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    Picture of 5 kVA Variac Transformer, Single Phase
    Picture of 5 kVA Variac Transformer, Single Phase
    Picture of 5 kVA Variac Transformer, Single Phase

    5 kVA Variac Transformer, Single Phase

    1 review(s) | Add your review
    SKU: PH-VT-5K
    $758.65
    ● 5,000VA rated capacity with a maximum output current of 16A. ● Built with all-copper coils throughout. ● Specifically configured for 220V rated input voltage and 50Hz working frequency. ● Ideal for regulating output from standby generators, providing stable, adjustable AC to connected equipment. ● Maximizes electrical conductivity, minimizes energy losses, and ensures cooler operation under sustained 5kVA continuous load.
    🚚 Free shipping
    ⏱️ Delivery: 6-12 days
    🔙 30-day Returns
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    Overview

    Powerhome's 5 kVA single-phase variac voltage regulator is a high-capacity adjustable AC voltage control solution designed for generator systems and industrial load applications. With a stable 16A Max. output current, this variac transformer delivers reliable voltage regulation for medium to large electrical equipment. Built with 100% copper coils and imported carbon brushes, the internal structure ensures excellent electrical conductivity, reduced energy loss, and extended service life. Its robust construction and high-quality workmanship make it suitable for continuous operation in demanding environments.

    5 kVA single-phase variac transformer feature

    Feature

    • 16A High-Current Continuous Capacity: Delivers 16A rated output current across the 0-250V adjustment range. Provides substantial headroom for starting large motors, powering multiple devices simultaneously, or driving high-current experimental apparatus.
    • Generator-Ready Voltage Regulation: Purpose-suited for 220V 50/60Hz generator outputs. Enables precise voltage control of generator power before distribution to sensitive equipment or variable-speed machinery. 
    • Industrial-Grade All-Copper Winding: 100% copper coil construction throughout the magnetic circuit, directly contributing to longer service life and better protection for connected devices.
    • Extended-Lifespan Carbon Brush System: Premium carbon brush technology ensures consistent, low-sparking contact with the commutator. Maintains smooth 0-250V adjustment and excellent electrical conductivity over thousands of operating cycles.
     

    Details

    1. Axle Design: Enhanced axle precision with optimized calibration, featuring an ergonomic design for effortless operation.
    2. Multi-Ventilation Cooling: Effectively prevents damage caused by excessive temperature during regulator operation.
    3. Analog Pointer Meter: Clearer, more intuitive scale markings for simplified usage.
    4. Premium Carbon Brush: Utilizes high-quality carbon brushes for extended service life.
    5 kVA single-phase variac transformer details

    5 kVA Single-phase Variac Transformer Wiring Diagram

    5 kVA single-phase variac transformer wiring diagram

    Specs
    Phase 1-Phase
    Rated Capacity 5 kVA
    Rated Input Voltage 220V
    Rated Output Voltage 0~250V
    Frequency 50/60Hz
    Max Output Current 16A
    Usage SVC
    Current Type AC
    Type Contact Type Regulators
    Actual Output Current (Actual output voltage * rated current) / maximum output voltage
    Dimension (L×W×H) (330*270*310) mm
    Weight 15.6 kg

     

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

    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: Can this 5 kVA variac voltage regulator be used with a generator?

    Yes. This single-phase variac transformer is specifically suitable for adjusting and stabilizing generator voltage within its rated capacity.

    Q2: What makes the 5 kVA model different from lower-capacity units?

    The 5 kVA variac provides a higher 16A output current and greater load-handling capability, making it more suitable for industrial and medium-duty applications.

    Q3: Is the output voltage continuously adjustable?

    Yes. The 0–250V output range allows smooth and stepless voltage regulation for precise AC power control.

    1 review(s)
    5.0 1
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    Alexander | 7/21/2026 12:52 AM
    This Variac's a Beast – Handles My Whole Workshop Without Breaking a SweatThis Variac's a Beast – Handles My Whole Workshop Without Breaking a Sweat
    Picked this up for my garage workshop after I got tired of dealing with voltage swings from my old generator. The 16A capacity is plenty for running multiple tools at once, and the adjustment is super smooth – no jerky jumps or flickering when I'm dialing in the right voltage. The analog meter is clear and easy to read at a glance, and the whole thing feels built to last – all-copper windings, good ventilation, stays cool even after hours of use. It's heavy, but that's what you want in something this solid. If you're running a shop or dealing with finicky equipment that needs clean, adjustable power, this thing's worth every penny. No complaints at all.
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