SIST EN IEC 62991:2025

SLOVENSKI STANDARD
01-julij-2025
Posebne zahteve za opremo za preklapljanje virov (SSE) (IEC 62991:2022)
Particular requirements for source switching equipment (SSE) (IEC 62991:2022)
Besondere Anforderungen an Quellenumschalteinrichtungen (SSE) (IEC 62991:2022)
Exigences particulières relatives au matériel de commutation de source (SSE) (IEC
62991:2022)
Ta slovenski standard je istoveten z: EN IEC 62991:2025
ICS:
27.015 Energijska učinkovitost. Energy efficiency. Energy
Ohranjanje energije na conservation in general
splošno
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62991

NORME EUROPÉENNE
EUROPÄISCHE NORM April 2025
ICS 03.100.70; 27.015; 29.020
English Version
Particular requirements for source switching equipment (SSE)
(IEC 62991:2022)
Exigences particulières relatives au matériel de Besondere Anforderungen an
commutation de source (SSE) Quellenumschalteinrichtungen (SSE)
(IEC 62991:2022) (IEC 62991:2022)
This European Standard was approved by CENELEC on 2025-02-19. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62991:2025 E
European foreword
The text of document 23K/78/FDIS, future edition 1 of IEC 62991, prepared by SC 23K "Electrical
Energy Efficiency products" of IEC/TC 23 "Electrical accessories" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN IEC 62991:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-04-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-04-30
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
For the relationship with EU Legislation, see informative Annex ZZ, which is an integral part of this
document.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62991:2022 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60038 NOTE Approved as EN 60038
IEC 60112 NOTE Approved as EN IEC 60112
IEC 60364-4-41 NOTE Approved as HD 60364-4-41
IEC 60364-8-1:2019 NOTE Approved as HD 60364-8-1:2019 (not modified)
IEC 60529 NOTE Approved as EN 60529
IEC 60669-1:2017 NOTE Approved as EN 60669-1:2018
IEC 60947-1:2020 NOTE Approved as EN IEC 60947-1:2021 (not modified)
IEC 60947-4-1:2018 NOTE Approved as EN IEC 60947-4-1:2019 (not modified)
IEC 60947-6-1:2021 NOTE Approved as EN IEC 60947-6-1:2023 (not modified)
IEC 61000-6-1 NOTE Approved as EN IEC 61000-6-1
IEC 61140 NOTE Approved as EN 61140
IEC 62019 NOTE Approved as EN 62019
IEC 62933-1:2018 NOTE Approved as EN IEC 62933-1:2018 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-78 - Environmental testing – Part 2-78: EN 60068-2-78 2013
Tests – Test Cab: Damp heat, steady
state
IEC 60085 - Electrical insulation – Thermal EN 60085 2008
evaluation and designation
IEC 60127-1 - Miniature fuses – Part 1: Definitions EN IEC 60127-1 2024
for miniature fuses and general

requirements for miniature fuse-links

IEC 60212 - Standard conditions for use prior to EN 60212 2011
and during the testing of solid
electrical insulating materials
IEC 60228 - Conductors of insulated cables EN IEC 60228 2024

IEC 60317-0-1 2013 Specifications for particular types of EN 60317-0-1 2014
winding wires - Part 0-1: General
+ A1 2019
requirements - Enamelled round
copper wire
IEC 60364-8-82 2022 Low voltage electrical installations- - -
Part 8-82: Prosumer’s low-voltage
electrical installations
IEC 60384-14 2013 Fixed capacitors for use in electronic EN 60384-14 2013
equipment – Part 14: Sectional
+ A1 2016 + A1 2016
specification – Fixed capacitors for
+ AC 2016
electromagnetic interference
suppression and connection to the
supply mains
Dated as no EN equivalent exists.
Publication Year Title EN/HD Year
IEC 60417 database Graphical symbols for use on - -
equipment (available at
http://www.graphical-
symbols.info/equipment)
IEC 60664-1 2020 Insulation coordination for equipment EN IEC 60664-1 2020
within low-voltage systems - Part 1:
+ AC 2020-12
Principles, requirements and tests
IEC 60664-3 - Insulation coordination for equipment EN 60664-3 2017
within low-votage systems - Part 3:
Use of coating, potting or moulding for
protection against pollution
IEC 60669 series Switches for household and similar EN 60669-1 2018
fixed-electrical installations
+ AC 2018-11
+ AC 2020-02
EN IEC 60669-2-1 2022
+ A11 2022
+ AC 2024-01
EN 60669-2-2 2006
EN 60669-2-3 2006
EN 60669-2-4 2005
EN 60669-2-5 2016
EN 60669-2-6 2012
IEC 60695-2-10 - Fire hazard testing - Part 2-10: EN IEC 60695-2-10 2021
Glowing/hot-wire based test methods -
+ AC 2024-01
Glow-wire apparatus and common test
procedure
IEC 60695-2-11 2021 Fire hazard testing – Part 2-11: EN IEC 60695-2-11 2021
Glowing/hot-wire based test methods
– Glow-wire flammability test method
for end-products (GWEPT)
IEC 60898-1 - Electrical accessories - Circuit- EN 60898-1 2019
breakers for overcurrent protection for

