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We provide custom toroidal auto transformers with a capacity range from 50VA to 5000VA. These transformers support input voltage of 380V and output voltages including 230V, 220V, 110V and other customized voltages. Featuring a toroidal core structure, they have the advantages of low noise, high efficiency, small size and stable performance, widely used in electronic equipment, industrial control, power supply systems and electrical devices.


Wide capacity range: 50VA–5000VA customizable
Toroidal core design: low noise, high efficiency, compact size
Multiple voltage options: 380V input, 230V/220V/110V output
Auto transformer structure, high cost performance
Stable output, low no-load loss, long service life
Fully customized voltage, power and connection method


Capacity: 50VA, 100VA, 200VA, 500VA, 1kVA, 2kVA, 3kVA, 5kVA, customizable
Input Voltage: 380V (customizable)
Output Voltage: 230V, 220V, 110V (customizable)
Frequency: 50Hz / 60Hz
Type: Toroidal auto transformer
Cooling: Natural air cooling
Insulation class: B or F


Industrial control equipment and automation systems
Power supply for household and commercial electrical appliances
Audio equipment, instruments and electronic devices
Mechanical equipment and small power distribution systems
Projects requiring customized voltage conversion