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    6 kVA Isolation Transformer, 3 phase, 480 Volt to 380 Volt

    5 out of 5 based on 1 reviews | Write a review
    Three phase 6 kVA isolation transformer is dry type air self cooling one, which is available in the circuit of AC 50Hz/ 60Hz and convert primary voltage 480V to secondary voltage 380V, long life span and high efficiency.
    30-day Returns
    Delivery date: 10-20 days

    High quality and safety 6 kVA capacity isolating transformers, convert 480V 3 phase to 380V 3 phase, with better dielectric strength and insulation resistance. It is designed for use in control circuits and general applications such as mechanical and electronic equipment, precision machine tool, CNC machine tool, lighting, etc.

    6 kVA Isolation Transformer Specifications

    Basics Model ATO-SG6KVA
    Phase 3 phase
    Capacity 6 kVA
    Weight of Aluminium Wire Transformer Open type: 60kg
    Protected type: 75kg
    Weight of Copper Wire Transformer Open type: 53kg
    Protected type: 65kg
    Technical Parameters Primary Voltage 480V (Optional: 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Secondary Voltage 380V (Optional: 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Frequency 50Hz / 60 Hz
    Winding Material Aluminium/Copper wire (Optional)
    Work Efficiency ≥95%
    Insulation Resistance ≥50 MΩ
    Electrical Strength 3000V AC/1 min
    Noise <35-65dB (1 meter)
    Insulation Grade H level
    Wiring Mode Dyn11
    Cooling Mode Dry type air cooling
    Overload Capacity Allow more than 1.2 times rated load to work for up to 4 hours
    Enclosure Protection Grade IP 24
    Certificate CE, ISO
    Warranty 12 months
    Working Environment Temperature -15℃~+40℃
    Humidity ≤90%RH, without condensation
    Altitude <1000m, non corrosive gas and conductive dust


    Transformer can only convert voltage and CANNOT convert frequency.
    Transformer CANNOT convert single phase voltage to 3 phase voltage.
    Input/output voltage, power rating and whether with shell of all transformers, can be customized according to clients' requirements.

    3 Phase Isolation Transformer Schematic Diagram

    ATO isolation transformers schematic diagram

    3 Phase Isolation Transformer Details

    3-phase isolation transformer details

    6 kVA Isolation Transformer Installation Dimension

    3 phase isolation transformer dimension

    Aluminium Wire Transformer Size Copper Wire Transformer Size
    Open type: a*b*c=380*200*380mm Open type: a*b*c=300*170*310mm
    Mouting size: d*e=260*110mm Mouting size: d*e=180*140mm
    Protected type: A*B*C=300*440*500mm Protected type: A*B*C=300*440*500mm

    Tips: Difference between single-phase and three-phase ATO isolation transformers

    ATO three-phase isolation transformer has three windings around one iron core, you can simultaneously transform three-phase power voltage to the secondary winding whose output is also three-phase power. And the single-phase isolation transformer core only has one winding, it can only transform one-phase power to the secondary side of the output. In large substations and power plants, three single-phase transformers are also used together to form a three-phase transformer which is called ''combined three-phase transformer''. Generally, Grid transmission and industry adopt three-phase power, so they all use three-phase transformers. The single-phase transformers are generally used for civilian need single-phase power supply such as household appliances and so on, its capacity is relatively small. Compared with single-phase isolation transformer, three-phase isolation transformer with the same capacity has advantages like smaller size, lower loss and material-saving, so does the motor.

    How to Test Step Up & Step Down Isolation Transformer?

    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.

    Existing reviews of 6 kVA Isolation Transformer, 3 phase, 480 Volt to 380 Volt
    Function of 6kVA isolation alarm transformer
    Does your Isolation transformer have alarm feature in case of overheating?
    From: Hamada | Date: 26/04/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, isolation transformer with a capacity of more than 100KVA will be equipped with an alarm H. This alarm is to detect the temperature of the transformer. When the temperature rises to 150 degrees, an alarm will be triggered. At this time, it is necessary to manually stop the transformer, or use it after reducing the power, or stop using and wait for the temperature return to normal, and then use transformer again.
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