Product Overview

Defon Electronics manufactures high-performance EI isolation transformers designed to provide electrical isolation between input and output circuits, ensuring enhanced safety, signal integrity, and equipment protection.

Our isolation transformers are built with high-quality EI laminated cores and precision copper windings, delivering stable voltage output while effectively reducing electrical noise, surges, and interference.

They are widely used in industrial systems, medical equipment, laboratory instruments, communication systems, and sensitive electronic devices that require clean and isolated power.

We offer a wide VA range from low-power to industrial-grade applications, with full OEM/ODM customization available.

Key Features

  • Electrical isolation between primary and secondary circuits
  • High-quality EI laminated core construction
  • Effective noise and surge suppression
  • Stable and clean voltage output
  • High dielectric strength for enhanced safety
  • Low leakage current design
  • Multiple VA ratings available
  • OEM / ODM customization supported
  • Suitable for continuous industrial operation
  • RoHS compliant materials available

Applications

Isolation transformers are widely used in:

Medical Equipment

  • Diagnostic devices
  • Patient monitoring systems
  • Laboratory instruments
  • Medical imaging equipment

Industrial Control Systems

  • PLC systems
  • Automation equipment
  • Control panels
  • Factory machinery

Laboratory & Testing Equipment

  • Measurement instruments
  • Calibration systems
  • Research equipment
  • Precision test systems

Communication Systems

  • Signal processing equipment
  • Network systems
  • Telecommunication devices
  • Data transmission systems

Commercial & Sensitive Electronics

  • Audio equipment (noise reduction)
  • High-end electronic systems
  • Security systems
  • Precision electronic devices

Electrical Performance

  • Provides full galvanic isolation between input and output
  • Reduces electrical noise and electromagnetic interference
  • Stable voltage output under load conditions
  • High insulation resistance and dielectric strength
  • Low leakage current for sensitive applications
  • Reliable long-term operation in industrial environments

Customization Options

We provide full OEM/ODM customization:

  • Input voltage: 110V / 220V / 230V / 240V / 277V
  • Output voltage: single or multiple isolated outputs
  • Power rating: customized VA range
  • Frequency: 50Hz / 60Hz
  • Insulation class: B / F / H
  • Shielding layer options for noise reduction
  • Enclosure type: open frame / enclosed / chassis mount
  • Terminal / lead wire / connector design
  • Safety certification: UL / CE / ETL options
  • Private labeling for OEM customers

Why Defon Electronics

Defon Electronics is a professional manufacturer of EI isolation transformers with strong engineering capability and global export experience.

  • Strong OEM/ODM customization capability
  • Stable and consistent production quality
  • Fast engineering response for custom designs
  • Competitive factory pricing
  • Experience serving international industrial markets
  • Support for prototype and mass production

We provide reliable solutions for both standard and highly customized isolation power requirements.