | T38877 | T43983 |
| 225 | 216.51 | T38878 | T43984 |
| 300 | 288.68 | T38879 | T43985 |
| 450 | 433.03 | T38880 | T43986 |
| 500 | 481.14 | T38881 | T43987 |
| 600 | 577.37 | T38882 | T43988 |
| 750 | 721.71 | T38883 | T43989 |
2. 575V Primary - 575Y/230 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.01 | - | T43990 |
| 6 | 6.02 | - | T43991 |
| 9 | 9.04 | - | T43992 |
| 15 | 15.06 | T38884 | T43993 |
| 30 | 30.12 | T38885 | T43994 |
| 45 | 45.19 | T38886 | T43995 |
| 75 | 75.31 | T38887 | T43996 |
| 112.5 | 112.96 | T38888 | T43997 |
| 150 | 150.62 | T38889 | T43998 |
| 225 | 225.93 | T38890 | T43999 |
| 300 | 301.24 | T38891 | T44000 |
| 450 | 451.85 | T38892 | T44001 |
| 500 | 502.06 | T38893 | T44002 |
| 600 | 602.47 | T38894 | T44003 |
| 750 | 753.09 | T38895 | T44004 |
3. 575V Primary - 550Y/316 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.15 | - | T44005 |
| 6 | 6.30 | - | T44006 |
| 9 | 9.45 | - | T44007 |
| 15 | 15.75 | T38896 | T44008 |
| 30 | 31.49 | T38897 | T44009 |
| 45 | 47.24 | T38898 | T44010 |
| 75 | 78.73 | T38899 | T44011 |
| 112.5 | 118.10 | T38900 | T44012 |
| 150 | 157.46 | T38901 | T44013 |
| 225 | 236.20 | T38902 | T44014 |
| 300 | 314.93 | T38903 | T44015 |
| 450 | 472.39 | T38904 | T44016 |
| 500 | 524.88 | T38905 | T44017 |
| 600 | 629.86 | T38906 | T44018 |
| 750 | 787.32 | T38907 | T44019 |
4. 575V Primary - 480Y/277 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.61 | - | T44020 |
| 6 | 7.22 | - | T44021 |
| 9 | 10.83 | - | T44022 |
| 15 | 18.04 | T38908 | T44023 |
| 30 | 36.09 | T38909 | T44024 |
| 45 | 54.13 | T38910 | T44025 |
| 75 | 90.21 | T38911 | T44026 |
| 112.5 | 135.32 | T38912 | T44027 |
| 150 | 180.43 | T38913 | T44028 |
| 225 | 270.64 | T38914 | T44029 |
| 300 | 360.85 | T38915 | T44030 |
| 450 | 541.28 | T38916 | T44031 |
| 500 | 601.42 | T38917 | T44032 |
| 600 | 721.71 | T38918 | T44033 |
| 750 | 902.14 | T38919 | T44034 |
5. 575V Primary - 460V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.77 | - | T44035 |
| 6 | 7.53 | - | T44036 |
| 9 | 11.30 | - | T44037 |
| 15 | 18.83 | T38920 | T44038 |
| 30 | 37.65 | T38921 | T44039 |
| 45 | 56.48 | T38922 | T44040 |
| 75 | 94.14 | T38923 | T44041 |
| 112.5 | 141.20 | T38924 | T44042 |
| 150 | 188.27 | T38925 | T44043 |
| 225 | 282.41 | T38926 | T44044 |
| 300 | 376.54 | T38927 | T44045 |
| 450 | 564.82 | T38928 | T44046 |
| 500 | 627.57 | T38929 | T44047 |
| 600 | 753.09 | T38930 | T44048 |
| 750 | 941.36 | T38931 | T44049 |
6. 575V Primary - 440V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 3.94 | - | T44050 |
| 6 | 7.87 | - | T44051 |
| 9 | 11.81 | - | T44052 |
| 15 | 19.68 | T38932 | T44053 |
| 30 | 39.37 | T38933 | T44054 |
| 45 | 59.05 | T38934 | T44055 |
| 75 | 98.41 | T38935 | T44056 |
| 112.5 | 147.62 | T38936 | T44057 |
| 150 | 196.83 | T38937 | T44058 |
| 225 | 295.24 | T38938 | T44059 |
| 300 | 393.66 | T38939 | T44060 |
