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Voltage Regulators/Stabilizers
  • New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator Price
  • New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator Price
  • New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator Price
  • New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator Price
  • New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator Price
New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator Price

New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator Price

  • 100 - 149 Pieces
    $39
  • >= 150 Pieces
    $30

Customization:

Customized logo（Min.Order: 300 pieces）
Customized packaging（Min.Order: 300 pieces）
Graphic customization（Min.Order: 300 pieces）
View product details

New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator Price

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Stable Voltage Regulation: Manually adjustable output voltage (0-300V AC) ensures consistent power delivery to protect sensitive equipment from voltage fluctuations.
  • Single-Phase Power Management: Designed for AC systems (220V input/output) to stabilize power in environments with unstable grid supply, supporting devices like appliances, tools, and industrial machinery.

Key features

  • 1. High-Efficiency Toroidal Transformer Core

    • Material Technology: With a high-efficiency toroidal transformer core, you can achieve 20% lower energy loss compared to conventional E-core designs*. This design ensures optimal power transfer and reduced heat generation, extending the device's longevity.

  • 2. Front-Mounted Voltage Meter for Manual Control

    • Interactive Design: With a front-mounted voltage meter and manual adjustment knob, you can precisely set output voltage in real-time—unlike automatic models that lack user customization*. Ideal for scenarios requiring manual intervention, such as testing or calibration.

  • 3. 3KVA Capacity for Multi-Appliance Use

    • Performance Parameters: With a 3KVA capacity, you can power multiple home appliances simultaneously—20% higher capacity than standard 2.5KVA models*. This ensures stable voltage delivery for devices like refrigerators, air conditioners, and entertainment systems.

  • 4. Home-Specific Voltage Protection

    • Scenario Solutions: Designed for home use, you can protect sensitive electronics from voltage fluctuations common in residential areas—ideal for safeguarding devices like TVs and computers*. The compact, heat-dissipating design also suits small commercial spaces.

  • 5. Built-in Safety Features for Compliance

    • Certification Standards: With built-in overload protection and circuit breakers, you can meet international safety standards for household appliances—ensuring reliability compared to uncertified alternatives*. These features prevent damage from power surges or overloads.

Product details

New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator Price

The New 3KVA Variac Variable Toroidal Transformer Manual Voltage Regulator is a robust, compact device designed to stabilize voltage output (0–300V AC) for single-phase AC systems. Crafted from durable aluminum/steel alloy, it features a beige/light brown body with a black top cover, ventilation slots for efficient heat dissipation, and safety mechanisms like overload protection. Ideal for homes, offices, and light industrial use, it ensures reliable power delivery to sensitive equipment in fluctuating grid conditions.

Technical specifications

FeatureSpecificationApplication Scenario
Material CompositionAluminum/Steel AlloyIndustrial/commercial environments
Voltage Regulation0–300V AC (manual adjustable)Labs needing precise voltage control
Heat DissipationOptimized ventilation slotsContinuous operation in high-temperature settings
Safety FeaturesAuto-cutoff at 150% overloadProtecting electronics during surges
Load Capacity3KVAHome workshops or small commercial setups

Customization guide

Adjustable voltage settings (0–300V) allow customization to match specific equipment requirements. The manual dial ensures precise control for varying power needs.

Get inspired

With its compact design and manual voltage adjustment, this regulator is perfect for home workshops, stabilizing power to tools and appliances. Its robust build and safety features also make it a reliable choice for small businesses facing unstable grid conditions.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Voltage Range0–300V0–345V (+15%)0–390V (+30%)
Load Capacity3KVA4KVA (+33%)5KVA (+66%)
Safety FeaturesBasicSurge ProtectionTriple Overload Protection

Supplier's note

  1. Technical Breakthroughs:

    • Extended Voltage Range: The Pro Model’s 0–390V capacity (+30% vs. Base) enables handling of high-demand industrial equipment.
    • Triple Overload Protection: The Pro’s enhanced safety ensures safe operation even in unstable grids.
    • 20% Faster Heat Dissipation: Optimized ventilation slots outperform traditional designs, prolonging device lifespan.

  2. Version Selection Guide:

    • Base Model: Ideal for home users needing 3KVA stability (e.g., powering home appliances).
    • Advanced Model: Suitable for commercial setups requiring surge protection (e.g., offices with fluctuating power).
    • Pro Model: Designed for industrial environments, offering 5KVA capacity and triple overload protection for heavy machinery.

With the Pro’s 390V range, you can safely power high-voltage tools. Pair its triple overload protection with optimized heat dissipation to ensure uninterrupted operation in harsh conditions. The Advanced Model’s surge protection makes it a cost-effective choice for small businesses.

Frequently asked questions

  • Which voltage regulator model is best for home use with a 3KVA capacity?

  • How do I maintain a manual voltage regulator for longevity?

  • Why choose a metal voltage regulator over plastic models?

  • Can I customize voltage settings on the SVC model for specific devices?

  • Is the 3KVA Variac FDA-approved or certified for safety?

  • Does the 3KVA Variac work with standard 220V AC systems?

  • What makes a toroidal transformer better for voltage regulation?

  • Can I use this voltage stabilizer for sensitive electronics like servers?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage Regulation AccuracySensitive Electronics (e.g., medical devices)±3% (Our Advanced) ▲
±5% (Our Base)
±10% (Industry Standard)		Ensures stable power for precision equipment (ISO 61000-4-11 compliance).Advanced version requires higher cost for ultra-precise control.
Noise LevelHome/Office Environments35 dBA (Our Advanced) ▲
40 dBA (Our Base)
45 dBA (Industry Standard)		Quieter than a refrigerator (40 dBA) for noise-sensitive spaces.Base model still meets residential standards but lacks premium quietness.
Heat Dissipation EfficiencyIndustrial/Continuous Use30°C rise (Our Advanced) ▲
35°C (Our Base)
40°C (Industry Standard)		Reduces overheating risks via advanced ventilation (IEC 60038 compliance).Advanced design may increase unit thickness slightly.
Safety FeaturesHigh-Risk Environments (e.g., factories)Overload + Short-Circuit Protection (UL Certified, Our Advanced) ▲
Overload Only (CE Certified, Our Base)		UL certification ensures compliance with global industrial safety norms.Base lacks short-circuit protection for extreme scenarios.
Compact DesignSpace-Constrained Settings (e.g., offices)30% smaller than conventional models (ISO 2240 size class)Toroidal core reduces footprint without sacrificing power (3KVA capacity).Toroidal design may limit future scalability compared to modular alternatives.
Material DurabilityHarsh Environments (e.g., workshops)Aluminum/Steel Construction (ASTM D638 rated) ▲
Plastic in some industry models		Resists corrosion and extreme temperatures (up to 85°C).Metal construction adds weight (15kg vs. 10kg for plastic models).

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