R. 230 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. 230V Primary - 600 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 5 | - | T33968 |
5 | 8.33 | - | T33969 |
7.5 | 12.5 | - | T33970 |
10 | 16.67 | T22995 | T33971 |
15 | 25 | T22996 | T33972 |
25 | 41.67 | T22997 | T33973 |
37.5 | 62.5 | T22998 | T33974 |
50 | 83.33 | T22999 | T33975 |
75 | 125 | T23000 | T33976 |
100 | 166.67 | T23001 | T33977 |
167 | 278.33 | T23002 | T33978 |
200 | 333.33 | T23003 | T33979 |
250 | 416.67 | T23004 | T33980 |
330 | 550 | T23005 | T33981 |
2. 230V Primary - 575 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 5.22 | - | T33982 |
5 | 8.70 | - | T33983 |
7.5 | 13.04 | - | T33984 |
10 | 17.39 | T23009 | T33985 |
15 | 26.09 | T23010 | T33986 |
25 | 43.48 | T23011 | T33987 |
37.5 | 65.22 | T23012 | T33988 |
50 | 86.96 | T23013 | T33989 |
75 | 130.43 | T23014 | T33990 |
100 | 173.91 | T23015 | T33991 |
167 | 290.43 | T23016 | T33992 |
200 | 347.83 | T23017 | T33993 |
250 | 434.78 | T23018 | T33994 |
330 | 573.91 | T23019 | T33995 |
3. 230V Primary - 550 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 5.45 | - | T33996 |
5 | 9.09 | - | T33997 |
7.5 | 13.64 | - | T33998 |
10 | 18.18 | T23023 | T33999 |
15 | 27.27 | T23024 | T34000 |
25 | 45.45 | T23025 | T34001 |
37.5 | 68.18 | T23026 | T34002 |
50 | 90.91 | T23027 | T34003 |
75 | 136.36 | T23028 | T34004 |
100 | 181.82 | T23029 | T34005 |
167 | 303.64 | T23030 | T34006 |
200 | 363.64 | T23031 | T34007 |
250 | 454.55 | T23032 | T34008 |
330 | 600 | T23033 | T34009 |
4. 230V Primary - 480 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 6.25 | - | T34010 |
5 | 10.42 | - | T34011 |
7.5 | 15.63 | - | T34012 |
10 | 20.83 | T23037 | T34013 |
15 | 31.25 | T23038 | T34014 |
25 | 52.08 | T23039 | T34015 |
37.5 | 78.13 | T23040 | T34016 |
50 | 104.17 | T23041 | T34017 |
75 | 156.25 | T23042 | T34018 |
100 | 208.33 | T23043 | T34019 |
167 | 347.92 | T23044 | T34020 |
200 | 416.67 | T23045 | T34021 |
250 | 520.83 | T23046 | T34022 |
330 | 687.50 | T23047 | T34023 |
5. 230V Primary - 240/480 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 12.5/6.25 | - | T34024 |
5 | 20.83/10.42 | - | T34025 |
7.5 | 31.25/15.63 | - | T34026 |
10 | 41.67/20.83 | T23051 | T34027 |
15 | 62.5/31.25 | T23052 | T34028 |
25 | 104.17/52.08 | T23053 | T34029 |
37.5 | 156.25/78.13 | T23054 | T34030 |
50 | 208.33/104.17 | T23055 | T34031 |
75 | 312.5/156.25 | T23056 | T34032 |
100 | 416.67/208.33 | T23057 | T34033 |
167 | 695.83/347.92 | T23058 | T34034 |
200 | 833.33/416.67 | T23059 | T34035 |
250 | 1041.67/520.83 | T23060 | T34036 |
330 | 1375/687.5 | T23061 | T34037 |
6. 230V Primary - 460 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 6.52 | - | T34038 |
5 | 10.87 | - | T34039 |
7.5 | 16.30 | - | T34040 |
10 | 21.74 | T23065 | T34041 |
15 | 32.61 | T23066 | T34042 |
25 | 54.35 | T23067 | T34043 |
37.5 | 81.52 | T23068 | T34044 |
50 | 108.70 | T23069 | T34045 |
