EN 60917-2-4:2010

SLOVENSKI STANDARD
01-junij-2010
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Modular order for the development of mechanical structures for electronic equipment
practices - Part 2-4: Sectional specification - Interface co-ordination dimensions for the
25 mm equipment practice - Adaptation dimensions for subracks or chassis applicable in
cabinets or racks in accordance with IEC 60297-3-100 (19 in) (IEC 60917-2-4:2010)
Modulordnung für die Entwicklung von Bauweisen für elektronische Einrichtungen - Teil
2-4: Strukturnorm - Schnittstellen-Koordinationsmaße für die 25-mm-Bauweise -
Anpassungsmaße für Baugruppenträger oder Einschübe, anwendbar in Schränken oder
Gestellen nach IEC 60297-3-100 (19-Zoll) (IEC 60917-2-4:2010)
Ordre modulaire pour le développement des structures mécaniques pour les
infrastructures électroniques - Partie 2-4: Spécification intermédiaire - Dimensions de
coordination pour les interfaces des infrastructures au pas de 25 mm - Dimensions
d'adaptation des bacs ou des châssis, applicables dans les baies ou les bâtis,
conformément à la CEI 60297-3-100 (19 pouces) (CEI 60917-2-4:2010)
Ta slovenski standard je istoveten z: EN 60917-2-4:2010
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 60917-2-4
NORME EUROPÉENNE
April 2010
EUROPÄISCHE NORM
ICS 31.240
English version
Modular order for the development of mechanical structures for electronic
equipment practices -
Part 2-4: Sectional specification -
Interface coordination dimensions for the 25 mm equipment practice -
Adaptation dimensions for subracks or chassis applicable in cabinets
or racks in accordance with IEC 60297-3-100 (19 in)
(IEC 60917-2-4:2010)
Ordre modulaire pour le développement Modulordnung für die Entwicklung von
des structures mécaniques pour les Bauweisen für elektronische
infrastructures électroniques - Einrichtungen -
Partie 2-4: Spécification intermédiaire - Teil 2-4: Strukturnorm -
Dimensions de coordination pour les Schnittstellen-Koordinationsmaße für die
interfaces des infrastructures au pas de 25-mm-Bauweise - Adaptionsmaße für
25 mm - Dimensions d'adaptation des Baugruppenträger oder Einschübe,
bacs ou des châssis, applicables dans les anwendbar in Schränken oder Gestellen
baies ou les bâtis, conformément à la nach IEC 60297-3-100 (19-Zoll)
CEI 60297-3-100 (19 pouces) (IEC 60917-2-4:2010)
(CEI 60917-2-4:2010)
This European Standard was approved by CENELEC on 2010-04-01. 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 Central Secretariat 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 Central Secretariat 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60917-2-4:2010 E
Foreword
The text of document 48D/420/FDIS, future edition 1 of IEC 60917-2-4, prepared by SC 48D, Mechanical
structures for electronic equipment, of IEC TC 48, Electromechanical components and mechanical
structures for electronic equipment, was submitted to the IEC-CENELEC parallel vote and was approved
by CENELEC as EN 60917-2-4 on 2010-04-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-01-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-04-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60917-2-4:2010 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 standards indicated:
IEC 60297-3-101 NOTE  Harmonized as EN 60297-3-101.
IEC 60917-1 NOTE  Harmonized as EN 60917-1.
IEC 60917-2-1 NOTE  Harmonized as EN 60917-2-1.
IEC 61587-1 NOTE  Harmonized as EN 61587-1.
IEC 61587-2 NOTE  Harmonized as EN 61587-2.
IEC 61587-3 NOTE  Harmonized as EN 61587-3.
__________
- 3 - EN 60917-2-4:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60297 Series Mechanical structures for electronic EN 60297 Series
equipment - Dimensions of mechanical
structures of the 482,6 mm (19 in) series

