C. 550 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
550V Primary, Copper Wound, 1 Phase Autotransformers
| kVA | Select Secondary Voltage Below | ||||||||||
| 600V | 575V | 480V | 460V | 440V | 416V | 400V | 380V | 347V | 277V | ||
| 3 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
| 5 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
| 7 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
| 10 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
| 15 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
| 25 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
| 37 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
| 50 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
| 75 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
| 100 | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | Contact | |
Output Amps
| kVA | Output Amps at: | ||||||||||||||||||||
| 600V | 575V | 480V | 460V | 440V | 416V | 400V | 380V | 347V | 277V | ||||||||||||
| 3 | 5 | 5.2 | 6.3 | 6.52 | 6.8 | 7.2 | 7.5 | 7.9 | 8.7 | 10.8 | |||||||||||
| 5 | 8.3 | 8.7 | 10.4 | 10.9 | 11.4 | 12 | 12.5 | 13.2 | 14.4 | 18.1 | |||||||||||
| 7 | 11.7 | 12.2 | 14.6 | 15.2 | 15.9 | 16.8 | 17.5 | 18.4 | 20.2 | 25.3 | |||||||||||
| 10 | 16.7 | 17.4 | 20.8 | 21.74 | 22.7 | 24 | 25 | 26.3 | 28.8 | 36.1 | |||||||||||
| 15 | 25 | 26.1 | 31.3 | 32.61 | 34.1 | 36.1 | 37.5 | 39.5 | 43.2 | 54.2 | |||||||||||
| 25 | 41.7 | 43.5 | 52.1 | 54.35 | 56.8 | 60.1 | 62.5 | 65.8 | 72.1 | 90.3 | |||||||||||
| 37 | 61.7 | 64.4 | 77.1 | 80.43 | 84.1 | 88.9 | 92.5 | 97.4 | 106.6 | 133.6 | |||||||||||
| 50 | 83.3 | 86.9 | 104.2 | 108.7 | 113.64 | 120.2 | 125 | 131.6 | 144.1 | 180.5 | |||||||||||
| 75 | 125 | 130.4 | 156.3 | 163 | 170.45 | 180.3 | 187.5 | 197.4 | 216.1 | 270.76 | |||||||||||
| 100 | 166.7 | 173.9 | 208.3 | 217.4 | 227.3 | 240.4 | 250 | 263.2 | 288.2 | 361.01 | |||||||||||