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500,000+
Articles in total range
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IEC 60601
Medical electrical safety standard
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Gr. 1+2
Medical application classes
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B2B
Professional trade only
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Electrical Isolation in Medical Technology – Patient Protection by Standard
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Electrical isolators for medical technology are components and systems that deliberately interrupt galvanic connections between circuits – without blocking the functional signal or energy transfer. In clinical environments, they prevent leakage currents, potential transfer and device-internal interference from entering the human body via patient-connected electrodes, probes or catheters. Even AC currents in the microampere range can trigger ventricular fibrillation when applied via direct cardiac catheters – electrical isolation is therefore not optional but a mandatory regulatory requirement. The governing standard is IEC 60601-1(EN 60601-1): Medical Electrical Equipment – General Requirements for Basic Safety and Essential Performance. It defines two protection paths: MOPP(Means of Protection from Patient) protects the patient from hazardous voltages generated by the device; MOOP(Means of Protection from Operator) protects operating personnel. Application class (Group 1 or 2) and insulation type (basic, double or reinforced) determine the required creepage distances, air clearances and insulation ratings. Technical sales: +49 (0)7666 / 88499-0 | sales@industry-electronics.com |
Regulatory Standards
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ZPA connection cable STD 6 mm² / 4 m
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⚡ CPE – Central Potential Equalisation in Medical Locations
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Mandatory per IEC 60364-7-710 / DIN VDE 0100-710: In Group 1 and Group 2 medical locations, a Central Protective Equipotential Bonding (CPE) system is mandatory. All conductive parts – enclosures, beds, infusion stands, pipework – are connected to a common bonding conductor (max. 0.1 Ωresistance) and protective earth. Purpose: fault currents cannot flow through the patient.
Group 1(X-ray, physiotherapy): leakage < 500 µA · Group 2(OR, ICU, cardiac cath lab): leakage < 10 µA · Inspection intervals: STKannually by qualified electrician, MTKevery 2 years by authorised inspector. |
⚡ Application Areas for Electrical Isolation Components
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OR & Intensive Care
Group-2 locations: IT networks with monitoring, 2-MOPP power supplies, CPE with < 10 µA leakage. |
Imaging & Diagnostics
X-ray, CT, MRI: Group-1 requirements, leakage current limitation, insulation testing per IEC 60601. |
GP Practice & Outpatient
Minor procedures, ECG, ultrasound: isolation between mains and patient monitoring systems. |
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Laboratory & IVD
Analysers, PCR systems: galvanic isolation prevents measurement interference from earth loops. |
OEM Medical Device Mfg.
Isolation components as device sub-assembly: certification evidence per EU MDR and IEC 60601-1. |
Related Categories
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Medical Power Supplies
IEC-60601-1 PSUs (2 MOPP/1 MOPP) – complement isolation components in the complete system. |
Insulation Testers
Test equipment for STK/MTK inspections: leakage current, insulation resistance, protective earth per IEC 62353. |
Medical PC Components
IEC-60601-compatible industrial hardware for clinical systems and embedded medical devices. |
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Medical Technology – Overview
All product areas for medical use at a glance. |
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MOPP Reference
< 300 µA: MOOP (operator) · < 100 µA: 1 MOPP · < 10 µA: 2 MOPP (direct patient contact). PSUs and isolation must match the required protection level. |
OEM & Project Orders
Framework agreements, component reservation, and certification documentation on request for device manufacturers. |
Technical Advice
+49 (0)7666 / 88499-0 |