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    Picture of 5 kVA Single Phase Isolation Transformer, 230V to 120V
    Picture of 5 kVA Single Phase Isolation Transformer, 230V to 120V
    Picture of 5 kVA Single Phase Isolation Transformer, 230V to 120V
    Picture of 5 kVA Single Phase Isolation Transformer, 230V to 120V
    Picture of 5 kVA Single Phase Isolation Transformer, 230V to 120V
    Picture of 5 kVA Single Phase Isolation Transformer, 230V to 120V
    Picture of 5 kVA Single Phase Isolation Transformer, 230V to 120V

    5 kVA Single Phase Isolation Transformer, 230V to 120V

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    SKU: PH-T-DG5KVA
    $1,436.54
    ● 5 kVA isolation transformer, default 230V to 120V step-down; step-up and custom voltages available. ● Compatible with AC 50Hz / 60Hz for global applications. ● Multi-voltage support: 110V / 120V / 208V / 220V / 230V / 240V configurable on both primary and secondary sides. ● Working efficiency up to 95%; enhanced dielectric strength and insulation resistance for higher safety. ● Dry-type natural air self-cooling; IP20 enclosure protection; aluminum or copper wire winding optional.
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    Overview

    The single-phase 5 kVA isolation transformer combines cost efficiency with strong electrical performance. Rated for 230V to 120V step-down operation (or 120V to 230V step-up), it supports a full range of customizable voltage configurations ā€” including 110V, 120V, 208V, 220V, 230V, and 240V on both primary and secondary sides. Delivering up to 95% working efficiency, this dry-type isolation transformer stands out with improved dielectric strength, higher insulation resistance, lower operating noise, and a reduced temperature rise profile. The IP20 enclosure with dry-type natural air self-cooling requires no liquid cooling medium, keeping maintenance minimal. Aluminum or copper enameled wire winding is also optional.

    5 kVA single-phase isolation transformer feature

    Feature

    • Insulation & Safety Performance: Provides high dielectric strength and insulation resistance, ensuring safe and reliable operation.
    • Lower Noise: Engineered for quieter, cooler operation compared to conventional designs at this power class. 
    • Up to 95% Working Efficiency: High working efficiency minimizes energy waste across the full operating range, a cost-effective long-term investment for facilities running single-phase loads continuously or at high utilization rates.
    • Voltage Conversion & Customization: Supports 230V ā†” 120V conversion and allows custom input/output voltage options for different applications.
     

    1. Details

      1. Power indicator
      2. Over-temperature indicator
      3. Output voltage digital display screen
    Single-phase isolation transformer details

    Single-phase Isolation Transformer Schematic Diagram

    0.5kVA to 10kVA single-phase isolation transformer schematic diagram

    Single-phase Isolation Transformer Dimension

    Single-phase isolation transformer dimension

     

    Aluminium Wire Transformer Size Copper Wire Transformer Size
    Without Enclosure: a*b*c=240*230*260 (mm) Without Enclosure: a*b*c=210*230*230 (mm)
    Mouting Size: D*E=180*160 (mm) (aperture: 20*10mm) Mouting Size: D*E=150*170 (mm) (aperture: 18*8mm)
    With Enclosure: A*B*C=300*440*500 (mm) With Enclosure: A*B*C=300*440*500 (mm)
    Specs
    Basics
    Phase Single-phase
    Capacity 5000 VA / 5 kVA
    Weight 58 kg
    Technical Parameters
    Primary Voltage 230V AC (optional: 110V/ 120V/ 208V/ 220V/ 240V)
    Secondary Voltage 120V AC (optional: 110V/ 208V/ 220V/ 230V/ 240V)
    Frequency 50Hz / 60Hz
    Winding Material Aluminium / Copper wire (Optional)
    Work Efficiency ā‰„95%
    Insulation Resistance ā‰„50 MĪ©
    Electrical Strength 2000V AC / 1 min
    Noise ā‰¤35dB (1 meter)
    Insulation Grade Grade B (130ā„ƒ) / Grade F (155ā„ƒ) / Grade H (180ā„ƒ)
    Induced Overvoltage Withstand Test 125Hz / 800V / min
    Impedance Voltage About 6%
    Total Losses 10%
    Cooling Mode Natural or air cooling
    Overload Capacity Allow more than 1.2 times the rated load to work for up to 1 hour
    Enclosure Protection Grade IP20
    Certificate CE, ISO
    Warranty 12 months
    Working Environment
    Temperature -15ā„ƒ ~ +45ā„ƒ

    Note:

    1. The transformer can only convert voltage, and CANNOT convert frequency.
    2. The transformer CANNOT convert 1-phase voltage to 3-phase voltage.
    3. Support voltage customization, various specifications customization.
    Application
    Single-phase isolation transformer for industrial equipment

    Industrial Equipment

    Single-phase isolation transformer for factory and industrial parks

    Factory & Industrial Parks

    Single-phase isolation transformer for machine tools and equipment

    Machine Tools & Equipment

    Single-phase isolation transformer for communication equipment

    Communication Equipment

    FAQ

    Q1. What voltage configurations are supported by this 5 kVA isolation transformer?

    The default configuration steps down 230V to 120V, with a 120V to 230V step-up version also available. Both primary and secondary voltages are fully customizable across a wide range, including 110V, 120V, 208V, 220V, 230V, and 240V. Please specify your required input/output voltage combination when placing your order.

    Q2. What makes the dielectric strength and insulation resistance of this transformer notable?

    Higher dielectric strength means the transformer can withstand greater voltage stress between its windings and core without breakdown, reducing the risk of insulation failure. Higher insulation resistance minimizes leakage current between circuits, enhancing safety for both the transformer and any connected sensitive equipment. Together, these properties make the 5 kVA model a stronger choice for applications where electrical safety margins are a priority.

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