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110 Volt Single Phase Autotransformers

T. 110 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

kVA Select Secondary Voltage Below
220V 208V 200V 190V 120V 115V 100V
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

Output Amps

kVA Output Amps at:
220V 208V 200V 190V 120V 115V 100V
3 13.6 14.4 15 15.8 25 26.1 30
5 22.7 24 25 26.3 41.7 43.5 50
7 31.8 33.7 35 36.8 58.3 60.9 70
10 45.5 48.1 50 52.6 83.3 86.96 100
15 68.2 72.1 75 79 125 130.4 150
25 113.6 120.2 125 131.6 208.3 217.4 250
37 168.2 177.9 185 194.7 308.3 321.7 370
50 227.3 240.4 250 263.2 416.7 434.8 500
75 340.9 360.6 375 394.7 625 652.2 750
100 454.6 480.8 500 526.3 833.3 869.6 1000