75 | 163.04 | T23070 | T34046 |
100 | 217.39 | T23071 | T34047 |
167 | 363.04 | T23072 | T34048 |
200 | 434.78 | T23073 | T34049 |
250 | 543.48 | T23074 | T34050 |
330 | 717.39 | T23075 | T34051 |
7. 230V Primary - 230/460 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.04/6.52 | - | T34052 |
5 | 21.74/10.87 | - | T34053 |
7.5 | 32.61/16.3 | - | T34054 |
10 | 43.48/21.74 | T23079 | T34055 |
15 | 65.22/32.61 | T23080 | T34056 |
25 | 108.7/54.35 | T23081 | T34057 |
37.5 | 163.04/81.52 | T23082 | T34058 |
50 | 217.39/108.7 | T23083 | T34059 |
75 | 326.09/163.04 | T23084 | T34060 |
100 | 434.78/217.39 | T23085 | T34061 |
167 | 726.09/363.04 | T23086 | T34062 |
200 | 869.57/434.78 | T23087 | T34063 |
250 | 1086.96/543.48 | T23088 | T34064 |
330 | 1434.78/717.39 | T23089 | T34065 |
8. 230V Primary - 440 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 6.82 | - | T34066 |
5 | 11.36 | - | T34067 |
7.5 | 17.05 | - | T34068 |
10 | 22.73 | T23093 | T34069 |
15 | 34.09 | T23094 | T34070 |
25 | 56.82 | T23095 | T34071 |
37.5 | 85.23 | T23096 | T34072 |
50 | 113.64 | T23097 | T34073 |
75 | 170.45 | T23098 | T34074 |
100 | 227.27 | T23099 | T34075 |
167 | 379.55 | T23100 | T34076 |
200 | 454.55 | T23101 | T34077 |
250 | 568.18 | T23102 | T34078 |
330 | 750 | T23103 | T34079 |
9. 230V Primary - 220/440 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.64/6.82 | - | T34080 |
5 | 22.73/11.36 | - | T34081 |
7.5 | 34.09/17.05 | - | T34082 |
10 | 45.45/22.73 | T23107 | T34083 |
15 | 68.18/34.09 | T23108 | T34084 |
25 | 113.64/56.82 | T23109 | T34085 |
37.5 | 170.45/85.23 | T23110 | T34086 |
50 | 227.27/113.64 | T23111 | T34087 |
75 | 340.91/170.45 | T23112 | T34088 |
100 | 454.55/227.27 | T23113 | T34089 |
167 | 759.09/379.55 | T23114 | T34090 |
200 | 909.09/454.55 | T23115 | T34091 |
250 | 1136.36/568.18 | T23116 | T34092 |
330 | 1500/750 | T23117 | T34093 |
10. 230V Primary - 416 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 7.21 | - | T34094 |
5 | 12.02 | - | T34095 |
7.5 | 18.03 | - | T34096 |
10 | 24.04 | T23121 | T34097 |
15 | 36.06 | T23122 | T34098 |
25 | 60.10 | T23123 | T34099 |
37.5 | 90.14 | T23124 | T34100 |
50 | 120.19 | T23125 | T34101 |
75 | 180.29 | T23126 | T34102 |
100 | 240.38 | T23127 | T34103 |
167 | 401.44 | T23128 | T34104 |
200 | 480.77 | T23129 | T34105 |
250 | 600.96 | T23130 | T34106 |
330 | 793.27 | T23131 | T34107 |
11. 230V Primary - 208/416 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 14.42/7.21 | - | T34108 |
5 | 24.04/12.02 | - | T34109 |
7.5 | 36.06/18.03 | - | T34110 |
10 | 48.08/24.04 | T23135 | T34111 |
15 | 72.12/36.06 | T23136 | T34112 |
25 | 120.19/60.1 | T23137 | T34113 |
37.5 | 180.29/90.14 | T23138 | T34114 |
50 | 240.38/120.19 | T23139 | T34115 |
75 | 360.58/180.29 | T23140 | T34116 |
100 | 480.77/240.38 | T23141 | T34117 |
167 | 802.88/401.44 | T23142 | T34118 |
200 | 961.54/480.77 | T23143 | T34119 |
250 | 1201.92/600.96 | T23144 | T34120 |
