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    500 VA Isolation Transformer, Single phase, 220V to 110V

    5 out of 5 based on 1 reviews | Write a review
    500 VA single phase isolation transformer for sales, step down low voltage 220 volt to 110 volt, other voltages are customizable. Optional for aluminum or copper wire winding, IP20 enclosure, four movable wheels for easy movement, working efficiency up to 95%.
    SKU: ATO-T-DG500VA
    30-day Returns
    Delivery date: 10-20 days

    Customized dry type isolation transformer at low cost, with 500 VA capacity, step down single phase primary voltage 220V to secondary voltage 110V AC, 110V to 220V step up transformer is available. 50Hz/60Hz frequency, CE, ISO certification, natural air self cooling, LCD display datas.
    Isolation transformers serve as secure power sources and are commonly employed in machine repair and maintenance to provide protection, prevent damage from lightning, and filter out electrical disturbances. Here is a demonstration video of a single phase isolation transformer.


    • Model: ATO-DG500VA
    • Capacity: 500VA
    • Phase: Single phase
    • Frequency: 50Hz / 60Hz
    • Winding Material: Aluminum/Copper wire (Optional)
    • Work Efficiency: ≥95%
    • Temperature: -15℃~+45℃
    • Enclosure Protection Grade: IP20
    • Primary Voltage: 220V AC (Optional: 110V/ 120V/ 208V/ 230V/ 240V)
    • Secondary Voltage: 110V AC (Optional: 208V/ 120V/ 220V/ 230V/ 240V)
    • Weight: 24kg

    Technical Specifications

    • Cooling Mode: Natural or air cooling
    • 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℃)
    • Overload Capacity: Allow more than 1.2 times rated load to work for up to 1 hour
    • Induced Overvoltage Withstand Test: 125Hz/800V/min
    • Impedance Voltage: About 6%
    • Total Losses: 10%
    • Certification: CE, ISO
    • Temperature: -15℃~+45℃
    • Enclosure Protection Grade: IP20
    • Warranty: 12 months


    • Heat dissipation holes and fans: The enclosure is a multi-hole design, the back of the transformer installed cooling fan, can be strong and effective heat dissipation, reduce the temperature of the machine, to better protect the internal components.
    • Two-color indicator: Input and output using LCD digital display meter, equipped with indicators to accurately display the voltage when working state.
    • High temperature resistant enameled wire: High temperature resistance up to 180℃, good insulation and not easy to aging, prolong the service life of the machine.
    • Oriented silicon steel sheet: Cold rolled oriented silicon steel sheet is used, which has the advantages of good heat dissipation coefficient, low core loss and good magnetization characteristics.
    • Long-term continuous work: With a wide range of applicable loads, can withstand transient overload, can work continuously for a long time.
    • Universal casters: Isolation transformer with four universal wheels, easy to move, can rotate 360 degrees, more energy-saving when pushing.
    • Enclosure: With strong enclosure to effectively prevent dust and protect the internal transformer.


    Schematic Diagram
    800 VA-15 kVA single phase isolation transformer schematic diagram


    Single phase isolation transformer details

    Tips: Single phase vs. three phase isolation transformer

    The single-phase isolation transformer is a device that uses the principle of electromagnetic induction to step-up or step-down the AC voltage, among which the primary coil, secondary coil and magnetic core are its main components. At the same time, it is worth mentioning that single-phase isolation transformer is different from three-phase isolation transformer in terms of input and output power types. In the former, both input and output are single-phase AC power supply and only single-phase power supply is needed for single-phase electric load. The three-phase isolation transformer input and output are three-phase symmetrical alternating current, and it can provide two different types of power supply of three-phase power and single-phase power. Besides, three independent windings are used in the three-phase isolation transformer, which can use different connection methods to input and output three-phase AC power supply.



    1-phase isolation transformer dimension

    Aluminium Wire Transformer Size

    Without Enclosure: a*b*c=150*160*180mm

    Mouting Size: D*E=120*115mm (aperture: 15*8mm)

    With Enclosure: A*B*C=250*360*420mm

    Copper Wire Transformer Size

    Without Enclosure: a*b*c=132*140*150mm

    Mouting Size: D*E=100*110mm (aperture: 12*7mm)

    With Enclosure: A*B*C=200*320*420m


    360 Days warranty

    Thank you for buying industrial automation products on, all products sold by ATO and the partner cover a 360-days-warranty, effective from the date of receiving the products.

    What is covered?

    ATO is responsible for providing free spare parts, free technical support to assist the customer to repair the defective products until the problem is solved.

    What is not covered?

    • Product purchased from anyone other than ATO store or a ATO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than ATO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by ATO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a ATO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
    Existing reviews of 500 VA Isolation Transformer, Single phase, 220V to 110V
    Perfect for my needs
    It's great to use this 500 VA isolation transformer! Since using it, my equipment runs more stable, single phase operation, converting my 220V power supply to a stable 110V, perfect for my needs.
    From: Jett | Date: 20/10/2023
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