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    Picture of 40 kVA Automatic Voltage Stabilizer, Single Phase, 110V~240V
    Picture of 40 kVA Automatic Voltage Stabilizer, Single Phase, 110V~240V
    Picture of 40 kVA Automatic Voltage Stabilizer, Single Phase, 110V~240V
    Picture of 40 kVA Automatic Voltage Stabilizer, Single Phase, 110V~240V
    Picture of 40 kVA Automatic Voltage Stabilizer, Single Phase, 110V~240V

    40 kVA Automatic Voltage Stabilizer, Single Phase, 110V~240V

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    SKU: PH-AVS-1P40K
    $2,912.31
    ● 40 kVA single-phase automatic voltage stabilizer for home and industrial use ● Wide input voltage range supports 95–125V / 190–250V AC ● Stable output voltage reaches 110V ±3% / 220V ±3% ● High efficiency design with fast response to voltage fluctuations ● LCD digital display for real-time voltage monitoring
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    Overview

    Designed to meet the stringent power quality requirements of small workshops, medium-sized commercial facilities, and large residential properties, this 40 kVA single-phase heavy-duty automatic voltage stabilizer is a robust line of defense against grid fluctuations, ensuring the continuous and stable operation of critical equipment. It utilizes high-performance industrial-grade relays and control circuits to rapidly respond (typical response time <1 second) and correct input voltage fluctuations from wide ranges of 95-125V or 190-250V, delivering a stable and precise 110V or 220V output.  It helps ensure safe and reliable operation of electrical equipment in both residential and industrial environments.

    40 kva automatic voltage stabilizer feature

    Feature

    • Precise Voltage Regulation: Maintains stable output voltage even during severe grid fluctuations, protecting sensitive electrical equipment from damage.
    • Fast Response & High Efficiency: Quickly corrects voltage changes with minimal delay while maintaining high operational efficiency.
    • Comprehensive Protection Functions: Built-in overload, overvoltage, overcurrent, and phase failure protection ensure long-term system safety.
    • Clear LCD Display: The LCD screen provides intuitive, real-time information on input/output voltage and operating status.
    • Reliable for Continuous Operation: Designed for continuous duty, making it suitable for appliances, machinery, and industrial loads.
     

    Details

    1. Cooling fan port
    2. Input voltage display
    3. Operating condition indicator
    4. Output voltage display
    40 kva automatic voltage stabilizer details
    Specs
    Capacity 40 kVA (The power capacity of the voltage stabilizer needs to be 1.5~2 times greater than the load power)
    Phase Single Phase
    Input Voltage Range ±15% tolerance of output voltage
    Output Voltage* 220V±3%/ 230V±3%/ 240V±3%/ 110V±3% (Optional)
    Adjust Time <1sec. (Against 10% input voltage deviation)
    Frequency 50Hz/60Hz
    Current Type AC
    Protection Over Voltage <246±4V
    Temperature Rise <60°C
    Ambient Temperature -10°C~+40°C
    Insulation Resistance ≥5MΩ
    Temperature Protection 110℃±10℃
    Relative Humidity <95%
    Wave Form Distortion No additional waveform distortion
    Load Power Factor 0.8
    Efficiency ≥90%
    Display LCD
    Protection Grade IP20
    Dielectric Strength 1500V/min
    Certification CE
    Warranty Period 12 months
    Weight 120 Kg
    Size 530*430*1020 mm

     

    Note: The provided 40 kVA voltage stabilizer is 1-phase (L, N, G) by European standard. We can customize the split phase (L1, L2 + G) like the USA standard, just confirm with us by email after ordering.

    Application
    Single-phase automatic voltage stabilizer for office equipment

    Office Equipment

    Single-phase automatic voltage stabilizer for smart refrigerators

    Smart Refrigerators

    Single-phase automatic voltage stabilizer for kitchen appliances

    Kitchen Appliances

    Single-phase automatic voltage stabilizer for washing machines

    Washing Machines

    FAQ

    Q1: Can a 40kVA voltage stabilizer power an entire small factory?

    Yes, but it requires careful load assessment and planning. 40kVA translates to a maximum continuous output power of approximately 32kW (considering power factor). This is sufficient to support a small workshop with several medium-sized machine tools (e.g., 5.5kW each), lighting systems, computers, and auxiliary equipment. The key is to calculate the total power of all equipment that may run simultaneously and leave a safety margin of at least 20%-30%. It is recommended to have an electrical engineer perform a detailed load list calculation before finalizing the decision.

    Q2: What is the purpose of "Phase Failure Protection" in a single-phase stabilizer?

    This is a critical safety feature. While this is a single-phase device, "Phase Failure Protection" here accurately functions as "Input Power Failure Protection". When the mains input is suddenly interrupted (e.g., fuse blow, grid failure), this function immediately activates, cutting off the stabilizer's output. This prevents potential damage to sensitive equipment that is switched on when power is restored, which might involve unstable or surging voltage. It ensures a safe and orderly process during power interruption and restoration.

    Q3: What should be considered when installing a 40kVA stabilizer?

    Installing a 40kVA unit is a professional electrical task that must be performed by a licensed electrician in strict compliance with local electrical codes. Key considerations include:

    • Incoming Wiring: Requires copper cables with sufficient cross-sectional area (e.g., potentially 70-95mm² depending on current draw) routed separately from the main distribution board.
    • Upstream Protection: Must be paired with a correctly rated circuit breaker or fuse switch for short-circuit and overload protection.
    • Installation Environment: Should be placed indoors in a well-ventilated, dry area free from flammable/explosive materials, with at least 80cm clearance on all sides for heat dissipation and maintenance.
    • Grounding System: Ensure the installation site has a proper grounding system, with ground resistance meeting safety standards.
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