EN IEC 61969-3:2024

SLOVENSKI STANDARD
01-marec-2024
Mehanske strukture za električno in elektronsko opremo - Ohišja na prostem - 3.
del: Okoljevarstvene zahteve, preskusi in varnostni vidiki (IEC 61969-3:2023)
Mechanical structures for electrical and electronic equipment - Outdoor enclosures - Part
3: Environmental requirements, tests and safety aspects (IEC 61969-3:2023)
Mechanische Bauweisen für elektrische und elektronische Einrichtungen -
Außengehäuse - Teil 3: Umgebungsanforderungen, Prüfungen und Sicherheitsaspekte
(IEC 61969-3:2023)
Structures mécaniques pour équipement électrique et électronique - Enveloppes de plein
air - Partie 3: Exigences et essais d'environnement, et aspects liés à la sécurité (IEC
61969-3:2023)
Ta slovenski standard je istoveten z: EN IEC 61969-3:2024
ICS:
31.240 Mehanske konstrukcije za Mechanical structures for
elektronsko opremo electronic equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61969-3

NORME EUROPÉENNE
EUROPÄISCHE NORM January 2024
ICS 31.240 Supersedes EN IEC 61969-3:2020
English Version
Mechanical structures for electrical and electronic equipment -
Outdoor enclosures - Part 3: Environmental requirements, tests
and safety aspects
(IEC 61969-3:2023)
Structures mécaniques pour équipement électrique et Mechanische Bauweisen für elektrische und elektronische
électronique - Enveloppes de plein air - Partie 3: Exigences Einrichtungen - Außengehäuse - Teil 3:
et essais d'environnement, et aspects liés à la sécurité Umgebungsanforderungen, Prüfungen und
(IEC 61969-3:2023) Sicherheitsaspekte
(IEC 61969-3:2023)
This European Standard was approved by CENELEC on 2023-12-25. 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61969-3:2024 E

