Technological Innovation

What is EN 61557-12:2020?

EN 61557-12:2020 is a technical standard that provides guidelines for electrical safety testing and measuring equipment. It specifies the requirements for combined devices, known as multifunctional measuring instruments, used to test and measure electrical installations in buildings.

Importance of EN 61557-12:2020

In today's modern world, electricity plays a crucial role in our daily lives. Electrical safety is of utmost importance to ensure the well-being of individuals and the protection of property. The use of reliable and accurate measuring instruments is essential to guarantee that electrical installations comply with safety standards and regulations.

EN 61557-12:2020 sets forth specific requirements for multifunctional measuring instruments designed for electrical safety measurements. These instruments provide a comprehensive range of functions and capabilities, allowing technicians to perform various tests accurately and efficiently. Compliance with this standard ensures consistent and reliable measurements, reducing the risk of errors, accidents, and potential hazards.

Main Features of EN 61557-12:2020

The standard defines the technical characteristics and performance requirements for multifunctional measuring instruments used in electrical installations. It covers various aspects such as:

Measurement Functions: The standard includes guidelines for voltage, current, resistance, frequency, and power factor measurements. It also covers insulation resistance, loop impedance, and earth resistance measurements.

Test Conditions: EN 61557-12:2020 specifies the environmental conditions under which measurements should be performed to ensure accurate results. It considers factors like temperature, humidity, electromagnetic compatibility (EMC), and mechanical influences.

Safety Requirements: The standard outlines the necessary safety features and precautions to be implemented in multifunctional measuring instruments. It ensures protection against electrical shocks, short circuits, overloads, and other potential hazards.

Accuracy and Precision: EN 61557-12:2020 sets requirements for measurement accuracy and precision of the instruments. This ensures the reliability of measurements and minimizes uncertainties.


EN 61557-12:2020 is a significant technical standard that serves as a reference for the design, manufacturing, and testing of multifunctional measuring instruments used in electrical installations. Compliance with this standard ensures the safety and reliability of electrical measurements, protecting both individuals and property from potential hazards. By relying on instruments that meet EN 61557-12:2020 requirements, technicians can confidently perform electrical safety tests while maintaining consistent and accurate results.



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