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    10 kVA Isolation Transformer, Single phase, 120V to 240V

    5 out of 5 based on 2 reviews | Write a review
    Single phase 120V to 240V isolation transformer is design to use in AC circuit 50Hz or 60 Hz, 10 kVA capacity for safety. Open type and protected type versions are available, the effective performance and high quality features make it ideal for use in the electrical and the engineering industries.
    30-day Returns
    Delivery date: 10-20 days

    Hot sale 10 kVA isolation transformer in low cost, 50Hz or 60 Hz rated, convert AC single phase 120 volt primary voltage to 240 volt secondary voltage, is usually used as power source for the machine control or lighting and signal purpose.
    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-DG10kVA
    • Capacity: 10kVA
    • Phase: Single phase
    • Winding Material: Aluminum/Copper wire (Optional)
    • Work Efficiency: ≥95%
    • Primary Voltage: 120V AC (Optional: 110V/ 120V/ 208V/ 220V/ 230V/ 380V/ 400V/ 415V/ 480V)
    • Secondary Voltage: 240V AC (Optional: 24V/ 36V/ 48V/ 110V/ 120V/ 208V/ 220V/ 230V/ 380V/ 400V/ 415V/ 480V)
    • Weight: 100 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


    800 VA-15 kVA single phase isolation transformer schematic diagram



    Single phase isolation transformer details

    Tips: The CNC machine needs to use isolation transformer for filtering, isolation, shielding and protection.

    The CNC machine is generally used in a poor electrical network environment. Particularly, once a large-scale electric power equipment in the nearby public AC power grid starts or stops, noise and harmonic wave interference will be produced, which may enter the system through the input power of the CNC machine. Therefore, an 1:1 isolation transformer like 10 kVA 240V to 240V isolation transformer which has the functions of filtering, isolation, shielding and protection, shall be used to block the noise from the outside of the system.

    A shielding layer is added between the primary winding and the secondary winding of the isolation transformer, and the transformer and iron core are grounded to prevent the interference signals from entering the DC power supply system through primary circuits. It can effectively restrict the transient strong pulse interference from the power grid, and makes it difficult for DC or low frequency interference signals to form the induced noise through conduction.


    1-phase isolation transformer dimension

    Aluminium Wire Transformer Size

    Without Enclosure: a*b*c=290*300*350mm

    Mouting Size: D*E=150*180mm (aperture: 20*10mm)

    With Enclosure: A*B*C=380*530*560mm

    Copper Wire Transformer Size

    Without Enclosure: a*b*c=300*310*345mm

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

    With Enclosure: A*B*C=380*530*560mm


    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 10 kVA Isolation Transformer, Single phase, 120V to 240V
    What does 501 and 601 mean in isolation transformer?
    We bought 2 Isolation transformers, ATO-T-DG10KVA and ATO-T-DG2KVA
    Electrical connection is not clear for me.
    Could you help me to clarify the connections??
    What does “0” means? See picture below.
    Red are for inputs and green for outputs?
    Sorry, but Instruction manual doesn’t say anything about it.
    What does 501 and 601 mean?
    From: carver | Date: 06/06/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, red are for inputs and green for outputs.
    501 and 601 are the internal wiring of the transformer for output indicator lights.
    Please kindly consider this order as confirmed.
    Please kindly consider this order as confirmed. Can you kindly let me know if the payment can done by online payment please?
    From: Oumarou | Date: 25/07/2019
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, you can place your order online by credit card.
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