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    30 kVA Isolation Transformer, Single Phase, 110V to 220V

    5 out of 5 based on 2 reviews | Write a review
    30 kVA isolation transformer, single-phase distribution power transformer foe sale, step up 110V primary to 220V secondary voltage or step down 220V input to 110V output, LCD display voltage, aluminum wire or copper wire, low temperature rise.
    30-day Returns
    Delivery date: 10-20 days

    Safety single phase 110V to 220V step up isolation transformer has 30 kVA capacity, factory price, 50Hz/60Hz frequency, three insulation grades to guarantee the security. Overload capacity allows more than 1.2 times rated load to work for up to 1 hour, which makes the single phase transformer harmless.
    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.

    Basic Specifications

    • Model: ATO-DG30kVA
    • Capacity: 30kVA
    • Phase: Single phase
    • Frequency: 50Hz/60Hz
    • Winding Material: Aluminum/Copper wire (Optional)
    • Work Efficiency: ≥95%
    • Primary Voltage: 110V AC (Optional: 120V/ 208V/ 220V/ 230V/240V)
    • Secondary Voltage: 120V AC (Optional: 110V/ 208V/ 220V/ 230V/ 240V)
    • Weight: 185 kg

    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
    DG isolation transformer schematic diagram


    Single phase isolation transformer details

    Tips: Why using isolation transformer?

    1. Generally, ungrounded systems leads to fewer single-phase electric shocks. Due to that, grounding system should be transformed into ungrounded system by using isolation transformer in some specific situation. For example, if people fix a TV which connected to an isolation transformer, he can operate it at 220V voltage with no trouble in electricity. It is safe!
    2. For safety, isolation transformers are needed to supply ungrounded power to industry pick and place equipment, wave soldering machine, reflow controller, etc.


    1-phase isolation transformer dimension

    Aluminium Wire Transformer Size

    Without Enclosure: a*b*c=370*350*520mm

    Mouting Size: D*E=190*190mm (aperture: 20*10mm)

    With Enclosure: A*B*C=420*610*610mm

    Copper Wire Transformer Size

    Without Enclosure: a*b*c=330*330*470mm

    Mouting Size: D*E=220*220mm (aperture: 20*10mm)

    With Enclosure: A*B*C=420*610*610mm


    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 30 kVA Isolation Transformer, Single Phase, 110V to 220V
    Use of 30kVA isolation transformer
    For the 30KVA isolation transformer, 3 Phase, 400 Volt Input, 480 Volt output, with copper wire. Can we get it painted RAL7035 semi-gloss? If yes. How much extra and long to get it?
    From: Montani | Date: 27/08/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, we can customize the housing color as RAL7035 semi-gloss.
    Good 30 kVA isolation transformer
    Can you provide IECEx flameproof isolation transformers?
    From: Dezarah | Date: 08/05/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, we can provide IECEx flameproof transformer fit for zone 1 or at least gas group IIB.
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