| 450 | 590.49 | T38940 | T44061 |
| 500 | 656.10 | T38941 | T44062 |
| 600 | 787.32 | T38942 | T44063 |
| 750 | 984.15 | T38943 | T44064 |
7. 575V Primary - 416Y/240 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 4.16 | - | T44065 |
| 6 | 8.33 | - | T44066 |
| 9 | 12.49 | - | T44067 |
| 15 | 20.82 | T38944 | T44068 |
| 30 | 41.64 | T38945 | T44069 |
| 45 | 62.46 | T38946 | T44070 |
| 75 | 104.09 | T38947 | T44071 |
| 112.5 | 156.14 | T38948 | T44072 |
| 150 | 208.19 | T38949 | T44073 |
| 225 | 312.28 | T38950 | T44074 |
| 300 | 416.37 | T38951 | T44075 |
| 450 | 624.56 | T38952 | T44076 |
| 500 | 693.95 | T38953 | T44077 |
| 600 | 832.74 | T38954 | T44078 |
| 750 | 1040.93 | T38955 | T44079 |
8. 575V Primary - 400Y/230 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 4.33 | - | T44080 |
| 6 | 8.66 | - | T44081 |
| 9 | 12.99 | - | T44082 |
| 15 | 21.65 | T38956 | T44083 |
| 30 | 43.30 | T38957 | T44084 |
| 45 | 64.95 | T38958 | T44085 |
| 75 | 108.26 | T38959 | T44086 |
| 112.5 | 162.38 | T38960 | T44087 |
| 150 | 216.51 | T38961 | T44088 |
| 225 | 324.77 | T38962 | T44089 |
| 300 | 433.03 | T38963 | T44090 |
| 450 | 649.54 | T38964 | T44091 |
| 500 | 721.71 | T38965 | T44092 |
| 600 | 866.05 | T38966 | T44093 |
| 750 | 1082.56 | T38967 | T44094 |
9. 575V Primary - 380Y/220 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 4.56 | - | T44095 |
| 6 | 9.12 | - | T44096 |
| 9 | 13.67 | - | T44097 |
| 15 | 22.79 | T38968 | T44098 |
| 30 | 45.58 | T38969 | T44099 |
| 45 | 68.37 | T38970 | T44100 |
| 75 | 113.95 | T38971 | T44101 |
| 112.5 | 170.93 | T38972 | T44102 |
| 150 | 227.91 | T38973 | T44103 |
| 225 | 341.86 | T38974 | T44104 |
| 300 | 455.82 | T38975 | T44105 |
| 450 | 683.72 | T38976 | T44106 |
| 500 | 759.69 | T38977 | T44107 |
| 600 | 911.63 | T38978 | T44108 |
| 750 | 1139.54 | T38979 | T44109 |
10. 575V Primary - 240Y/139 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 7.22 | - | T44110 |
| 6 | 14.43 | - | T44111 |
| 9 | 21.65 | - | T44112 |
| 15 | 36.09 | T38980 | T44113 |
| 30 | 72.17 | T38981 | T44114 |
| 45 | 108.26 | T38982 | T44115 |
| 75 | 180.43 | T38983 | T44116 |
| 112.5 | 270.64 | T38984 | T44117 |
| 150 | 360.85 | T38985 | T44118 |
| 225 | 541.28 | T38986 | T44119 |
| 300 | 721.71 | T38987 | T44120 |
| 450 | 1082.56 | T38988 | T44121 |
| 500 | 1202.85 | T38989 | T44122 |
| 600 | 1443.42 | T38990 | T44123 |
| 750 | 1804.27 | T38991 | T44124 |
11. 575V Primary - 240CTD/120 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 7.22 | - | T44125 |
| 6 | 14.43 | - | T44126 |
| 9 | 21.65 | - | T44127 |
| 15 | 36.09 | T38992 | T44128 |
| 30 | 72.17 | T38993 | T44129 |
| 45 | 108.26 | T38994 | T44130 |
| 75 | 180.43 | T38995 | T44131 |
| 112.5 | 270.64 | T38996 | T44132 |
| 150 | 360.85 | T38997 | T44133 |
| 225 | 541.28 | T38998 | T44134 |
| 300 | 721.71 | T38999 | T44135 |
| 450 | 1082.56 | T39000 | T44136 |
| 500 | 1202.85 | T39001 | T44137 |
