Medical Isolation Transformers
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Safe Power Solutions for Operating Rooms and Critical Healthcare Areas
In healthcare facilities, electrical failure is not merely an operational issue — it is a life safety risk.
Operating rooms, intensive care units, emergency departments, and other critical medical areas require electrical systems designed to prioritize patient protection and uninterrupted operation.
ESTA Medical Isolation Transformers are specifically engineered in accordance with IEC 61558-2-15 for medical IT systems.
Our objective:
- Minimize electric shock risk
- Control leakage current within strict limits
- Ensure safe and continuous operation of critical medical equipment
Electrical Scope
Power Range
3 kVA – 200 kVA
Voltage level
230 V / 400 V (custom configurations available)
Frequency
50 Hz / 60 Hz
Insulation class
Class F / Class H
Protection degree
IP21 – IP23 (optional higher ratings available)
Fully engineered-to-order solutions for hospital infrastructure projects.
What Is a Medical IT System?
A medical IT system is a power supply configuration where critical areas are fed through an isolation transformer, allowing the system to continue operating safely even in the event of a first insulation fault.
This system:
- Does not disconnect at the first fault
- Generates an alarm signal for maintenance intervention
- Maintains patient safety and operational continuity
ESTA isolation transformers are fully compatible with insulation monitoring devices (IMD) used in hospital installations.
Applications

Operating rooms

Intensive care units (ICU)

Angiography rooms

Dialysis centers

Emergency departments

Medical laboratories
Design Features
Low Leakage Current Design
- Compliant with IEC leakage current limits
- Optimized winding insulation
- Reduced capacitive coupling
Thermal Stability
- Stable performance under continuous load
- Low-loss magnetic core
- Extended insulation lifetime
Magnetic Field Control
- Reduced stray magnetic field
- Suitable for sensitive medical equipment environments
Low Noise Operation
- Low acoustic noise level
- Vibration-optimized construction
Engineering Capability
- Leakage current calculation
- Thermal modeling
- Magnetic field analysis
- Project-specific insulation coordination
- Integration with insulation monitoring devices
Each transformer is engineered according to the electrical design of the healthcare facility.
Standards & Compliance
- IEC 61558-2-15
- IEC 60364-7-710
- IEC 60076
- Medical IT system requirements
All units undergo strict quality control and testing procedures.
Operational Advantages
- Patient safety-focused design
- Low leakage current
- Reduced stray magnetic field
- Quiet operation
- Long service life
- Full IEC compliance
Why ESTA?
In medical environments, transformers are not merely power devices — they are components of a patient safety system.
ESTA combines engineering precision, regulatory compliance, and manufacturing reliability to deliver trusted solutions for hospital infrastructure worldwide.