EN 60297-3-108:2015

SLOVENSKI STANDARD
01-september-2015
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Bauweisen für elektronische Einrichtungen - Maße der 482,6-mm-(19-in-)Bauweise - Teil
3-108: Maße von Baugruppenträgern und steckbaren Baugruppen Typ R
Structures mécaniques pour équipements électroniques - Dimensions des structures
mécaniques de la série 482,6 mm (19 pouces) - Partie 3-108: dimensions des bacs de
type r et des blocs enfichables
Ta slovenski standard je istoveten z: EN 60297-3-108:2015
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 60297-3-108

NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2015
ICS 31.240
English Version
Mechanical structures for electronic equipment - Dimensions of
mechanical structures of the 482,6 mm (19 in) series - Part 3-
108: Dimensions of R-type subracks and plug-in units
(IEC 60297-3-108:2014)
Structures mécaniques pour équipements électroniques - Bauweisen für elektronische Einrichtungen - Maße der
Dimensions des structures mécaniques de la série 482,6 482,6-mm-(19-in-)Bauweise - Teil 3-108: Maße von
mm (19 pouces) - Partie 3-108: dimensions des bacs de Baugruppenträgern und steckbaren Baugruppen Typ R
type r et des blocs enfichables (IEC 60297-3-108:2014)
(IEC 60297-3-108:2014)
This European Standard was approved by CENELEC on 2014-10-14. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60297-3-108:2015 E

Foreword
The text of document 48D/565/FDIS, future edition 1 of IEC 60297-3-108, 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
approved by CENELEC as EN 60297-3-108:2015.

The following dates are fixed:
(dop) 2014-07-16
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2017-10-14
standards conflicting with the
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 [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 60297-3-108:2014 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 60297-3-108:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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.cenelec.eu.
Publication Year Title EN/HD Year
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 60297-3-101 -  Mechanical structures for electronic EN 60297-3-101 -
equipment - Dimensions of mechanical
structures of the 482,6 mm (19 in) series --
Part 3-101: Subracks and associated plug-in
units
IEC 60297-3-105 -  Mechanical structures for electronic EN 60297-3-105 -
equipment - Dimensions of mechanical
structures of the 482,6 mm (19 in) series --
Part 3-105: Dimensions and design aspects
for 1U high chassis
IEC 61587-1 -  Mechanical structures for electronic EN 61587-1 -
equipment - Tests for IEC 60917 and IEC
60297 series -- Part 1: Environmental
requirements, test set-up and safety aspects
for cabinets, racks, subracks and chassis
under indoor conditions
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, racks and
subracks
IEC 61587-5 -  Mechanical structures for electronic EN 61587-5 -
equipment - Tests for IEC 60917 and IEC
60297 -- Part 5: Seismic tests for chassis,
subracks, and plug-in units
IEC/TS 62610-2 -  Mechanical structures for electronic - -
equipment - Thermal management for
cabinets in accordance with IEC 60297 and
IEC 60917 series - Part 2: Design guide:
Method for the determination of forced air-
cooling structure
IEC 60297-3-108 ®
Edition 1.0 2014-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Mechanical structures for electronic equipment – Dimensions of mechanical

structures of the 482,6 mm (19 in) series –

Part 3-108: Dimensions of R-type subracks and plug-in units

Structures mécaniques pour équipements électroniques – Dimensions des

structures mécaniques de la série 482,6 mm (19 pouces) –

Partie 3-108: Dimensions des bacs de type R et des blocs enfichables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 31.240 ISBN 978-2-8322-1790-0

– 2 – IEC 60297-3-108:2014 © IEC 2014
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Arrangement overview . 8
5 RA – type subrack . 9
5.1 General . 9
5.2 RA–type subrack rear mounting dimensions . 11
6 RB–type subrack . 12
6.1 General . 12
6.2 RB–type subrack rear mounting dimensions . 13
7 R–type subrack guide rails . 13
8 Electromagnetic shielding provisions and mounting flanges . 14
9 Chassis integrated subrack . 15
9.1 General . 15
9.2 RA– C–type chassis/subrack . 16
9.3 RB–C–type chassis/subrack . 16
10 Front panel/plug-in unit compatible with RA – type subrack . 17
11 Front panel/plug-in unit compatible with RB – type subrack . 19
12 Injector/extractor handle . 20
13 Printed board dimensions . 20
14 Dimensions. 21
15 Nomenclature . 22
15.1 Reference plane (given in square boxes of figures) . 22
15.2 Dimensions of Table 1 . 22
Annex A (normative) Mounting support . 23
A.1 Chassis/subrack mounting support in cabinets . 23
Annex B (normative) Environmental tests. 24
B.1 Static and dynamic load test . 24
B.2 Seismic test . 24
B.3 Electromagnetic shielding performance test . 24
Annex C (normative) Thermal management . 25
C.1 Air ducting . 25
Annex D (informative) Comparison of IEC 60297-3-101 with IEC 60297-3-108 . 26

Figure 1 – Subrack application . 6
Figure 2 – Arrangement of a R-type subrack and plug-in units . 9
Figure 3 – RA–type subrack front mounting dimensions . 10
Figure 4 – RA–type subrack rear mounting dimensions . 11
Figure 5 – RB–type subrack front mounting dimensions . 12
Figure 6 – RB–type subrack rear mounting dimensions . 13
Figure 7 – R–type subrack guide rails . 14

IEC 60297-3-108:2014 © IEC 2014 – 3 –
Figure 8 – R–type subrack front attachment plane and mounting flanges . 15
Figure 9 – RA – C type chassis/subrack . 16
Figure 10 – RB–C – type chassis/subrack . 17
Figure 11 – Front panel/ plug-in unit compatible with RA – type subrack . 18
Figure 12 – Front panel/ plug-in unit compatible with RB – type subrack . 19
Figure 13 – Injector/extractor handle . 20
Figure 14 – Printed board dimensions . 21
Figure A.1 – Subrack/chassis mounting support . 23
Figure C.1 – Thermal management example . 25

Table 1 – Dimensions . 21
Table D.1 – Comparison of dimensions and features .
...