330 | 1586.54/793.27 | T23145 | T34121 |
12. 230V Primary - 400 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 7.5 | - | T34122 |
5 | 12.5 | - | T34123 |
7.5 | 18.75 | - | T34124 |
10 | 25 | T23149 | T34125 |
15 | 37.5 | T23150 | T34126 |
25 | 62.5 | T23151 | T34127 |
37.5 | 93.75 | T23152 | T34128 |
50 | 125 | T23153 | T34129 |
75 | 187.5 | T23154 | T34130 |
100 | 250 | T23155 | T34131 |
167 | 417.5 | T23156 | T34132 |
200 | 500 | T23157 | T34133 |
250 | 625 | T23158 | T34134 |
330 | 825 | T23159 | T34135 |
13. 230V Primary - 380 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 7.89 | - | T34136 |
5 | 13.16 | - | T34137 |
7.5 | 19.74 | - | T34138 |
10 | 26.32 | T23163 | T34139 |
15 | 39.47 | T23164 | T34140 |
25 | 65.79 | T23165 | T34141 |
37.5 | 98.68 | T23166 | T34142 |
50 | 131.58 | T23167 | T34143 |
75 | 197.37 | T23168 | T34144 |
100 | 263.16 | T23169 | T34145 |
167 | 439.47 | T23170 | T34146 |
200 | 526.32 | T23171 | T34147 |
250 | 657.89 | T23172 | T34148 |
330 | 868.42 | T23173 | T34149 |
14. 230V Primary - 347 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 8.65 | - | T34150 |
5 | 14.41 | - | T34151 |
7.5 | 21.61 | - | T34152 |
10 | 28.82 | T23177 | T34153 |
15 | 43.23 | T23178 | T34154 |
25 | 72.05 | T23179 | T34155 |
37.5 | 108.07 | T23180 | T34156 |
50 | 144.09 | T23181 | T34157 |
75 | 216.14 | T23182 | T34158 |
100 | 288.18 | T23183 | T34159 |
167 | 481.27 | T23184 | T34160 |
200 | 576.37 | T23185 | T34161 |
250 | 720.46 | T23186 | T34162 |
330 | 951.01 | T23187 | T34163 |
15. 230V Primary - 277 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 10.83 | - | T34164 |
5 | 18.05 | - | T34165 |
7.5 | 27.08 | - | T34166 |
10 | 36.10 | T23191 | T34167 |
15 | 54.15 | T23192 | T34168 |
25 | 90.25 | T23193 | T34169 |
37.5 | 135.38 | T23194 | T34170 |
50 | 180.51 | T23195 | T34171 |
75 | 270.76 | T23196 | T34172 |
100 | 361.01 | T23197 | T34173 |
167 | 602.89 | T23198 | T34174 |
200 | 722.02 | T23199 | T34175 |
250 | 902.53 | T23200 | T34176 |
330 | 1191.34 | T23201 | T34177 |
16. 230V Primary - 240 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 12.5 | - | T34178 |
5 | 20.83 | - | T34179 |
7.5 | 31.25 | - | T34180 |
10 | 41.67 | T23205 | T34181 |
15 | 62.5 | T23206 | T34182 |
25 | 104.17 | T23207 | T34183 |
37.5 | 156.25 | T23208 | T34184 |
50 | 208.33 | T23209 | T34185 |
75 | 312.5 | T23210 | T34186 |
100 | 416.67 | T23211 | T34187 |
167 | 695.83 | T23212 | T34188 |
200 | 833.33 | T23213 | T34189 |
250 | 1041.67 | T23214 | T34190 |
330 | 1375 | T23215 | T34191 |
17. 230V Primary - 120/240 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 25/12.5 | - | T34192 |
5 | 41.67/20.83 | - | T34193 |
7.5 | 62.5/31.25 | - | T34194 |
10 | 83.33/41.67 | T23219 | T34195 |
15 | 125/62.5 | T23220 | T34196 |
25 | 208.33/104.17 | T23221 | T34197 |
37.5 | 312.5/156.25 | T23222 | T34198 |
50 | 416.67/208.33 | T23223 | T34199 |
75 | 625/312.5 | T23224 | T34200 |
