REFERENCE STANDARDS

Awareness, that transient surges are the main influencing factor of the MTBF (Mean Time Between Failures) of systems and equipment, is driving all manufacturers in the area of surge protection to continuously develop new overvoltage protective devices with increasing features and in compliance with the actual national and International standards. The following is a list of the key standards involved:

IEC 61643-11 Ed. 1 (2011-03) - EN 61643-11 (2012-10)
Low-voltage surge protective devices:
Part 11: Surge protective devices connected to low-voltage power systems.
Requirements and test methods.

IEC 61643-12 Ed. 3 (2020-05) - CLC/TS 61643-12 (2009)
Surge protective devices connected to low-voltage power systems.
Selection and application principles.

IEC 61643-21 Ed. 1.2 (2012-07) - EN 61643-21 +A1 +A2 (2001/2009/2013)
Low-voltage surge protective devices.
Part 21: Surge protective devices connected to telecommunications and signalling networks.
Performance requirements and testing methods.

IEC 61643-22 Ed. 2 (2015-06) - CLC/TS 61643-22 (2016)
Surge protective devices connected to telecommunications and signalling networks.
Selection and application principles.

IEC 61643-31 Ed. 1 (2018-01) - EN 61643-31 (2019-10)
Surge protective devices.
Part 31: SPDs connected to the c.c. side of photovoltaic applications. Requirements and tests methods.

IEC 61643-32 (2017-09) - CLC/TS 51543-32 (2020)
Low-voltage surge protective devices. SPDs connected to the c.c. side of photovoltaic installations. Selection and application principles.

IEC 62305 series Ed. 2 (2010-12) - EN 62305 series (2011/2012)
Protection against lightning:
Part 1: General principles;
Part 2: Risk management;
Part 3: Physical damage to structures and life hazard;
Part 4: Electrical and electronic systems within structures.

IEC 60364-5-534 (2015-09) - HD 60364-5-534 (2016-02)
Low-voltage electrical installations.
Part 5-53: Selection and erection of electrical equipment. Isolation, switching and control.
Clause 534: Devices for protection against transient overvoltages.

IEC 61000-4-5 Ed. 3 (2014-05) - EN 61000-4-5 (2014)
Electromagnetic compatibility (EMC).
Part 4-5: Testing and measurement techniques.
Surge immunity test.

IEC 61439 series - EN 61439 series 
Low-voltage switchgear and controlgear assemblies.

IEC 61439-1(2020) / EN 61439-1 (2011)
Part 1: General rules.

IEC 61439-2 (2011) / EN 62439-2 (2011)
Part 2: Power switchgear and controlgear assemblies.

IEC 61439-3 (2012) / EN 62439-3 (2012)+AC (2019)
Part 3: Distribution boards intended to be operated by ordinary persons (DBO).

IEC 61439-4 (2012) / EN 62439-4 (2013)
Part 4: Particular requirements for assemblies for construction sites (ACS).

IEC 61439-7 (2018) / EN IEC 61439-7 (2020)
Part 7: Assemblies for specific applications such as marinas camping sites, market squares,
electric vehicle charging stations.