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    30 kVA Isolation Transformer, 3 phase, 480 Volt to 415 Volt

    5 out of 5 based on 3 reviews | Write a review
    High efficiency 30kVA solation transformer is dry type air self cooling one, which is available in the circuit of AC 50Hz/60Hz and convert 3 phase voltage 480V to 415V, step up 415V to 480V is optional, low cost and manufactured direct sale.
    30-day Returns
    Delivery date: 10-20 days

    30 kVA Isolation Transformer Features

    • 3-phase unit with 30 kVA power rating.
    • Primary voltage of 480V AC on the primary side and secondary voltage of 415V AC on the secondary side.
    • Have a minimum 1 year warranty.
    • Better protection, high quality workmanship.


    Basics Model ATO-SG30KVA
    Phase 3 phase
    Capacity 30 kVA
    Weight of Aluminium Wire Transformer Open type: 160kg
    Protected type: 185kg
    Weight of Copper Wire Transformer Open type: 160kg
    Protected type: 185kg
    Technical Parameters Primary Voltage 480V (Optional: 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Secondary Voltage 415V (Optional: 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Voltage Convert Three phase to three phase
    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

    30 kVA Isolation Transformer Installation Dimension

    3 phase isolation transformer dimension

    Aluminium Wire Transformer Size Copper Wire Transformer Size
    Open type: a*b*c=440*350*430mm Open type: a*b*c=440*340*420mm
    Mouting size: d*e=300*205mm Mouting size: d*e=300*195mm
    Protected type: A*B*C=420*610*610mm Protected type: A*B*C=420*610*610mm

    Tips: Characteristics of ATO isolation transformer at the AC power input

    1. If the third harmonic and interference signal of the Grid is severe, use isolation transformer to remove the third harmonic and reduce the interference signal.
    2. The use of isolation transformers can generate a new neutral line to avoid the abnormal operation of equipment caused by unfit neutral power line.
    3. The current waveform distortion(such as third harmonic) caused by nonlinear load can be isolated without affecting the Grid.

    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 30 kVA Isolation Transformer, 3 phase, 480 Volt to 415 Volt
    Can ATO supply the isolation transformer we need?
    Can you provide a 70kVA isolation transformer with 3 inputs (460V, 480V, 690V) and 1 output (440V)?
    From: Tpe | Date: 26/01/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, we can.
    Update invoice info
    My order of 30kVA Isolation Transformer was shipped out and the invoice is in my name, is it possible to make an invoice in the company name?
    From: Andrey | Date: 23/04/2019
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, we will modify and resend you.
    Solid isolation transformer, good package
    I had to modify this transformer to use it for my purpose. I am using it as a safety device on my electronics service bench. It is a solid, well built unit.
    From: Naviathan | Date: 08/01/2019
    Was this review helpful? Yes No (0/0)
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