| 600 | 1443.42 | T39002 | T44138 |
| 750 | 1804.27 | T39003 | T44139 |
12. 575V Primary - 230Y/133 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 7.53 | - | T44140 |
| 6 | 15.06 | - | T44141 |
| 9 | 22.59 | - | T44142 |
| 15 | 37.65 | T39004 | T44143 |
| 30 | 75.31 | T39005 | T44144 |
| 45 | 112.96 | T39006 | T44145 |
| 75 | 188.27 | T39007 | T44146 |
| 112.5 | 282.41 | T39008 | T44147 |
| 150 | 376.54 | T39009 | T44148 |
| 225 | 564.82 | T39010 | T44149 |
| 300 | 753.09 | T39011 | T44150 |
| 450 | 1129.63 | T39012 | T44151 |
| 500 | 1255.15 | T39013 | T44152 |
| 600 | 1506.18 | T39014 | T44153 |
| 750 | 1882.72 | T39015 | T44154 |
13. 575V Primary - 220Y/127 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 7.87 | - | T44155 |
| 6 | 15.75 | - | T44156 |
| 9 | 23.62 | - | T44157 |
| 15 | 39.37 | T39016 | T44158 |
| 30 | 78.73 | T39017 | T44159 |
| 45 | 118.10 | T39018 | T44160 |
| 75 | 196.83 | T39019 | T44161 |
| 112.5 | 295.24 | T39020 | T44162 |
| 150 | 393.66 | T39021 | T44163 |
| 225 | 590.49 | T39022 | T44164 |
| 300 | 787.32 | T39023 | T44165 |
| 450 | 1180.98 | T39024 | T44166 |
| 500 | 1312.20 | T39025 | T44167 |
| 600 | 1574.64 | T39026 | T44168 |
| 750 | 1968.30 | T39027 | T44169 |
14. 575V Primary - 216V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 8.02 | - | T44170 |
| 6 | 16.04 | - | T44171 |
| 9 | 24.06 | - | T44172 |
| 15 | 40.09 | T39028 | T44173 |
| 30 | 80.19 | T39029 | T44174 |
| 45 | 120.28 | T39030 | T44175 |
| 75 | 200.47 | T39031 | T44176 |
| 112.5 | 300.71 | T39032 | T44177 |
| 150 | 400.95 | T39033 | T44178 |
| 225 | 601.42 | T39034 | T44179 |
| 300 | 801.90 | T39035 | T44180 |
| 450 | 1202.85 | T39036 | T44181 |
| 500 | 1336.50 | T39037 | T44182 |
| 600 | 1603.80 | T39038 | T44183 |
| 750 | 2004.75 | T39039 | T44184 |
15. 575V Primary - 208Y/120 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 8.33 | - | T44185 |
| 6 | 16.65 | - | T44186 |
| 9 | 24.98 | - | T44187 |
| 15 | 41.64 | T39040 | T44188 |
| 30 | 83.27 | T39041 | T44189 |
| 45 | 124.91 | T39042 | T44190 |
| 75 | 208.19 | T39043 | T44191 |
| 112.5 | 312.28 | T39044 | T44192 |
| 150 | 416.37 | T39045 | T44193 |
| 225 | 624.56 | T39046 | T44194 |
| 300 | 832.74 | T39047 | T44195 |
| 450 | 1249.11 | T39048 | T44196 |
| 500 | 1387.90 | T39049 | T44197 |
| 600 | 1665.48 | T39050 | T44198 |
| 750 | 2081.85 | T39051 | T44199 |
16. 575V Primary - 200Y/115 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 8.66 | - | T44200 |
| 6 | 17.32 | - | T44201 |
| 9 | 25.98 | - | T44202 |
| 15 | 43.30 | T39052 | T44203 |
| 30 | 86.61 | T39053 | T44204 |
| 45 | 129.91 | T39054 | T44205 |
| 75 | 216.51 | T39055 | T44206 |
| 112.5 | 324.77 | T39056 | T44207 |
| 150 | 433.03 | T39057 | T44208 |
| 225 | 649.54 | T39058 | T44209 |
| 300 | 866.05 | T39059 | T44210 |
| 450 | 1299.08 | T39060 | T44211 |
| 500 | 1443.42 | T39061 | T44212 |
| 600 | 1732.10 | T39062 | T44213 |