household and similar installations -

Part 1: Circuit-breakers for a.c.
operation
IEC 60898-2 - Electrical accessories - Circuit- EN 60898-2 2021
breakers for overcurrent protection for

household and similar installations -
Part 2: Circuit-breakers for AC and DC
operation
IEC 61000-4-2 - Electromagnetic compatibility (EMC) - EN 61000-4-2 2009
Part 4-2: Testing and measurement
techniques - Electrostatic discharge
immunity test
IEC 61000-4-3 - Electromagnetic compatibility (EMC) - EN IEC 61000-4-3 2020
Part 4-3: Testing and measurement
techniques - Radiated, radio-
frequency, electromagnetic field
immunity test
Publication Year Title EN/HD Year
IEC 61000-4-4 - Electromagnetic compatibility (EMC) - EN 61000-4-4 2012
Part 4-4: Testing and measurement
techniques - Electrical fast
transient/burst immunity test
IEC 61000-4-5 - Electromagnetic compatibility (EMC) - EN 61000-4-5 2014
Part 4-5: Testing and measurement
+ A1 2017
techniques - Surge immunity test
IEC 61000-4-6 - Electromagnetic compatibility (EMC) - EN IEC 61000-4-6 2023
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-
frequency fields
IEC 61000-4-8 - Electromagnetic compatibility (EMC) - EN 61000-4-8 2010
Part 4-8: Testing and measurement
techniques - Power frequency
magnetic field immunity test
IEC 61000-4-11 - Electromagnetic compatibility (EMC) - EN IEC 61000-4-11 2020
Part 4-11: Testing and measurement
+ AC 2020-06
techniques - Voltage dips, short
+ AC 2022-10
interruptions and voltage variations
immunity tests
IEC 61032 1997 Protection of persons and equipment EN 61032 1998
by enclosures - Probes for verification
IEC 61095 2009 Electromechanical contactors for EN 61095 2009
household and similar purposes
IEC 61558-2-6 - Safety of transformers, reactors, EN 61558-2-6 2009
power supply units and similar
products for supply voltages up to
1 100 V - Part 2-6: Particular
requirements and tests for safety
isolating transformers and power
supply units incorporating safety
isolating transformers
IEC 62873-3-1 2020 Residual current operated circuit- - -
breakers for household and similar
use - Part 3-1: Particular requirements
for devices with screwless-type
terminals for external copper
conductors
IEC 62873-3-3 2022 Residual current operated circuit- - -
breakers for household and similar
use - Part 3-3: Specific requirements
for devices with screw-type terminals
for external untreated aluminium
conductors and with aluminium screw-
type terminals for use with copper or
with aluminium conductors
Dated as no EN equivalent exists.
Dated as no EN equivalent exists.
Publication Year Title EN/HD Year
CISPR 14-1 2020 Electromagnetic compatibility – EN IEC 55014-1 2021
Requirements for household
appliances, electric tools and similar
apparatus - Part 1: Emission
equipment
ISO 306 - Plastics – Thermoplastic materials – EN ISO 306 2022
Determination of Vicat softening
temperature (VST)
Annex ZZ
(informative)
Relationship between this European standard and the safety
objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be
covered
This European standard has been prepared under a Commission’s standardisation request relating to
harmonised standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means
of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the
Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the
making available on the market of electrical equipment designed for use within certain voltage limits
[2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding safety objectives of
that Directive, and associated EFTA regulations.
Table ZZ.1 — Correspondence between this European standard and Annex I of Directive
2014/35/EU [2014 OJ L96]
Clause(s) / subclause(s)
Safety Objectives of Directive
Remarks / Notes
2014/35/EU
of this EN
(1) (a) 4, 5, 6 - 9.2
(1) (b) 4 - Annex D, 5, 8.1 - 9.1, 8.2.2 -
9.3, 8.2.3 - 9.11, 8.2.5 - 9.5,
8.2.6 - 9.6, 8.7.2.2 - 9.11.2
(1) (c) 7, 8.1 - 9.1
(2) (a), (b), (c) and (d) 8.2.2 - 9.3, 8.2.3 - 9.11, 8.2.4 -
9.4, 8.3 - 9.7, 8.4 - 9.8, 8.5 - 9.9,
8.6 - 9.10, 8.7 - 9.11, 8.11 -
9.15, 8.12 - 9.16.2, 9.1 - Annex
D
(3) (a), (b) and (c) 8.2.2 - 9.3, 8.4 - 9.8, 8.7 - 9.11,
8.8 - 9.12, 8.9 - 9.13, 8.10 -
9.14, 8.11 - 9.15, 8.12 - 9.16.3,
8.13 - 9.17
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
IEC 62991 ®
Edition 1.0 2022-12
INTERNATIONAL
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NORME
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Particular requirements for source switching equipment (SSE)

Exigences particulières relatives au matériel de commutation de source (SSE)

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