3 kVA Three Phase Isolation Transformer, 415V to 220V, Step Up/Down

Note:

1. The transformer can only convert voltage, and CANNOT convert frequency.
2. The transformer CANNOT convert 1-phase voltage to 3-phase voltage.
3. Input/output voltage, power rating, and whether a shell for all transformers can be customized to meet clients' requirements.

Q1. What applications is a 3 kVA three-phase isolation transformer best suited for?

At 3 kVA, this is the lightest-duty unit in the three-phase isolation transformer range — suited for applications where the connected three-phase load is small but galvanic isolation or voltage conversion is still required. Typical uses include small control panels and relay cabinets, compact precision instruments and electronic test equipment, localised machine lighting circuits, small three-phase motors, and laboratory or development bench power supplies. It is also commonly used as a dedicated isolation supply for sensitive control electronics within larger machines, where isolating a small sub-circuit from the main distribution is the requirement rather than powering the machine itself.

Q2. How do I select the right primary and secondary voltage for my application?

Both primary (input) and secondary (output) voltages are independently selectable from a range of standard AC values — including 120V, 190V, 208V, 220V, 230V, 240V, 380V, 400V, 415V, and 480V — covering the major grid standards used across North America, Europe, the UK, India, the Middle East, and Asia-Pacific. To select the correct configuration, identify the voltage available at your supply point (primary) and the voltage required by your connected equipment (secondary). If your voltage pair is not listed, or if you need a non-standard combination, custom configurations are available on request — specify your requirements at the time of order.