European foreword
The text of document 48D/765/FDIS, future edition 4 of IEC 61969-3, prepared by SC 48D
"Mechanical structures for electrical and electronic equipment" of IEC/TC 48 "Electrical connectors
and mechanical structures for electrical and electronic equipment" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 61969-3:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-09-25
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-12-25
document have to be withdrawn
This document supersedes EN IEC 61969-3:2020 and all of its amendments and corrigenda (if any).
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.
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 61969-3:2023 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 60068-2-5 NOTE Approved as EN IEC 60068-2-5
IEC 60695-11-10 NOTE Approved as EN 60695-11-10
IEC 60825-1 NOTE Approved as EN 60825-1
IEC 61010-1 NOTE Approved as EN 61010-1
IEC 61140 NOTE Approved as EN 61140
IEC 62305-4 NOTE Approved as EN 62305-4
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 60068-2-1 - Environmental testing - Part 2-1: Tests - EN 60068-2-1 -
Test A: Cold
IEC 60068-2-2 - Environmental testing - Part 2-2: Tests - EN 60068-2-2 -
Test B: Dry heat
IEC 60068-2-6 - Environmental testing - Part 2-6: Tests - EN 60068-2-6 -
Test Fc: Vibration (sinusoidal)
IEC 60068-2-10 - Environmental testing - Part 2-10: Tests - EN 60068-2-10 -
Test J and guidance: Mould growth
IEC 60068-2-11 - Environmental testing - Part 2-11: Tests - EN IEC 60068-2-11 -
Test Ka: Salt mist
IEC 60068-2-14 - Environmental testing - Part 2-14: Tests - EN IEC 60068-2-14 -
Test N: Change of temperature
IEC 60068-2-27 - Environmental testing - Part 2-27: Tests - EN 60068-2-27 -
Test Ea and guidance: Shock
IEC 60068-2-30 - Environmental testing - Part 2-30: Tests - EN 60068-2-30 -
Test Db: Damp heat, cyclic (12 h + 12 h
cycle)
IEC 60068-2-60 - Environmental testing - Part 2-60: Tests - EN 60068-2-60 -
Test Ke: Flowing mixed gas corrosion test
IEC 60529 - Degrees of protection provided by EN 60529 -
enclosures (IP Code)
IEC 60721-3-2 - Classification of environmental conditions - EN IEC 60721-3-2 -
Part 3-2: Classification of groups of
environmental parameters and their
severities - Transportation and Handling
IEC 60721-3-4 - Classification of environmental conditions - EN IEC 60721-3-4 -
Part 3-4: Classification of groups of
environmental parameters and their
severities - Stationary use at non-
weatherprotected locations
IEC 60794-1-21 - Optical fibre cables - Part 1-21: Generic EN 60794-1-21 -
specification - Basic optical cable test
procedures - Mechanical tests methods
IEC 61300-2-10 - Fibre optic interconnecting devices and EN IEC 61300-2-10 -
passive components - Basic test and
measurement procedures - Part 2-10:
Tests - Crush and load resistance
IEC 61300-2-56 2020 Fibre optic interconnecting devices and EN IEC 61300-2-56 2020
passive components - Basic test and
measurement procedures - Part 2-56:
Tests - Wind resistance of mounted
housing
IEC 61439-5 - Low-voltage switchgear and controlgear EN IEC 61439-5 -
assemblies - Part 5: Assemblies for power
distribution in public networks
IEC 61587-1 - Mechanical structures for electrical and EN IEC 61587-1 -
electronic equipment - Tests for IEC 60917
and IEC 60297 series - Part 1:
Environmental requirements, test setups
and safety aspects
IEC 61587-2 - Mechanical structures for electronic EN 61587-2 -
equipment - Tests for IEC 60917 and
60297 - Part 2: Seismic tests for cabinets
and racks
IEC 61587-3 - Mechanical structures for electronic EN 61587-3 -
equipment - Tests for IEC 60917 and IEC
60297 - Part 3: Electromagnetic shielding
performance tests for cabinets and
subracks
IEC 61969-1 2023 Mechanical structures for electrical and EN IEC 61969-1 2023
electronic equipment - Outdoor enclosures
- Part 1: Design guidelines
IEC 62194 - Method of evaluating the thermal EN 62194 -
performance of enclosures
IEC 62262 - Degrees of protection provided by EN 62262 -
enclosures for electrical equipment against
external mechanical impacts (IK code)
IEC 62368-1 - Audio/video, information and EN 62368-1 -
communication technology equipment -
Part 1: Safety requirements
ISO 2533 - Standard Atmosphere - -
ISO 3744 - Acoustics - Determination of sound power EN ISO 3744 -
levels and sound energy levels of noise
sources using sound pressure -
Engineering methods for an essentially
free field over a reflecting plane
ISO 4892-2 - Plastics - Methods of exposure to EN ISO 4892-2 -
laboratory light sources - Part 2: Xenon-arc
lamps
ISO 4892-3 - Plastics - Methods of exposure to EN ISO 4892-3 -
laboratory light sources - Part 3:
Fluorescent UV lamps
ETSI EN 300 019-2-2 - Equipment Engineering (EE); - -
Environmental conditions and
environmental tests for
telecommunications equipment; Part 2-2:
Specification of environmental tests;
Transportation
ETSI EN 300 019-2-4 - Environmental Engineering (EE); - -
Environmental conditions and
environmental tests for
telecommunications equipment; Part 2-4:
Specification of environmental tests;
Stationary use at non-weatherprotected
locations
IEC 61969-3 ®
Edition 4.0 2023-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Mechanical structures for electrical and electronic equipment – Outdoor

enclosures –
Part 3: Environmental requirements, tests and safety aspects

Structures mécaniques pour équipement électrique et électronique –

Enveloppes de plein air –
Partie 3: Exigences et essais d'environnement, et aspects liés à la sécurité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.240  ISBN 978-2-8322-7748-5