| 750 | 2165.13 | T39063 | T44214 |
17. 575V Primary - 190Y/110 Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 9.12 | - | T44215 |
| 6 | 18.23 | - | T44216 |
| 9 | 27.35 | - | T44217 |
| 15 | 45.58 | T39064 | T44218 |
| 30 | 91.16 | T39065 | T44219 |
| 45 | 136.74 | T39066 | T44220 |
| 75 | 227.91 | T39067 | T44221 |
| 112.5 | 341.86 | T39068 | T44222 |
| 150 | 455.82 | T39069 | T44223 |
| 225 | 683.72 | T39070 | T44224 |
| 300 | 911.63 | T39071 | T44225 |
| 450 | 1367.45 | T39072 | T44226 |
| 500 | 1519.39 | T39073 | T44227 |
| 600 | 1823.26 | T39074 | T44228 |
| 750 | 2279.08 | T39075 | T44229 |
18. 575V Primary - 120V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 14.43 | - | T44230 |
| 6 | 28.87 | - | T44231 |
| 9 | 43.30 | - | T44232 |
| 15 | 72.17 | T39076 | T44233 |
| 30 | 144.34 | T39077 | T44234 |
| 45 | 216.51 | T39078 | T44235 |
| 75 | 360.85 | T39079 | T44236 |
| 112.5 | 541.28 | T39080 | T44237 |
| 150 | 721.71 | T39081 | T44238 |
| 225 | 1082.56 | T39082 | T44239 |
| 300 | 1443.42 | T39083 | T44240 |
| 450 | 2165.13 | T39084 | T44241 |
| 500 | 2405.70 | T39085 | T44242 |
| 600 | 2886.84 | T39086 | T44243 |
| 750 | 3608.55 | T39087 | T44244 |
19. 575V Primary - 115V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 15.06 | - | T44245 |
| 6 | 30.12 | - | T44246 |
| 9 | 45.19 | - | T44247 |
| 15 | 75.31 | T39088 | T44248 |
| 30 | 150.62 | T39089 | T44249 |
| 45 | 225.93 | T39090 | T44250 |
| 75 | 376.54 | T39091 | T44251 |
| 112.5 | 564.82 | T39092 | T44252 |
| 150 | 753.09 | T39093 | T44253 |
| 225 | 1129.63 | T39094 | T44254 |
| 300 | 1506.18 | T39095 | T44255 |
| 450 | 2259.26 | T39096 | T44256 |
| 500 | 2510.29 | T39097 | T44257 |
| 600 | 3012.35 | T39098 | T44258 |
| 750 | 3765.44 | T39099 | T44259 |
20. 575V Primary - 110V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 15.75 | - | T44260 |
| 6 | 31.49 | - | T44261 |
| 9 | 47.24 | - | T44262 |
| 15 | 78.73 | T39100 | T44263 |
| 30 | 157.46 | T39101 | T44264 |
| 45 | 236.20 | T39102 | T44265 |
| 75 | 393.66 | T39103 | T44266 |
| 112.5 | 590.49 | T39104 | T44267 |
| 150 | 787.32 | T39105 | T44268 |
| 225 | 1180.98 | T39106 | T44269 |
| 300 | 1574.64 | T39107 | T44270 |
| 450 | 2361.96 | T39108 | T44271 |
| 500 | 2624.40 | T39109 | T44272 |
| 600 | 3149.28 | T39110 | T44273 |
| 750 | 3936.59 | T39111 | T44274 |
21. 575V Primary - 100V Delta Secondary
| kVA | Output Amps | Aluminum | Copper |
| 3 | 17.32 | - | T44275 |
| 6 | 34.64 | - | T44276 |
| 9 | 51.96 | - | T44277 |
| 15 | 86.61 | T39112 | T44278 |
| 30 | 173.21 | T39113 | T44279 |
| 45 | 259.82 | T39114 | T44280 |
| 75 | 433.03 | T39115 | T44281 |
| 112.5 | 649.54 | T39116 | T44282 |
| 150 | 866.05 | T39117 | T44283 |
| 225 | 1299.08 | T39118 | T44284 |
| 300 | 1732.10 | T39119 | T44285 |
| 450 | 2598.15 | T39120 | T44286 |
| 500 | 2886.84 | T39121 | T44287 |
| 600 | 3464.20 | T39122 | T44288 |
| 750 | 4330.25 | T39123 | T44289 |