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    15 kVA Isolation Transformer, single phase, 208V to 110V

    Affordable single phase 15 kVA isolation transformer adopts high quality material and advanced technology, it has advantages of damp- proof and convenient maintenance, mainly used in power supply occasions of AC 50~60Hz, step down & step up voltage between 110V and 208V.
    Free shipping
    Delivery date: 6-12 days

    15 kVA Isolation Transformer Features

    • 15 kva capacity, available in the circuit of AC 50Hz/60Hz.
    • To step down/up the single phase voltage 208V to 110V ( Various voltages of primary and secondary are available here for your selection).
    • High efficiency and low temperature rise.
    • IP 20 protection grade of enclosure for indoor or outdoor use, rated for hazardous locations as well as harsh industrial environments.


    Model ATO-DG15KVA
    Phase Single phase
    Capacity 15 kVA
    Primary Voltage 208V AC (optional: 110V/ 120V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Secondary Voltage 110V AC (optional: 24V/ 36V/ 48V/ 120V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Frequency 50Hz / 60Hz
    Winding Material Aluminium/Copper wire (Optional)
    Work Efficiency ≥95%
    Insulation Resistance ≥50 MΩ
    Electrical Strength 2000V AC/1 min
    Noise ≤35dB (1 meter)
    Insulation Grade Grade B (130℃), Grade F (155℃), Grade H (180℃)
    Wiring Mode △/Yn11
    Cooling Method Natural or air cooling
    Overload Capacity Allow more than 1.2 times rated load to work for up to 1 hour
    Certification CE, ISO
    Temperature -15℃~+45℃
    Humidity ≤90%RH, without condensation
    Altitude <2000m, non corrosive gas and conductive dust
    Enclosure Protection Grade IP 20
    Warranty 12 months
    Size 360*270*450 mm (without shell);
    510*420*600 mm (with shell)
    Weight About 88 kg (without shell);
    About 100 kg (with shell)

    Transformer can only convert voltage and CANNOT convert frequency.
    Transformer CANNOT convert single phase voltage to 3 phase voltage.
    Support voltage customization, various specifications customization.

    Single Phase Isolation Transformer Schematic Diagram
    DG isolation transformer schematic diagram
    15 kVA Isolation Transformer Dimension
    15kva isolation transformer dimensionTips: Other functions of the isolation transformer
    An isolation transformer is added for personal safety when using some electrical appliances. For example, when repairing a color TV set, the maintenance personnel may suffer from an electric shock if he contacts this circuit accidentally because the power supply unit of the color TV set is connected with the electric supply, thus endangering his personal safety. When repairing some household appliances, the isolation transformer should also be connected. The connection method is: Connect one connector of the isolation transformer to the socket and the other connector to another socket firstly, then connect the repairing household appliance to the socket where the isolation transformer is connected.

    Need more detail of ATO isolation transformer? Here is a good explanation about it in this video. To test the accuracy of the transformer voltage, we take a 3000 VA single phase 220V iuput to 110V output isolation transformer as an example.

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