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    Picture of 50 kVA Variac Transformer, Three Phase
    Picture of 50 kVA Variac Transformer, Three Phase
    Picture of 50 kVA Variac Transformer, Three Phase
    Picture of 50 kVA Variac Transformer, Three Phase

    50 kVA Variac Transformer, Three Phase

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    SKU: PH-VT-TH50K
    $5,462.78
    ● 50 kilowatt rated power, 65A rated current. ● 380V input voltage, 0~430/500V output voltage selectable. ● Durable metal enclosure, strong heat dissipation capacity. ● Responsive and accurate voltage output meter with pointer display. ● Strong electrical conductivity, low resistivity, and strong thermal conductivity. ● Easy to install and suitable for laboratories and a wide variety of application environments.
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    Overview

    Constructed with a robust metal casing, this 50 kVA industrial variac ensures excellent structural strength and enhanced heat dissipation performance. The optimized internal copper winding design offers strong electrical conductivity, low resistivity, and high thermal conductivity, ensuring efficient energy transfer and long-term operational reliability. Delivering up to 65A rated output current, this heavy-duty three-phase voltage regulator provides powerful and stable AC voltage control for high-demand industrial environments. It is easy to install and suitable for a wide range of heavy industrial scenarios.

    50 kVA three-phase variac transformer feature

    Feature

    • 65A Three-Phase Capacity: The 65A-rated current delivers substantial power for large-scale industrial applications, including heavy manufacturing, laboratory research, and so on.
    • Strong Heat Dissipation: Robust metal enclosure engineered for effective thermal management.
    • Superior Material Properties: Constructed with materials featuring strong electrical conductivity, low resistivity, and strong thermal conductivity.
    • Easy Installation Design: Engineered for straightforward mounting and setup across various occasions, from laboratory benches to industrial panels. Simplifies integration into existing power control systems.
     

    Details

    1. Input Terminal Port
    2. Output Terminal Port
    3. Rotary Handle
    4. Carrying Handle
    5. Premium Carbon Brush
    6. Pure Copper Coil
    50 kVA three-phase variac transformer details
    Specs
    Phase 3-Phase
    Rated Power 50 kVA
    Input Voltage 380V
    Output Voltage 0~430V; 0~500V
    Frequency 50/60 Hz
    Rated Full Offset Current 65A
    Insulation Resistance ≥5 MΩ
    Pressure Resistance 2000 V/1min
    Certificate CE
    Dimension (345Ă—450Ă—1100) mm
    Weight 220 kg
    Application
    Variac voltage regulator for machine speed control

    Machine Speed Control

    Variac voltage regulator for mechanical voltage boost

    Mechanical Voltage Boost

    Variac voltage regulator for current control

    Current Control

    Variac voltage regulator for withstand voltage test

    Withstand Voltage Test

    FAQ

    Q1. How does the metal casing's strong heat dissipation capacity benefit continuous 50kW operation?

    At 50kW continuous load, internal heat generation is substantial. The metal casing's strong heat dissipation capacity provides:

    • Efficient thermal transfer—metal acts as a heat sink, drawing heat away from windings.
    • Reduced hot spots—even heat distribution prevents localized overheating.
    • Extended component life—lower operating temperatures preserve insulation and materials.
    • Stable performance—maintains consistent electrical characteristics by minimizing thermal drift. This thermal management is essential for reliable 65A continuous duty. 

    Q2. What are the advantages of the responsive pointer meter compared to digital displays in industrial settings?

    The analog pointer meter offers specific benefits: 

    • Trend visibility—pointer movement shows voltage changes dynamically during adjustment.
    • No power required—operates independently of internal electronics.
    • Industrial durability—less susceptible to electrical noise and interference.
    • Immediate response—real-time indication without digital sampling delays.
    • Familiar interface—preferred by many experienced technicians for quick visual reference. The responsive and accurate pointer ensures reliable monitoring.
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