100 | 833.33/416.67 | T23225 | T34201 |
167 | 1391.67/695.83 | T23226 | T34202 |
200 | 1666.67/833.33 | T23227 | T34203 |
250 | 2083.33/1041.67 | T23228 | T34204 |
330 | 2750/1375 | T23229 | T34205 |
18. 230V Primary - 230 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.04 | - | T34206 |
5 | 21.74 | - | T34207 |
7.5 | 32.61 | - | T34208 |
10 | 43.48 | T23233 | T34209 |
15 | 65.22 | T23234 | T34210 |
25 | 108.70 | T23235 | T34211 |
37.5 | 163.04 | T23236 | T34212 |
50 | 217.39 | T23237 | T34213 |
75 | 326.09 | T23238 | T34214 |
100 | 434.78 | T23239 | T34215 |
167 | 726.09 | T23240 | T34216 |
200 | 869.57 | T23241 | T34217 |
250 | 1086.96 | T23242 | T34218 |
330 | 1434.78 | T23243 | T34219 |
19. 230V Primary - 115/230 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 26.09/13.04 | - | T34220 |
5 | 43.48/21.74 | - | T34221 |
7.5 | 65.22/32.61 | - | T34222 |
10 | 86.96/43.48 | T23247 | T34223 |
15 | 130.43/65.22 | T23248 | T34224 |
25 | 217.39/108.7 | T23249 | T34225 |
37.5 | 326.09/163.04 | T23250 | T34226 |
50 | 434.78/217.39 | T23251 | T34227 |
75 | 652.17/326.09 | T23252 | T34228 |
100 | 869.57/434.78 | T23253 | T34229 |
167 | 1452.17/726.09 | T23254 | T34230 |
200 | 1739.13/869.57 | T23255 | T34231 |
250 | 2173.91/1086.96 | T23256 | T34232 |
330 | 2869.57/1434.78 | T23257 | T34233 |
20. 230V Primary - 220 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 13.64 | - | T34234 |
5 | 22.73 | - | T34235 |
7.5 | 34.09 | - | T34236 |
10 | 45.45 | T23261 | T34237 |
15 | 68.18 | T23262 | T34238 |
25 | 113.64 | T23263 | T34239 |
37.5 | 170.45 | T23264 | T34240 |
50 | 227.27 | T23265 | T34241 |
75 | 340.91 | T23266 | T34242 |
100 | 454.55 | T23267 | T34243 |
167 | 759.09 | T23268 | T34244 |
200 | 909.09 | T23269 | T34245 |
250 | 1136.36 | T23270 | T34246 |
330 | 1500 | T23271 | T34247 |
21. 230V Primary - 110/220 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 27.27/13.64 | - | T34248 |
5 | 45.45/22.73 | - | T34249 |
7.5 | 68.18/34.09 | - | T34250 |
10 | 90.91/45.45 | T23275 | T34251 |
15 | 136.36/68.18 | T23276 | T34252 |
25 | 227.27/113.64 | T23277 | T34253 |
37.5 | 340.91/170.45 | T23278 | T34254 |
50 | 454.55/227.27 | T23279 | T34255 |
75 | 681.82/340.91 | T23280 | T34256 |
100 | 909.09/454.55 | T23281 | T34257 |
167 | 1518.18/759.09 | T23282 | T34258 |
200 | 1818.18/909.09 | T23283 | T34259 |
250 | 2272.73/1136.36 | T23284 | T34260 |
330 | 3000/1500 | T23285 | T34261 |
22. 230V Primary - 208 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 14.42 | - | T34262 |
5 | 24.04 | - | T34263 |
7.5 | 36.06 | - | T34264 |
10 | 48.08 | T23289 | T34265 |
15 | 72.12 | T23290 | T34266 |
25 | 120.19 | T23291 | T34267 |
37.5 | 180.29 | T23292 | T34268 |
50 | 240.38 | T23293 | T34269 |
75 | 360.58 | T23294 | T34270 |
100 | 480.77 | T23295 | T34271 |
167 | 802.88 | T23296 | T34272 |
200 | 961.54 | T23297 | T34273 |
250 | 1201.92 | T23298 | T34274 |
330 | 1586.54 | T23299 | T34275 |
