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    3000VA Step-Down Toroidal Transformer, 240V AC to 12V/24V

    Factory price 3000VA toroidal electronic transformer with 90%-60% high conversion efficiency, safe isolation and easy installation. It is designed to step down 50Hz/ 60Hz single phase 240 volt AC primary to 12 volt, 24 volt AC secondary, twin 24-0-24V (24V/1500V, 24V/1500V) output voltage is available.
    SKU: ATO-T-C3000VA
    30-day Returns
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    Delivery date: 6-12 days

    Customized 1-phase toroidal transformer power supply for audio amplifier, transforms 240V to 12V/24V, all copper material and compact structure make efficiency>90%. Low noise, low resistance loss, low heat generation with uniform circular section and continuous winding.

    Advantages of ATO Toroidal Transformer

    1. High Efficiency: Winding matches core perfectly, which makes the transformer more efficiency.

    2. Long Service Life: With high quality materials and manufacturing technology, the transformer can be used for 30 years.

    3. Less Noise: The core is seamlessly rolled and the winding is set evenly over it, which makes the transformer quiet when it is working.

    4. Less Radiation: Toroidal structure and winding technology reduce electromagnetic radiation.

    5. Low Temperature Rise: Even it is overloaded at 120%, temperature rise will be less than 70℃.

    3000VA Toroidal Transformer Specifications

    Model ATO-C3000VA
    Phase Single phase
    Power 3000VA (3000W)
    Primary Voltage 240V AC (Optional: 110V, 120V, 220V, 230V, 240V)
    Secondary Voltage 24 AC (Optional: 12V, 24V, 48V, 110V, 220V, 2x6V, 2x12V, 2x15V, 2x24V, 2x30V, 2x35V, 2x40V, 2x50V, can be customized)
    Secondary Current 125A
    No. of Inputs 1 input
    No. of Outputs

    1 output (4-wire 2 outputs are available)

    Note: For the transformer with 2 outputs 4-wire, each output provides the same voltage and current level, the sum of 2 output power capacities is equal to the total capacity.

    Frequency 50Hz/60Hz
    Winding Material Copper Wire
    Coil Structure Toroidal
    Efficiency 90%-96%
    No-load Loss <6.23W
    Input Wire UL1672-18
    Output Wire UL1015-18
    Voltage Strength DC2500V
    Insulation Impedance ≥500MΩ
    Cooling Method Natural air cooling
    Temperature +40℃
    Certification CE, RoHS, ISO, UL
    Warranty 12 months
    External Diameter 225mm
    Height 90mm
    Pedestal 220*220mm
    Mounting Hole Distance 220*220mm
    Weight 22kg
    Package Included 1*Toroidal transformer + 1*Accesorries sets (Nut, Shim, Metal disk, Rubber gaske, Pedestal, Screw)

    Toroidal Transformer Accessories

    toroidal transformer accessories

    Toroidal Transformer Mounting Methods

    toroidal transformer mounting method

    Toroidal Transformer Internal Structure

    toroidal transformer internal structure


    Tips: The higher the power of toroidal transformer, the higher the efficiency

    Toroidal transformer is a kind of step-up & step-down transformer power supply, which has the advantages of small volume, low noise, less heat and high performance. Generally, we use a variety of voltages, such as 220V for domestic lighting, 36V for industrial safety lighting, and the voltage of the welding machine needs to be adjusted. These cannot be separated from the toroidal transformer, which can step down the voltage we need through the principle of electromagnetic mutual inductance of the main and auxiliary coils.

    The larger the rated power of the transformer, the higher the working conversion efficiency. The same 220V to 24V transformer with a rated power of 500VA has a working conversion efficiency of more than 92%, while the conversion efficiency of 50VA low power is only 85%. There is a clear difference between the two.

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