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    Picture of 15 kVA Variac Transformer, Single Phase
    Picture of 15 kVA Variac Transformer, Single Phase
    Picture of 15 kVA Variac Transformer, Single Phase

    15 kVA Variac Transformer, Single Phase

    1 review(s) | Add your review
    SKU: PH-VT-15K
    $2,079.09
    ● Substantial 15 kVA rated capacity with a maximum output current of 48A. ● Specifically configured for 220V rated input voltage and 50Hz working frequency. ● Delivers 48A rated output current across the 0-250V adjustment range. ● Direct sale by the factory eliminates intermediaries. ● Good performance at accessible pricing with streamlined ordering and support.
    đźšš Free shipping
    ⏱️ Delivery: 6-12 days
    đź”™ 30-day Returns
    Overview

    The 15 kVA single-phase variac transformer is a high-power adjustable AC voltage regulator engineered for industrial environments requiring stable and high-current output. With a Max. output current of 48A, this heavy-duty variable autotransformer provides reliable voltage control for generator systems, industrial production lines, and power distribution testing. Its optimized internal copper winding structure improves conductivity and minimizes energy loss, making the 15 kVA variac a dependable solution for long-term operation. The robust metal housing enhances mechanical strength while assisting heat dissipation during high-load operation. As a professional-grade industrial variac voltage regulator, this model supports stable performance in 50Hz power supply environments and can be customized to meet special capacity requirements.

    Specification

    Phase 1-Phase
    Rated Capacity 15 kVA
    Rated Input Voltage 220V
    Rated Output Voltage 0~250V
    Frequency 50/60Hz
    Max Output Current 48A
    Usage SVC
    Current Type AC
    Type Contact Type Regulators
    Actual Output Current (Actual output voltage * rated current) / maximum output voltage
    Dimension (LĂ—WĂ—H) (370*310*640) mm
    Weight 46 kg

     

    Note: Support the split phase (L1, L2+N, G). Please contact us.

    Details
    15 kVA single-phase variac transformer feature

    Feature

    • 48A Extreme Current Capacity: The 48A-rated output current positions this unit for most powering large-scale machinery, industrial heating systems, high-power rectifier banks, and substantial sections of facility lighting or production lines.
    • Generator Output Optimization: Purpose-engineered for 220V 50Hz generator systems. Enables precise voltage regulation of large generator output before distribution to sensitive equipment, variable-speed drives, or synchronized multiple loads.
    • Smooth Pressure Regulation Mechanism: Advanced carbon brush and commutator engineering deliver seamless 0-250V adjustment.
    • Long Life High Quality Construction: Built for extended service life in demanding power supply places. Robust materials and quality workmanship ensure reliable performance over the years.
     
    1. Hand wheel
    2. Instrument panel
    3. Housing
    4. Basing
    5. Handrail
    6. Voltage meter
    7. Groundwire position
    8. Reactor protective housing
    15 kVA single-phase variac transformer details


    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

    Q. What specific large-scale generator applications require the 48A capacity of this 15kVA variac?

    The 48A/15kVA capacity is essential for: 

    • Large standby generator systems—regulating output for entire commercial building sections.
    • Industrial backup power—stabilizing voltage for manufacturing lines during grid outages.
    • Generator load bank testing—simulating substantial loads up to 15kVA for commissioning and maintenance.
    • Off-grid industrial facilities—controlling power distribution from primary generation sources.
    • Multiple high-draw equipment—simultaneously powering several large motors, heaters, or rectifiers from a single regulated supply.
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    1 review(s)
    5.0 1
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    Ansel | 9/16/2026 2:39 AM
    Heavy-Duty 15 kVA Variac Transformer for Serious Shop Power
    Bought this 15 kVA single-phase variac transformer to regulate voltage on our production equipment. Handles up to 48A smoothly without overheating. The 0–250V adjustment range is precise, and the dial movement feels solid. Built like a tank with a rugged metal casing. Excellent industrial variable autotransformer for the price!
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