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    Picture of 3 kVA Variac Transformer, Three Phase
    Picture of 3 kVA Variac Transformer, Three Phase
    Picture of 3 kVA Variac Transformer, Three Phase
    Picture of 3 kVA Variac Transformer, Three Phase
    Picture of 3 kVA Variac Transformer, Three Phase

    3 kVA Variac Transformer, Three Phase

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    SKU: PH-VT-TH3K
    $948.59
    ● 3-phase variac transformer, 3 kVA rated capacity. ● With an ON/OFF power switch for safe and convenient operation. ● Rated input voltage 380V; output voltage continuously adjustable from 0 to 430V. ● Rated output current 4A for stable, controlled power delivery. ● Built-in overvoltage protection safeguards connected equipment from voltage spikes.
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    Overview

    With a rated output current of 4A and an adjustable output range from 0ā€“430V (optional 0ā€“500V), this three-phase adjustable autotransformer meets the needs of medium-load industrial equipment and testing applications. Equipped with an integrated ON/OFF power switch and overvoltage protection, this 3-phase AC voltage regulator enhances operational safety and protects connected equipment. The clear voltage output meter allows accurate monitoring, while the metal pressure gauge ensures precise voltage adjustment. The enclosure features uniform ventilation holes for efficient heat dissipation, preventing overheating during continuous operation. Finished with a durable painted shell, this 3 kVA industrial variac transformer resists fading and corrosion, ensuring long service life in industrial environments.

    3 kVA three-phase variac transformer feature

    Feature

    • Adjustable 0ā€“430V Three-Phase Output: This 3 kVA three-phase variac transformer delivers a wide, continuously variable output voltage range of 0 to 430V from a 380V-rated input.
    • Built-In Overvoltage Protection: Equipped with integrated overvoltage protection, this 3-phase variac transformer automatically guards connected equipment against potentially damaging voltage surges.
    • Heat Dissipation Design: The housing features uniformly distributed ventilation and heat dissipation holes that promote consistent airflow throughout the unit during continuous operation.
    • On/Off Power Switch: A dedicated on/off power supply switch gives operators direct control over the unit, making startup and shutdown safer and more convenient.
     

    Details

    1. Wheel-Axis Design: Precisely aligned and finely calibrated for smooth, ergonomic operation.
    2. Pointer Meter: Clear scale graduations for accurate, intuitive readings at a glance.
    3. Pure Copper Coil: Superior conductivity, enhanced durability, and extended service life.
    4. Porous Heat Dissipation Housing: Effective multi-vent cooling prevents overheating and protects the transformer during continuous operation.
    3 kVA three-phase variac transformer details

    3 kVA Three-phase Variac Transformer Wiring Diagram

    3 kVA three-phase variac transformer wiring diagram

    Specs
    Phase 3-Phase
    Rated Power 3 kVA
    Input Voltage 380V
    Output Voltage 0~430V; 0~500V
    Frequency 50/60 Hz
    Rated Full Offset Current 4A
    Insulation Resistance ā‰„5 MĪ©
    Pressure Resistance 2000 V/1min
    Certificate CE
    Dimension (240Ɨ170Ɨ430) mm
    Weight 19 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: What safety features does this 3 kVA three-phase variac transformer include?

    This 3-phase variable transformer is equipped with built-in overvoltage protection to shield connected equipment from voltage spikes, as well as an on/off power switch for safe and controlled operation. The uniform heat dissipation holes further protect the unit by preventing overheating during extended use.

    Q2: How can I monitor the output voltage on this 3-phase variac transformer?

    The unit includes a clear voltage output meter and an accurate metal pressure gauge, allowing operators to easily read and monitor output voltage in real time ā€” ensuring precise voltage regulation throughout operation.

    Q3: What is the output voltage range of this 3 kVA variable transformer?

    This three-phase variac transformer offers a continuously adjustable output voltage range of 0 to 430V, with a rated input voltage of 380V and a rated output current of 4A ā€” making it suitable for a wide range of industrial, laboratory, and commercial power supply applications.

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