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230 Volt Three Phase Autotransformers

K. 230 Volts Primary, Three Phase Autotransformers

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TEMCo Three Phase Autotransformers 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
• Copper windings
• 50/60 Hz rated
• NEMA 3R Enclosure (for indoor or outdoor use)

Looking for a different specification? Click here to see all the primary voltage configurations, or see our full selection of autotransformers here.


Product Selection

Copper Wound Autotransformers, 230V Primary

Select Secondary Voltage Below
kVA 460V 440V 416V 400V 380V 240V
15 T56180 T56190 T56200 T56210 T56220 T56230
30 T56181 T56191 T56201 T56211 T56221 T56231
45 T56182 T56192 T56202 T56212 T56222 T56232
75 T56183 T56193 T56203 T56213 T56223 T56233
112.5 T56184 T56194 T56204 T56214 T56224 T56234
225 T56185 T56195 T56205 T56215 T56225 T56235
300 T56186 T56196 T56206 T56216 T56226 T56236
450 T56187 T56197 T56207 T56217 T56227 T56237
500 T56188 T56198 T56208 T56218 T56228 T56238
750 T56189 T56199 T56209 T56219 T56229 T56239
kVA 220V 216V 208V 200V 190V 120V 115V
15 T56250 T56260 T56270 T56280 Contact T56300 T56310
30 T56251 T56261 T56271 T56281 Contact T56301 T56311
45 T56252 T56262 T56272 T56282 Contact T56302 T56312
75 T56253 T56263 T56273 T56283 Contact T56303 T56313
112.5 T56254 T56264 T56274 T56284 Contact T56304 T56314
225 T56255 T56265 T56275 T56285 Contact T56305 T56315
300 T56256 T56266 T56276 T56286 Contact T56306 T56316
450 T56257 T56267 T56277 T56287 Contact T56307 T56317
500 T56258 T56268 T56278 T56288 Contact T56308 T56318
750 T56259 T56269 T56279 T56289 Contact T56309 T56319

Output Amps

kVA Output Amps at:
460V 440V 416V 400V 380V 240V 220V 216V 208V 200V 190V 120V 115V
15 18.8 19.7 20.8 21.7 22.8 36.1 39.4 40.1 41.6 43.3 45.6 72.2 75.3
30 37.7 39.4 41.6 43.3 45.6 72.2 78.7 80.2 83.3 86.6 91.2 144.3 150.62
45 56.5 59.1 62.5 64 68.4 108.3 118.1 120.3 124.9 129.9 136.7 216.5 225.93
75 94.1 98.4 104.1 108.3 113 180.4 196.8 200.5 208.2 216.5 227.9 360.9 376.54
112.5 141.2 147.6 156.1 162.4 170.9 270.6 295.2 300.7 312.3 324.8 341.9 541.3 564.82
225 282.4 295.2 312.3 324.8 341.9 541.2 590.5 601.4 624.6 649.5 683.7 1082 1129
300 376.5 393.7 416.4 433 455.8 721.7 787.3 801.9 832.7 866.1 911.6 1443 1506
450 564.8 590.5 624.6 649.5 683.7 1082 1180 1202 1249 1299 1367 2165 2259
500 627.6 656.1 693 721.7 759.7 1202 1312 1336 1387 1443 1519 2405 2510
750 941.4 984.2 1040.9 1082.6 1139 1804 1968 2004 2081 2165 2279 3608 3765