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  • 12 0 12 Transformer Transformer 220v to 380v
  • 12 0 12 Transformer Transformer 220v to 380v
  • 12 0 12 Transformer Transformer 220v to 380v
  • 12 0 12 Transformer Transformer 220v to 380v
  • 12 0 12 Transformer Transformer 220v to 380v
  • 12 0 12 Transformer Transformer 220v to 380v
12 0 12 Transformer Transformer 220v to 380v

12 0 12 Transformer Transformer 220v to 380v

  • 1 - 9 Pieces
    $7.70
  • 10 - 1999 Pieces
    $7.60
  • >= 2000 Pieces
    $7

12 0 12 Transformer Transformer 220v to 380v

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Voltage Conversion Efficiency: Designed as an autotransformer with an EI core structure to efficiently adjust AC voltage between 220V and 380V, while supporting additional outputs of 36V and 12V for versatile power requirements.
  • Durability and Safety: Built with copper windings and a laminated steel core for minimal energy loss and optimal heat dissipation, ensuring reliable performance in demanding environments.

Key features

  • 1. Material Technology

  • With copper windings and laminated steel core construction, achieve superior conductivity and reduced energy loss compared to aluminum-based transformers*. The robust metal housing ensures durability in industrial or commercial environments.

  • 2. Interactive Design

  • With multiple color-coded secondary windings, easily configure outputs for up to 4 voltage levels (380V, 36V, 12V, 220V), offering greater flexibility than single-output models*. The EI coil structure enhances stability and efficiency during voltage conversion.

  • 3. Performance Parameters

  • With a single-phase design supporting 50-60Hz frequency, maintain stable operation across global power standards, ensuring compatibility with most devices*. The autotransformer configuration allows seamless voltage adjustment between 220V and 380V inputs.

  • 4. Scenario Solutions

  • With compact dimensions and robust metal housing, install in space-constrained environments while maintaining durability for continuous commercial or industrial use*. The versatile output voltages (e.g., 12V for low-power devices, 380V for heavy machinery) adapt to diverse applications.

  • 5. Certification Standards

  • With CE certification compliance, meet EU safety and environmental regulations, enhancing trust for professional and residential applications*. The design adheres to strict quality controls for reliable power distribution.

Product details

12 0 12 Transformer Transformer 220v to 380v

The 12 0 12 Auto Transformer (220V to 380V) is a versatile single-phase auto-transformer designed for voltage conversion in industrial, commercial, and residential applications. Constructed with a durable EI-laminated steel core and copper windings, it ensures high efficiency and minimal energy loss. Certified to CE standards, this transformer supports multiple output voltages (380V, 36V, 12V, 220V) through its multi-tap design, offering flexibility for diverse power requirements.

Technical specifications

FeatureSpecificationBenefit
MaterialCopper windings, EI-laminated steel coreHigh conductivity and reduced magnetic loss
Voltage RangeInput: 220V/380VOutput: 12V/36V/220V/380V
Coil StructureEI-laminated coreMinimizes eddy current losses
PhaseSingle phaseIdeal for residential and light industrial use
TypeAuto-transformerEfficient voltage regulation with fewer windings
CertificationCE-compliantEnsures safety and compliance with EU standards

Customization guide

Adjustable voltage taps allow customization of output voltages to meet specific application needs. For high-current scenarios, request thicker copper windings. Housing material (e.g., aluminum for lightweight applications) can be modified based on environmental conditions.

Get inspired

With its multi-voltage capability, this transformer is perfect for powering appliances, lighting systems, or machinery that require stepped-up or stepped-down voltages. Its compact EI-core design saves space while maintaining robust performance.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Efficiency92%+15% (99.8%)+30% (98.5%)*
Voltage Range220V ↔ 380VExtended 110V–415VUniversal 100V–480V
Durability10,000 hours20,000 hours30,000 hours
Load Capacity1kVA3kVA5kVA

Supplier's note

  1. Technical Breakthroughs:

    • EI Core Design: Reduces energy loss by 20% compared to traditional cores.
    • Copper Windings: Achieves 30% lower resistance than aluminum, ensuring stable power delivery.
    • CE Compliance: Meets EU safety standards for reduced electromagnetic interference.
  2. Version Selection Guide:

    • Base Model: Ideal for small workshops or home use where basic voltage conversion (e.g., 220V to 380V) is sufficient.
    • Advanced Model: Suitable for commercial applications (e.g., HVAC systems) requiring extended voltage ranges and higher efficiency.
    • Pro Model: Designed for industrial settings with heavy loads (e.g., machinery) needing universal voltage compatibility and long-term durability.

*Pro Model efficiency gain refers to reduced energy loss compared to Base Model.

Frequently asked questions

  • Which auto transformer is best suited for converting 220V to 380V in industrial power applications?

  • How do I maintain a copper-wound auto transformer for long-term reliability?

  • Copper vs. aluminum windings: Which is better for an auto transformer’s durability?

  • Can the Hengtong 12 0 12 transformer be customized for specific voltage outputs?

  • Is the Hengtong 12 0 12 transformer CE-certified for safety compliance?

  • What applications suit a 220V to 380V auto transformer with multiple outputs?

  • How does the EI core design improve efficiency in this transformer?

  • Can this transformer handle single-phase loads in home appliances?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage Conversion RangeIndustrial equipment, lab devicesIndustry: 220V-12V only (IEC 60076)
Base: 220V-380V/12V/36V/220V (IEC 61800-3)
Advanced: ±5% output stability (IEC 61800-3)
▲ Supports 4 voltage outputs (vs Industry’s 2)
▲▲ ±5% precision (Advanced)
Base: Requires complex wiring setups for multiple outputs
Coil Structure (EI Core)High-efficiency applicationsIndustry: EI laminations (ASTM A36)
Base: 0.35mm EI laminations (ASTM A36)
Advanced: 0.25mm EI laminations (ASTM A1011)
▲ 15% lower core losses (Base vs Industry)
▲▲ 25% lower losses (Advanced)
Heavier than toroidal cores; limited space adaptability
Material QualityHarsh environments (chemicals/moisture)Industry: Aluminum or low-grade copper
Base: 99.9% copper (ASTM B117 salt spray test)
Advanced: Oxygen-free copper (ASTM B115)
▲ 30% better conductivity (Base vs Industry)
▲▲ 50% corrosion resistance (Advanced)
Base: 15% higher cost vs aluminum
Advanced: 30% premium cost
EfficiencyData centers, energy-sensitive systemsIndustry: 85-90% (IEC 60076-7)
Base: 90% (IEC 60076-7)
Advanced: 95% (IEC 60076-7)
▲ 5% energy savings (Base vs Industry)
▲▲ 10% savings (Advanced)
Advanced requires premium-grade components for high efficiency
Noise LevelOffice/residential useIndustry: 45 dBA (ISO 3744)
Base: 40 dBA (▲)
Advanced: 35 dBA (▲▲)
▲ Quieter than a refrigerator (Base)
▲▲ Quieter than a whisper (Advanced)
Advanced design increases weight and manufacturing complexity
Customization OptionsCustom industrial setupsIndustry: Standard models only
Base: Adjustable taps (▲)
Advanced: Custom windings/voltages (▲▲)
▲▲ Tailored for niche applications (e.g., 48V robotics)
▲ Reduces downtime
Advanced requires 2x longer lead times

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