23. 230V Primary - 200 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 15 | - | T34276 |
5 | 25 | - | T34277 |
7.5 | 37.5 | - | T34278 |
10 | 50 | T23303 | T34279 |
15 | 75 | T23304 | T34280 |
25 | 125 | T23305 | T34281 |
37.5 | 187.5 | T23306 | T34282 |
50 | 250 | T23307 | T34283 |
75 | 375 | T23308 | T34284 |
100 | 500 | T23309 | T34285 |
167 | 835 | T23310 | T34286 |
200 | 1000 | T23311 | T34287 |
250 | 1250 | T23312 | T34288 |
330 | 1650 | T23313 | T34289 |
24. 230V Primary - 190 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 15.79 | - | T34290 |
5 | 26.32 | - | T34291 |
7.5 | 39.47 | - | T34292 |
10 | 52.63 | T23317 | T34293 |
15 | 78.95 | T23318 | T34294 |
25 | 131.58 | T23319 | T34295 |
37.5 | 197.37 | T23320 | T34296 |
50 | 263.16 | T23321 | T34297 |
75 | 394.74 | T23322 | T34298 |
100 | 526.32 | T23323 | T34299 |
167 | 878.95 | T23324 | T34300 |
200 | 1052.63 | T23325 | T34301 |
250 | 1315.79 | T23326 | T34302 |
330 | 1736.84 | T23327 | T34303 |
25. 230V Primary - 120 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 25 | - | T34304 |
5 | 41.67 | - | T34305 |
7.5 | 62.5 | - | T34306 |
10 | 83.33 | T23331 | T34307 |
15 | 125 | T23332 | T34308 |
25 | 208.33 | T23333 | T34309 |
37.5 | 312.5 | T23334 | T34310 |
50 | 416.67 | T23335 | T34311 |
75 | 625 | T23336 | T34312 |
100 | 833.33 | T23337 | T34313 |
167 | 1391.67 | T23338 | T34314 |
200 | 1666.67 | T23339 | T34315 |
250 | 2083.33 | T23340 | T34316 |
330 | 2750 | T23341 | T34317 |
26. 230V Primary - 115 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 26.09 | - | T34318 |
5 | 43.48 | - | T34319 |
7.5 | 65.22 | - | T34320 |
10 | 86.96 | T23345 | T34321 |
15 | 130.43 | T23346 | T34322 |
25 | 217.39 | T23347 | T34323 |
37.5 | 326.09 | T23348 | T34324 |
50 | 434.78 | T23349 | T34325 |
75 | 652.17 | T23350 | T34326 |
100 | 869.57 | T23351 | T34327 |
167 | 1452.17 | T23352 | T34328 |
200 | 1739.13 | T23353 | T34329 |
250 | 2173.91 | T23354 | T34330 |
330 | 2869.57 | T23355 | T34331 |
27. 230V Primary - 110 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 27.27 | - | T34332 |
5 | 45.45 | - | T34333 |
7.5 | 68.18 | - | T34334 |
10 | 90.91 | T23359 | T34335 |
15 | 136.36 | T23360 | T34336 |
25 | 227.27 | T23361 | T34337 |
37.5 | 340.91 | T23362 | T34338 |
50 | 454.55 | T23363 | T34339 |
75 | 681.82 | T23364 | T34340 |
100 | 909.09 | T23365 | T34341 |
167 | 1518.18 | T23366 | T34342 |
200 | 1818.18 | T23367 | T34343 |
250 | 2272.73 | T23368 | T34344 |
330 | 3000 | T23369 | T34345 |
28. 230V Primary - 100 Secondary
kVA | Output Amps | Aluminum | Copper |
3 | 30 | - | T34346 |
5 | 50 | - | T34347 |
7.5 | 75 | - | T34348 |
10 | 100 | T23373 | T34349 |
15 | 150 | T23374 | T34350 |
25 | 250 | T23375 | T34351 |
37.5 | 375 | T23376 | T34352 |
50 | 500 | T23377 | T34353 |
75 | 750 | T23378 | T34354 |
100 | 1000 | T23379 | T34355 |
167 | 1670 | T23380 | T34356 |
200 | 2000 | T23381 | T34357 |
250 | 2500 | T23382 | T34358 |
330 | 3300 | T23383 | T34359 |