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    Picture of 40 kVA Variac Transformer, Three Phase
    Picture of 40 kVA Variac Transformer, Three Phase
    Picture of 40 kVA Variac Transformer, Three Phase
    Picture of 40 kVA Variac Transformer, Three Phase

    40 kVA Variac Transformer, Three Phase

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    SKU: PH-VT-TH40K
    $3,989.59
    ● 40kVA rated power, 52 Amp rated current. ● 380V input, output selectable 0-430V AC or 0-500V AC, adjust from 0 to high. ● Built-in copper wires are densely arranged for enhanced performance and reliability. ● Protective painted enclosure extends service life and provides corrosion resistance. ● Low price intelligent 3-phase variac with voltage regulation function.
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    Overview

    Powerhome's 40 kVA 3-phase variac transformer delivers a powerful 52A-rated output current. Engineered with densely arranged copper windings, this industrial variable autotransformer ensures superior conductivity, reduced energy loss, and enhanced thermal stability under continuous heavy load. The stepless voltage adjustment mechanism allows smooth output increase from 0 up to 430V or optional 500V, meeting diverse industrial power requirements. The durable painted metal enclosure protects internal components and extends operational lifespan, making this variac ideal for harsh factory environments.

    40 kVA three-phase variac transformer feature

    Feature

    • 52A Maximum Industrial Capacity: The 52 Amp rated current delivers the highest capacity in the series, suitable for large-scale industrial infrastructure, major manufacturing facilities, and heavy-duty commercial power control.
    • Dense Copper Wire Arrangement: Built-in copper windings feature a dense, precision-wound configuration. This optimized arrangement enhances electrical conductivity and reduces hot spots. 
    • Painted Shell: A protective painted enclosure provides corrosion resistance and durability in industrial environments.
    • Voltage Regulation Function: Core voltage regulation capability for precise control of three-phase AC power across diverse industrial applications.
     

    Details

    1. Input Terminal Port
    2. Output Terminal Port
    3. Rotary Handle
    4. Carrying Handle
    5. Premium Carbon Brush
    6. Pure Copper Coil
    40 kVA three-phase variac transformer details
    Specs
    Phase 3-Phase
    Rated Power 40 kVA
    Input Voltage 380V
    Output Voltage 0~430V; 0~500V
    Frequency 50/60 Hz
    Rated Full Offset Current 52A
    Insulation Resistance ā‰„5 MĪ©
    Pressure Resistance 2000 V/1min
    Certificate CE
    Dimension (345Ɨ450Ɨ1100) mm
    Weight 160 kg
    Application
    Variac voltage regulator for machine speed control

    Machine Speed Control

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    Mechanical Voltage Boost

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    Current Control

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    Withstand Voltage Test

    FAQ

    Q1: How is the output voltage adjusted on this 40 kVA three-phase variac transformer?

    The output voltage on this three-phase variable transformer is adjusted starting from 0 and increasing to the desired level, with a selectable maximum of either 430V or 500V from a 380V-rated input. This smooth, graduated adjustment capability gives operators precise control over power delivery across the full output range.

    Q2: What is the significance of the densely arranged copper wiring in this variac transformer?

    The densely arranged copper wires inside this 40 kVA three-phase variac voltage regulator are designed to maximize electrical conductivity and minimize internal resistance. This results in more efficient power transmission, lower heat buildup during operation, and a more stable, reliable output ā€” contributing directly to the unit's long-term performance and service life.

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