D. 480 Volts Primary, Single Phase Autotransformers
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TEMCo Single 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
• Aluminum or 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
480V Primary, Copper Wound, 1 Phase Autotransformers
| kVA | Select Secondary Voltage Below | |||||||||||
| 600V | 575V | 550V | 480V | 460V | 440V | 416V | 400V | 380V | 347V | 277V | 240V | |
| 3 | T50270 | T50280 | T50290 | T50300 | T50310 | T50320 | T50330 | T50340 | T50350 | T50360 | T50370 | T50380 |
| 5 | T50271 | T50281 | T50291 | T50301 | T50311 | T50321 | T50331 | T50341 | T50351 | T50361 | T50371 | T50381 |
| 7 | T50272 | T50282 | T50292 | T50302 | T50312 | T50322 | T50332 | T50342 | T50352 | T50362 | T50372 | T50382 |
| 10 | T50273 | T50283 | T50293 | T50303 | T50313 | T50323 | T50333 | T50343 | T50353 | T50363 | T50373 | T50383 |
| 15 | T50274 | T50284 | T50294 | T50304 | T50314 | T50324 | T50334 | T50344 | T50354 | T50364 | T50374 | T50384 |
| 25 | T50275 | T50285 | T50295 | T50305 | T50315 | T50325 | T50335 | T50345 | T50355 | T50365 | T50375 | T50385 |
| 37 | T50276 | T50286 | T50296 | T50306 | T50316 | T50326 | T50336 | T50346 | T50356 | T50366 | T50376 | T50386 |
| 50 | T50277 | T50287 | T50297 | T50307 | T50317 | T50327 | T50337 | T50347 | T50357 | T50367 | T50377 | T50387 |
| 75 | T50278 | T50288 | T50298 | T50308 | T50318 | T50328 | T50338 | T50348 | T50358 | T50368 | T50378 | T50388 |
| 100 | T50279 | T50289 | T50299 | T50309 | T50319 | T50329 | T50339 | T50349 | T50359 | T50369 | T50379 | T50389 |
Output Amps
| kVA | Output Amps at: | ||||||||||||||||||||
| 600V | 575V | 550V | 480V | 460V | 440V | 416V | 400V | 380V | 347V | 277V | 240V | ||||||||||
| 3 | 5 | 5.2 | 5.5 | 6.3 | 6.52 | 6.8 | 7.2 | 7.5 | 7.9 | 8.7 | 10.8 | 12.5 | |||||||||
| 5 | 8.3 | 8.7 | 9.1 | 10.4 | 10.9 | 11.4 | 12 | 12.5 | 13.2 | 14.4 | 18.1 | 20.8 | |||||||||
| 7 | 11.7 | 12.2 | 12.7 | 14.6 | 15.2 | 15.9 | 16.8 | 17.5 | 18.4 | 20.2 | 25.3 | 29.2 | |||||||||
| 10 | 16.7 | 17.4 | 18.2 | 20.8 | 21.74 | 22.7 | 24 | 25 | 26.3 | 28.8 | 36.1 | 41.7 | |||||||||
| 15 | 25 | 26.1 | 27.3 | 31.3 | 32.61 | 34.1 | 36.1 | 37.5 | 39.5 | 43.2 | 54.2 | 62.5 | |||||||||
| 25 | 41.7 | 43.5 | 45.5 | 52.1 | 54.35 | 56.8 | 60.1 | 62.5 | 65.8 | 72.1 | 90.3 | 104.2 | |||||||||
| 37 | 61.7 | 64.4 | 67.3 | 77.1 | 80.43 | 84.1 | 88.9 | 92.5 | 97.4 | 106.6 | 133.6 | 154.2 | |||||||||
| 50 | 83.3 | 86.9 | 90.9 | 104.2 | 108.7 | 113.64 | 120.2 | 125 | 131.6 | 144.1 | 180.5 | 208.3 | |||||||||
| 75 | 125 | 130.4 | 136.4 | 156.3 | 163 | 170.45 | 180.3 | 187.5 | 197.4 | 216.1 | 270.76 | 312.5 | |||||||||
| 100 | 166.7 | 173.9 | 181.8 | 208.3 | 217.4 | 227.3 | 240.4 | 250 | 263.2 | 288.2 | 361.01 | 416.7 | |||||||||