– 2 – IEC 61969-3:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 Classification of environmental conditions . 8
5 Environmental test conditions . 8
5.1 General . 8
5.2 Pass/fail criteria tests . 8
5.3 Climatic tests . 9
5.4 Biological tests . 11
5.5 Tests of resistance against chemically active substances . 11
5.6 Tests of resistance against mechanically active substances . 12
6 Mechanical tests . 12
6.1 Operational related mechanical tests . 12
6.2 Transport tests . 13
6.3 Lifting and stiffness test . 14
7 Safety aspects . 14
7.1 General . 14
7.2 Locking devices . 14
7.3 Vandalism resistance . 14
7.4 Firearms resistance (optional for outdoor metal enclosures) . 14
8 Seismic requirements . 15
9 Electromagnetic shielding performance . 15
10 Thermal management . 15
11 Acoustic noise emission . 15
Bibliography . 16

Table 1 – Pass/fail criteria tests . 9
Table 2 – Climatic conditions for environmental classes 1 and 2 . 10
Table 3 – Biological tests . 11
Table 4 – Tests of resistance against chemically active substances . 12
Table 5 – Mechanical tests (operational) . 13

IEC 61969-3:2023 © IEC 2023 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MECHANICAL STRUCTURES FOR ELECTRICAL AND
ELECTRONIC EQUIPMENT – OUTDOOR ENCLOSURES –

Part 3: Environmental requirements, tests and safety aspects

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 61969-3 has been prepared by subcommittee 48D: Mechanical structures for electrical and
electronic equipment, of IEC technical committee 48: Electrical connectors and mechanical
structures for electrical and electronic equipment. It is an International Standard.
This fourth edition cancels and replaces the third edition published in 2020. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) alignment with the content of ETSI EN 300 019 and IEC 60721 series latest editions,
particularly with the actualization of climate conditions;
b) rationale for the selected operating conditions from IEC 60721-3-4 are added;

– 4 – IEC 61969-3:2023 © IEC 2023
c) tests are grouped according to the classification of conditions in IEC 60721-3-4;
d) test severities for vibration and shock tests are aligned with ETSI EN 300 019-2-4;
e) addition of pass/fail criteria for each test.
The text of this International Standard is based on the following documents:
Draft Report on voting
48D/765/FDIS 48D/766/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
This International Standard is to be used in conjunction with IEC 61969-1:2023.
A list of all parts in the IEC 61969 series, published under the general title Mechanical structures
for electrical and electronic equipment – Outdoor enclosures, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IEC 61969-3:2023 © IEC 2023 – 5 –
INTRODUCTION
The products covered by IEC 61969 series are empty enclosures for outdoor locations, to be
equipped with application-specific combinations of electrical and electronic equipment, and to
be used at non-weatherprotected locations above ground.
IEC 61969 series consists of:
– a design guidelines general part: IEC 61969-1;
– a coordination dimensions standard: IEC 61969-2;
– an environmental requirements and tests, safety aspects standard: IEC 61969-3.
This document provides basic environmental requirements and tests, as well as safety aspects,
to be used for outdoor enclosures in absence of local regulatory documents, or of application-
specific environmental test requirements.
This document provides manufacturers and users of generic outdoor enclosures with minimum
performance compliance criteria. The thermal management solution depends on the specific
environment of the outdoor enclosure.
Since forced air heat dissipation and acoustic noise are closely related, noise limitations are
typically defined by local regulatory documents.
It is responsibility of the outdoor enclosure vendor to provide a solution for thermal management
within the local regulatory noise limitations.

– 6 – IEC 61969-3:2023 © IEC 2023
MECHANICAL STRUCTURES FOR ELECTRICAL AND
ELECTRONIC EQUIPMENT – OUTDOOR ENCLOSURES –

Part 3: Environmental requirements, tests and safety aspects

1 Scope
This part of IEC 61969 specifies a set of basic environmental requirements and tests, as well
as safety aspects for outdoor enclosures for elec
...