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    Picture of 1 kVA Variac Transformer, Single Phase
    Picture of 1 kVA Variac Transformer, Single Phase
    Picture of 1 kVA Variac Transformer, Single Phase
    Picture of 1 kVA Variac Transformer, Single Phase
    Picture of 1 kVA Variac Transformer, Single Phase

    1 kVA Variac Transformer, Single Phase

    1 review(s) | Add your review
    SKU: PH-VT-1K
    $256.32
    ● Delivers 1000VA of continuous clean power. ● Engineered for high-inrush loads like motors and compressors. ● Field-selectable 110V or 220V AC input. Output continuously adjustable from 0-250V AC. ● Universal compatibility with global 50/60Hz power grids. ● Perfect for juicers, commercial TV displays, large refrigerators, and CNC printing systems.
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    Overview

    This 1 kVA single-phase variac transformer is a reliable and economical solution for precise AC voltage adjustment. Designed for stable performance and enhanced durability, this adjustable variac transformer delivers smooth and continuous voltage control for both household appliances and light industrial equipment. With selectable 110V or 220V input, the unit operates at 50Hz or 60Hz, making it adaptable to various international power standards. Its robust internal copper winding structure provides strong overload capability, ensuring safe operation during temporary load fluctuations. The 1 kVA model is widely used for voltage regulation of small appliances such as juicers, printers, televisions, and refrigerators, as well as for generator testing, workshop equipment adjustment, and electrical maintenance applications.

    1 kva single-phase variac voltage regulator feature

    Feature

    • Pure Electromagnetic Voltage Regulation: This variac operates on true variable transformer technology. Delivers smooth, stepless output voltage without waveform chopping or high-frequency interference.
    • Robust Construction for Continuous Duty: Built with a high-grade silicon steel core and quality copper windings. Engineered for lightweight, long operational life, and reliable performance as a generator line reactor.
    • Enhanced Overload Protection: Designed with strong overload capacity. Capable of handling equipment startup surges, reducing the risk of voltage drop-induced malfunctions.
    • Broad Application Compatibility: Universal 50/60Hz frequency support and selectable input voltages. Directly compatible with juicers, television sets, refrigeration units, printing equipment, and general testing environments.
     

    Details

    1. Imported Carbon Brushes: More precise adjustment, no power tripping, and longer service life.
    2. All-copper Coils: The full-power voltage regulator uses a sufficient amount of pure copper coils for more stable operation.
    3. Ventilation and Heat Dissipation Holes: The entire product is equipped with heat dissipation holes, ensuring stable operation and heat resistance.
    4. Standard Electronic Wire: High-temperature resistant electronic wire, multi-strand copper wire with an outer tin-plated layer, not easily oxidized.
    1 kva single-phase variac voltage regulator details
    Specs
    Phase 1-Phase
    Frequency 50/60Hz 60Hz
    Rated Input Voltage 220V 110V
    Rated Output Voltage 0~250V 0~130V
    Rated Capacity 1 kVA 1 kVA
    Max Output Current 3.2AA 6.1A
    Usage SVC
    Current Type AC
    Actual Output Current (Actual output voltage * rated current) / maximum output voltage
    Type Contact Type Regulators
    Dimension (440*245*450) mm
    Weight 6 kg

     

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

    Application
    Variac voltage regulator for machine speed control

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    Mechanical Voltage Boost

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    Current Control

    Variac voltage regulator for withstand voltage test

    Withstand Voltage Test

    FAQ

    Q1. What specific appliances can I power with this 1kVA variac?

    This 1kVA model is particularly well-suited for medium-draw household and commercial equipment. Common applications include juicers and blenders (preventing motor burnout during voltage dips), refrigerators and freezers (testing compressor startup under brownout conditions), TV sets and monitors (especially aging CRT units requiring gradual voltage ramp-up), and printers (stabilizing input to sensitive switching power supplies).

    Q2. How do I switch between 110V and 220V input? Does it auto-detect?

    No, this model requires manual selection. The unit features a clearly marked voltage selector switch or accessible terminal jumpers. Important: Always ensure the variac is completely disconnected from mains power before changing the input voltage setting. Connecting 220V while the unit is set to 110V mode will cause immediate and severe damage.

    Q3. Does "strong overload capacity" mean I can continuously exceed 1000VA?

    No. "Strong overload capacity" refers to the unit's ability to momentarily handle the high inrush currents common in motor-driven appliances (refrigerators, pumps, juicers) without damage. The continuous rated load is 1000VA (1kVA). You should not continuously operate the variac above its rated capacity. For continuous operation, keep your load within the 1000VA specification.

    1 review(s)
    5.0 1
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    jcorrell | 5/21/2026 1:43 AM
    Great Variac
    I bought this 1kVA variac transformer for voltage regulation, and the continuous adjustment is incredibly smooth. The dual input options are flexible, and it handles heavy motor loads with ease. Very reliable and highly recommended!
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