3-Phase IT Isolation Transformer Control Cabinet for Hospital Applications

What is a 3-Phase Medical IT Isolation Transformer?

In healthcare facilities, especially operating rooms, intensive care units (ICUs) and emergency rooms, electrical safety is of paramount importance.

The 3-phase Medical IT (Isolated Ground) system isolates sensitive medical equipment from the public grid, minimizing the risk of electric shock to patients and staff.

Unlike standard TN or TT systems, the IT configuration ensures that there is no direct metallic connection between the neutral and ground, creating a floating system that limits fault currents.

Key Benefits

Enhanced Patient Safety

Reduces residual leakage current to ≤10µA, well below the 50µA danger threshold for direct cardiac applications.

Continuous insulation resistance monitoring (via built-in metering) alerts staff before faults escalate.

Uninterruptible Power Supply

Allows single-phase-to-ground faults to persist without triggering automatic shutdown, critical for life support systems.

Dual redundant cooling fans and overload protection prevent thermal stress during extended use.

Harsh Environments

A wide input voltage range (380V–480V AC) accommodates grid instability common in developing regions.

The IP54-rated enclosure resists dust, moisture, and shock, making it ideal for tropical climates such as Honduras.

Simplified Maintenance

Front-access terminals and modular components reduce downtime during repairs.

LED status indicators and audible alarms provide instant fault diagnosis.

Technical specifications

Other applicable scenarios

Laboratory: Protect sensitive equipment (e.g. MRI, mass spectrometer) from grid noise.

High-end manufacturing: Ensure stable power supply for semiconductor manufacturing or robotics.

Data center: Prevent downtime caused by insulation failure in server racks.

Maritime applications: Protect against salt corrosion and voltage fluctuations on offshore platforms.