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    Picture of 8 kVA Automatic Voltage Stabilizer, Three Phase, 220V/380V/400V
    Picture of 8 kVA Automatic Voltage Stabilizer, Three Phase, 220V/380V/400V
    Picture of 8 kVA Automatic Voltage Stabilizer, Three Phase, 220V/380V/400V
    Picture of 8 kVA Automatic Voltage Stabilizer, Three Phase, 220V/380V/400V
    Picture of 8 kVA Automatic Voltage Stabilizer, Three Phase, 220V/380V/400V
    Picture of 8 kVA Automatic Voltage Stabilizer, Three Phase, 220V/380V/400V

    8 kVA Automatic Voltage Stabilizer, Three Phase, 220V/380V/400V

    1 review(s) | Add your review
    SKU: PH-AVS-3P8K
    $2,294.26
    ● Rated capacity is 8 kVA, with automatic voltage stabilization ● Wide AC input voltage range reaches 304V–456V (±20%) ● Standard 3 phase 380V output, customizable to 415V or 480V ● Designed for three-phase four-wire power systems ● Suitable for industrial equipment and commercial power applications
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    ⏱️ Delivery: 10-20 days
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    Overview

    This 8 kVA 3-phase automatic voltage stabilizer is designed to provide reliable and precise voltage regulation for industrial and commercial power systems. Featuring a wide input voltage range of 304V–456V AC (±20%) and a standard 380V output, it effectively protects sensitive equipment from voltage fluctuations caused by unstable grids. With a compact industrial-grade design, LED status display, and IP24 protection level, this stabilizer is suitable for three-phase four-wire systems where consistent voltage stability is essential. Multiple output voltages, including 380V, 415V, and 480V, are available to meet different regional and application requirements.

    8 kVA 3 phase voltage stabilizer feature

    Feature

    • Industrial-Grade Precision: Ensures a perfectly stable output voltage of 380V (±1%) under the demanding conditions of a wide input range from 304V to 456V AC.
    • Customizable & Compact Solution: Offers flexible output voltage selection (380V/415V/480V...) and features a highly compact, virtually maintenance-free design ideal for space-conscious installations.
    • Intuitive Monitoring & Robust Protection: Equipped with a clear LED display for real-time voltage monitoring and housed in an IP24-rated cabinet for reliable protection in industrial and commercial settings.
    • Seamless System Integration: Specifically engineered for three-phase four-line power systems, ensuring a stable and safe voltage supply for critical machinery and sensitive processes.
     

    Details

    1. Heat dissipation holes
    2. Voltage display
    3. Circuit breaker
    4. Bypass
    8 kVA 3 phase voltage stabilizer details

    3 Phase Voltage Stabilizer Schematic Diagram

    3 phase voltage stabilizer schematic diagram

    Specs
    Capacity 8 kVA (The power capacity of the voltage stabilizer needs to be 1.5~2 times greater than the load power)
    Phase 3-Phase 4-line
    Input Voltage Range ±15% tolerance for all standard output voltages above 380V.
    ±20% tolerance for the required 380V output and all standard voltages below.
    Output Voltage 3-phase 380V (Optional: 110V/ 120V/ 208V/ 220V/ 230V/ 240V/ 400V/ 415V/ 440V/ 460V/ 480V)
    Output Accuracy ±2~4% / ±1% (Optional)
    * In case of output accuracy of ±2~4%, the voltage stabilizer will be servomotor-based, and in case of output accuracy of ±1%, the voltage stabilizer would be SCR-based.
    Frequency 50Hz/60Hz
    Current Type AC
    Efficiency ≥95%
    Response Time ≤1.5S
    Ambient Temperature -15°C~+40°C
    Cooling Method Air-cooled
    Insulation Resistance ≥5MΩ
    Electrical Intensity Without breakdown and flashover phenomena at power frequency sine voltage 2000V for 1 min
    Overload Capacity Overload current (%) Duration (min)
    20 ≤60
    40 ≤15
    60 ≤5
    Waveform Distortion Non-lack fidelity waveform
    Protection Over-voltage, over-current, feed phases
    Protection Grade IP 24
    Warranty 12 months
    Certificate ISO9001:2008, CE
    Weight 120 Kg
    Package Size 370×340×790 (mm)
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    FAQ

    Q1: Can the output voltage be set to a value other than 380V?

    Yes. While 380V is the default standard output, this model can be factory-customized to provide a stable 415V or 480V output to meet specific regional or equipment requirements.

    Q2: Is this voltage stabilizer suitable for outdoor use?

    The unit features an IP24 protection level, meaning it is protected against solid objects larger than 12.5mm and water splashes from any direction. It is ideal for indoor industrial environments or sheltered outdoor installations, but is not designed for complete exposure to heavy rain or submersion.

    Q3: What makes this a "virtually maintenance-free" solution?

    Our voltage stabilizer is built with robust, industrial-grade components and a solid-state design that minimizes moving parts prone to wear. This engineering focus ensures long-term reliability and consistent performance with minimal need for servicing.

    1 review(s)
    5.0 1
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    Bryant | 6/10/2026 1:28 AM
    Industrial-Grade 8kVA 3-Phase Stabilizer
    This 8kVA 3-phase automatic voltage stabilizer works perfectly for our industrial equipment. With a wide 304V–456V input range and precise ±2-4% output accuracy, it completely eliminates voltage fluctuations. Response is rapid, and the built-in over-voltage/current protections keep operations highly secure and stable. Highly recommended!
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