IEC 60297-3-100 - Mechanical structures for electronic EN 60297-3-100 -
equipment - Dimensions of mechanical
structures of the 482,6 mm (19 in) series -
Part 3-100: Basic dimensions of front panels,
subracks, chassis, racks and cabinets

IEC 60297-3-106 - Mechanical structures for electronic EN 60297-3-106 -
equipment - Dimensions of mechanical
structures of the 482,6 mm (19 in) series -
Part 3-106: Adaptation dimensions for
subracks and chassis applicable with metric
cabinets or racks in accordance with
IEC 60917-2-1
IEC 60917 Series Modular order for the development of EN 60917 Series
mechanical structures for electronic
equipment practices
IEC 60917-2-2 - Modular order for the development of EN 60917-2-2 -
mechanical structures for electronic
equipment practices -
Part 2: Sectional specification - Interface co-
ordination dimensions for the 25 mm
equipment practice -
Section 2: Detail specification - Dimensions
for subracks, chassis, backplanes, front
panels and plug-in units
IEC 60917-2-4 ®
Edition 1.0 2010-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Modular order for the development of mechanical structures for electronic
equipment practices –
Part 2-4: Sectional specification – Interface co-ordination dimensions for the
25 mm equipment practice – Adaptation dimensions for subracks or chassis
applicable in cabinets or racks in accordance with IEC 60297-3-100 (19 in)

Ordre modulaire pour le développement des structures mécaniques pour les
infrastructures électroniques –
Partie 2-4: Spécification intermédiaire – Dimensions de coordination pour les
interfaces des infrastructures au pas de 25 mm – Dimensions d’adaptation des
bacs ou des châssis, applicables dans les baies ou les bâtis, conformément à la
CEI 60297-3-100 (19 pouces)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
N
CODE PRIX
ICS 31.240 ISBN 2-8318-1084-0
– 2 – 60917-2-4 © IEC:2010
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope and object.6
2 Normative references .6
3 Arrangement overview (Figure 1) and definitions .7
4 Dimensions for adaptor flanges of the specific metric subracks or chassis (suitable
only where W = 425 mm) mountable into 19 in cabinets or racks.8
S1
4.1 General .8
4.2 Dimensions for mounting holes arrangements on the adaptor flanges,
mounting layout referred to the bottom pitch lines of the metric subracks or
chassis.8
4.3 Dimensions for mounting holes arrangements on the adaptor flanges,
mounting layout referred to the unit centre lines of the metric subracks or
chassis.10
Bibliography.14

Figure 1 – Arrangement overview – Adaptation of specific subracks (aperture width for
plug-in units: W = 425 mm, 85 × 5,0 mm) of IEC 60917-2-4 into cabinets of
S1
IEC 60297-3-100 .7
Figure 2 – Mounting hole arrangements of the adaptor flanges, mounting layout
referred to the bottom pitch lines of the metric subracks or chassis.8
Figure 3 – Dimensions of mounting hole positions of the adaptor flanges, mounting
layout referred to the bottom pitch lines of the metric subracks or chassis .9
Figure 4 – Mounting hole arrangements on the adaptor flanges, mounting layout
referred to the unit centre lines of the metric subracks or chassis .11
Figure 5 – Dimensions of mounting holes positions of the adaptor flanges, mounting
layout referred to the unit centre lines of the metric subracks or chassis.12

Table 1 – Dimensions of mounting holes positions of the adaptor flanges, mounting
layout referred to the bottom pitch lines of the metric subracks or chassis .10
Table 2 – Dimensions of mounting holes positions of the adaptor flange, mounting
layout referred to the unit centre lines of the metric subracks or chassis.13

60917-2-4 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MODULAR ORDER FOR THE DEVELOPMENT
OF MECHANICAL STRUCTURES
FOR ELECTRONIC EQUIPMENT PRACTICES –

Part 2-4: Sectional specification –
Interface co-ordination dimensions for the 25 mm equipment practice –
Adaptation dimensions for subracks or chassis applicable in cabinets
or racks in accordance with IEC 60297-3-100 (19 in)

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-
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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
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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
...