Isolation Transformers

Protect your sensitive equipment with our high-performance isolation transformers designed for superior electrical isolation and noise reduction.

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Industrial Isolation Transformer

Why Choose Our Isolation Transformers?

Engineered for reliability and performance

Electrical Isolation

Our transformers provide complete galvanic isolation between primary and secondary circuits, eliminating ground loops and reducing electrical noise.

Equipment Protection

Shield sensitive medical, laboratory, and industrial equipment from power surges, spikes, and other electrical disturbances.

Noise Reduction

Significantly reduce common-mode noise and electromagnetic interference for cleaner power delivery to critical equipment.

Technical Specifications

Our isolation transformers are designed to meet the most demanding applications with robust construction and precise engineering.

Power Rating
500VA to 50kVA
Input Voltage
110V, 220V, 380V, 415V (custom available)
Output Voltage
Matches input or custom configurations
Frequency
50/60Hz
Isolation Voltage
Up to 4000V
Efficiency
>95% at full load

Common Applications

  • Medical Equipment: MRI machines, X-ray systems, patient monitors
  • Laboratory Instruments: Precision measurement devices, analytical equipment
  • Industrial Automation: PLCs, CNC machines, robotics
  • Data Centers: Server protection, network equipment
  • Telecommunications: Base stations, transmission equipment
  • Audio/Video: Professional recording studios, broadcast equipment

How Isolation Transformers Work

Understanding the technology behind electrical isolation

Isolation Transformer Diagram
1

Primary Winding

The input power connects to the primary winding, creating a magnetic field in the transformer core.

2

Magnetic Coupling

This magnetic field induces a voltage in the secondary winding without any direct electrical connection.

3

Secondary Winding

The isolated output power is drawn from the secondary winding, free from many common power quality issues.

4

Shielding

Additional electrostatic shielding between windings further reduces noise and transient coupling.

Isolation Transformer vs. Auto Transformer

Feature Isolation Transformer Auto Transformer
Electrical Isolation Complete isolation between input and output No isolation - input and output share common connection
Safety Protects against electric shock by breaking ground loops No protection against shock hazards
Noise Reduction Excellent noise isolation and reduction Minimal noise reduction
Voltage Transformation Can step up or step down voltage Can step up or step down voltage
Applications Sensitive equipment, medical, industrial, audio General purpose voltage conversion

Frequently Asked Questions

While all transformers provide some level of isolation, isolation transformers are specifically designed to maximize the electrical separation between primary and secondary circuits. They feature special shielding and insulation to minimize capacitive coupling and often have a 1:1 turns ratio (same input and output voltage) purely for isolation purposes.

To select the proper size isolation transformer:

  1. Calculate the total wattage of all equipment to be connected
  2. Add 20-30% capacity for safety margin and inrush currents
  3. Consider future expansion needs
  4. For motor loads, account for starting current which can be 3-6 times running current
  5. Our technical team can help with specific sizing recommendations

While isolation transformers provide excellent protection against many power quality issues, they are not specifically designed to protect against the extremely high voltages of direct lightning strikes. For complete lightning protection, we recommend using our isolation transformers in combination with proper surge protection devices (SPDs) and lightning arrestors.

Our isolation transformers are designed for minimal maintenance:

  • Periodic visual inspection for physical damage or overheating
  • Keep ventilation openings clear of dust and debris
  • Check terminal connections annually for tightness
  • Monitor for unusual noises or vibrations
  • In industrial environments, more frequent inspections may be needed

Most units can operate for years without any maintenance beyond these basic checks.

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