EN 60917-2-1:1995

SLOVENSKI STANDARD
01-september-2002
Modular order for the development of mechanical structures for electronic
equipment practices - Part 2: Sectional specification - Interface co-ordination
dimensions for the 25 mm equipment practice - Section 1: Detail specification -
Dimensions for cabinets and racks (IEC 60917-2-1:1993)
Modular order for the development of mechanical structures for electronic equipment
practices -- Part 2: Sectional specification - Interface co-ordination dimensions for the 25
mm equipment practice -- Section 1: Detail specification - Dimensions for cabinets and
racks
Modulordnung für die Entwicklung von Bauweisen für elektronische Einrichtungen -- Teil
2: Strukturnorm - Schnittstellen-Koordinationsmaße für die 25-mm-Bauweise --
Hauptabschnitt 1: Maßnorm - Maße für Schränke und Gestelle
Ordre modulaire pour le développement des structures mécaniques pour les
infrastructures électroniques -- Partie 2: Spécification intermédiaire - Dimensions de
coordination pour les interfaces des infrastructures au pas de 25 mm -- Section 1:
Spécification particulière - Dimensions pour baies et bâtis
Ta slovenski standard je istoveten z: EN 60917-2-1:1995
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.

NORME CEI
IEC
INTERNATIONALE
917-2-1
INTERNATIONAL
Première édition
STANDARD
First edition
1993-11
Ordre modulaire pour le développement
des structures mécaniques pour
électroniques -
les infrastructures
Partie 2:
Spécification intermédiaire -
Dimensions de coordination pour les interfaces
des infrastructures au pas de 25 mm -
Section 1: Spécification particulière -
Dimensions pour baies et bâtis
Modular order for the development
of mechanical structures for electronic
equipment practices -
Part 2:
-
Sectional specification
Interface co-ordination dimensions for
the 25 mm equipment practice -
Section 1: Detail specification -
Dimensions for cabinets and racks
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in writing from the publisher.
les microfilms, sans l'accord écrit de l'éditeur.
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917-2-1 © IEC:1993 - 3 -
CONTENTS
Page
FOREWORD 5
Clause
1 Scope I
2 Normative references 7
3 Arrangement overview 9
4 Dimensions
4.1 Cabinets
4.1.1 Type A cabinets
15 4.1.2 Type B cabinets
17 4.1.3 Terms and definitions
17 4.1.4 Tables for type A and B cabinets
4.2 Racks
21 5 Internal interface dimensions

917-2-1 ©IEC:1993 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
MODULAR ORDER FOR THE DEVELOPMENT
OF MECHANICAL STRUCTURES
FOR ELECTRONIC EQUIPMENT PRACTICES -
Part 2: Sectional specification -
Interface co-ordination dimensions
for the 25 mm equipment practice -
Section 1: Detail specification -
Dimensions for cabinets and racks
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international cooperation on all questions concerning standardization in the electrical and
electronic fields. To this end and in addition to other activities, the IEC publishes International Standards.
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. The 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 the IEC on technical matters, prepared by technical committees on
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
3) They have the form of recommendations for international use published in the form of standards, technical
reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
International Standard IEC 917-2-1 has been prepared by sub-committee 48D: Mechanical
structures for electronic equipment, of IEC technical committee 48: Electromechanical
components and mechanical structures for electronic equipment.
The text of this standard is based on the following documents:
DIS Report on voting
48D(CO)34
48D(CO)31
Full information on the voting for the approval of this standard can be found in the repo rt
on voting indicated in the above table.

917-2-1 © I EC:1993 - 7 -
MODULAR ORDER FOR THE DEVELOPMENT
OF MECHANICAL STRUCTURES
FOR ELECTRONIC EQUIPMENT PRACTICES -
Part 2: Sectional specification -
Interface co-ordination dimensions
for the 25 mm equipment practice -
Section 1: Detail specification -
Dimensions for cabinets and racks
1 Scope
This section of IEC 917-2 is a detail specification which is to be used in whole or in part in
all fields of electronics where devices and systems are designed according to the
sectional specification IEC 917-2.
The dimensions in the tables of this detail specification are a selection from the sectional
specification IEC 917-2. All other sizes from the sectional specification are valid in this
detail specification provided the relationship between the dimensions is maintained, i.e.
Dc and
the dimensional difference between the co-ordination dimensions H and
C
dimensions co, D0 ^ shown in tables 1, 2 and 3 are to be
and D
,
H, HCO' ca H ; W 0 , W 1
c2
maintained.
The purpose of this publication is the specification of dimensions which will ensure mechanical
inte
...