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EN & IEC 60601 Testing

EN or IEC 60601 is the European harmonized standard to meet the Medical Device Directive. EN 60601 applies to the basic safety and essential performance of medical electrical equipment and medical electrical systems. While this standard is broadly considered all encompassing, it is important to note that in addition to EN 60601, there are dozens of additional standards that address unique features and characteristics of medical devices. Please contact Keystone Compliance for more information on which standards might apply to a specific medical device. The testing completed under EN 60601 includes the following:

  • Electro-static Discharge
  • Radiated Immunity
  • Fast Transient
  • Surge
  • Conducted Immunity
  • Power Frequency Magnetic Fields (voltage dips, interruptions and variations)

There are several clauses within EN 60601 that require increased attention. One of these clauses states, “the essential performance of equipment and systems shall be identified by a risk analysis. If the risk analysis is not performed, all functions of the equipment or system shall be considered essential performance for the purpose of immunity testing.” Essential performance is defined in the standard as “performance characteristics necessary to maintain the Residual Risk within acceptable limits”. Essential performance should be determined by a risk analysis. If a risk analysis is not completed, all functions of the medical device shall be considered essential.

It should be noted that EN 60601 places the burden of determining pass or fail on the device manufacturer, not the EMC test lab, since ultimately the medical device manufacturer determines which functions are essential performance.

EN 60601 presents unique challenges to medical device manufacturers. Partnering with Keystone Compliance early on during the design phase can alleviate many of those challenges. Please contact us for more information on how Keystone Compliance can assist you with identifying and fulfilling your EN 60601 needs.


IEC 60417:Graphical symbols for use on equipment
IEC 60601-1:2005 Medical electrical equipment – Part 1: General requirements for basic safety and essential performance
IEC 60601-1-8:2006 Medical electrical equipment – Part 1-8: General requirements for basic safety and essential performance – Collateral standard: General requirements, tests and guidance for alarm systems in medical electrical equipment and medical electrical systems
IEC 61000-3-2, Electromagnetic compatibility (EMC) – Part 3-2Limits – Limits for harmonic current emissions (equipment input current ? 16 A per phase)
IEC 61000-3-3, Electromagnetic compatibility (EMC) – Part 3-3:Limits – Limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current ? 16 A
IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4-2:Testing and measurement techniques – Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3:Testing and measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4-4:Testing and measurement techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5:Testing and measurement techniques – Surge immunity test
IEC 61000-4-6:2003, Electromagnetic compatibility (EMC) – Part 4-6:Testing and measurement techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-8, Electromagnetic compatibility (EMC) – Part 4-8:Testing and measurement techniques – Power frequency magnetic field immunity test
IEC 61000-4-11, Electromagnetic compatibility (EMC) – Part 4-11:Testing and measuring techniques – Voltage dips, short interruptions and voltage variations immunity tests
CISPR 11:Industrial, scientific and medical (ISM) radio-frequency equipment – Electromagnetic disturbance characteristics – Limits and methods of measurement
CISPR 14-1:Electromagnetic compatibility – Requirements for household appliances, electric tools and similar apparatus – Part 1: Emission
CISPR 15:Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
CISPR 16-1-2:Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-2: Radio disturbance and immunity measuring apparatus – Ancillary equipment – Conducted disturbances CISPR 22, Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement


Included below are the sections of IEC 60601-1 Keystone Compliance can assist manufacturers with: