We supply liquid filled pad mounted distribution transformers. Nothing in distribution work is this small. See our transformer types page for where control transformers fit. See three phase ratings and single phase ratings.
Full load current
| Configuration | Full load current |
|---|---|
| 480 V single phase | 6 A |
| 240 V single phase | 13 A |
| 120 V single phase | 25 A |
Nameplate full load current, computed from the standard formula. Free to cite with a link to this page. Any other rating, use the kVA to amps calculator.
What this rating is
A 3 kVA transformer is a control transformer, mounted inside a machine panel to produce a 120 volt control circuit from a 480 or 240 volt supply.
About 25 amps at 120 volts. Control transformers are specified with both a continuous VA and an inrush VA, and the inrush figure is usually what governs the size.
Common questions
How many amps is a 3 kVA transformer
About 6 amps at 480 V single phase. About 13 amps at 240 V single phase. About 25 amps at 120 V single phase. Three phase current is kVA times 1000 divided by the voltage times the square root of three. Single phase leaves out the square root of three, which is why the single phase figures are much higher.
What is a 3 kVA transformer used for
A 3 kVA transformer is a control transformer, mounted inside a machine panel to produce a 120 volt control circuit from a 480 or 240 volt supply.
Is a 3 kVA transformer pad mounted
No, it is a control unit rather than a liquid filled pad mounted transformer. Nothing in distribution work is this small. See our transformer types page for where control transformers fit.