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190 Volt Single Phase Autotransformers

Q. 190 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

190V Primary, Copper Wound, 1 Phase Autotransformers

kVA Select Secondary Voltage Below
380V 347V 277V 240V 230V 220V 208V
3 Contact Contact Contact Contact Contact Contact Contact
5 Contact Contact Contact Contact Contact Contact Contact
7 Contact Contact Contact Contact Contact Contact Contact
10 Contact Contact Contact Contact Contact Contact Contact
15 Contact Contact Contact Contact Contact Contact Contact
25 Contact Contact Contact Contact Contact Contact Contact
37 Contact Contact Contact Contact Contact Contact Contact
50 Contact Contact Contact Contact Contact Contact Contact
75 Contact Contact Contact Contact Contact Contact Contact
100 Contact Contact Contact Contact Contact Contact Contact
kVA Select Secondary Voltage Below
200V 120V 115V 110V 100V
3 Contact Contact Contact Contact Contact
5 Contact Contact Contact Contact Contact
7 Contact Contact Contact Contact Contact
10 Contact Contact Contact Contact Contact
15 Contact Contact Contact Contact Contact
25 Contact Contact Contact Contact Contact
37 Contact Contact Contact Contact Contact
50 Contact Contact Contact Contact Contact
75 Contact Contact Contact Contact Contact
100 Contact Contact Contact Contact Contact

Output Amps

kVA Output Amps at:
380V 347V 277V 240V 230V 220V 208V 200V 120V 115V 110V 100V
3 7.9 8.7 10.8 12.5 13 13.6 14.4 15 25 26.1 27.3 30
5 13.2 14.4 18.1 20.8 21.7 22.7 24 25 41.7 43.5 45.5 50
7 18.4 20.2 25.3 29.2 30.4 31.8 33.7 35 58.3 60.9 63.6 70
10 26.3 28.8 36.1 41.7 43.5 45.5 48.1 50 83.3 86.96 90.9 100
15 39.5 43.2 54.2 62.5 65.2 68.2 72.1 75 125 130.4 136.4 150
25 65.8 72.1 90.3 104.2 108.7 113.6 120.2 125 208.3 217.4 227.3 250
37 97.4 106.6 133.6 154.2 160.9 168.2 177.9 185 308.3 321.7 336.4 370
50 131.6 144.1 180.5 208.3 217.4 227.3 240.4 250 416.7 434.8 454.6 500
75 197.4 216.1 270.76 312.5 326.1 340.9 360.6 375 625 652.2 681.8 750
100 263.2 288.2 361.01 416.7 434.8 454.6 480.8 500 833.3 869.6 909.1 1000