BS EN 60917-2-5:2012 BSI Standards Publication Modular order for the development of mechanical structures for electronic equipment practices Part 2-5: Sectional specification — Interface co-ordination dimensions for the 25 mm equipment practice — Cabinet interface dimensions for miscellaneous equipment NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW raising standards worldwide™ BRITISH STANDARD BS EN 60917-2-5:2012 National foreword This British Standard is the UK implementation of EN 60917-2-5:2012 It is identical to IEC 60917-2-5:2012 The UK participation in its preparation was entrusted to Technical Committee EPL/48, Electromechanical components and mechanical structures for electronic equipment A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2012 Published by BSI Standards Limited 2012 ISBN 978 580 73891 ICS 31.240 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2012 Amendments issued since publication Amd No Date Text affected BS EN 60917-2-5:2012 EUROPEAN STANDARD EN 60917-2-5 NORME EUROPÉENNE October 2012 EUROPÄISCHE NORM ICS 31.240 English version Modular order for the development of mechanical structures for electronic equipment practices Part 2-5: Sectional specification Interface co-ordination dimensions for the 25 mm equipment practice Cabinet interface dimensions for miscellaneous equipment (IEC 60917-2-5:2012) Ordre modulaire pour le développement des structures mécaniques pour les infrastructures électroniques Partie 2-5: Spécification intermédiaire Dimensions de coordination pour les interfaces des infrastructures au pas de 25 mm Dimensions pour les interfaces des baies pour équipements divers (CEI 60917-2-5:2012) Modulordnung für die Entwicklung von Bauweisen für elektronische Einrichtungen Teil 2-5: Strukturnorm Schnittstellen-Koordinationsmaße für die 25-mm-Bauweise Schrank-Schnittstellenmaße für sonstige Einrichtungen (IEC 60917-2-5:2012) This European Standard was approved by CENELEC on 2012-08-28 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 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels © 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 60917-2-5:2012 E BS EN 60917-2-5:2012 EN 60917-2-5:2012 -2- Foreword The text of document 48D/509/FDIS, future edition of IEC 60917-2-5, 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 60917-2-5:2012 The following dates are fixed: • • 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 standards conflicting with the document have to be withdrawn (dop) 2013-05-28 (dow) 2015-08-28 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 60917-2-5:2012 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 series NOTE Harmonized in EN 60297 series IEC 60917 series NOTE Harmonized in EN 60917 series -3- BS EN 60917-2-5:2012 EN 60917-2-5:2012 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 When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies Publication Year Title IEC 60297-3-100 - EN 60297-3-100 Mechanical structures for electronic 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 60917-1 - Modular order for the development of mechanical structures for electronic equipment practices Part 1: Generic standard EN 60917-1 - IEC 60917-2-1 - 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 EN 60917-2-1 - EN/HD Year - –2– BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 CONTENTS INTRODUCTION Scope Normative references Terms and definitions Arrangement overview of a frame based cabinet structure External coordination dimensions of a cabinet 5.1 General 5.2 Cabinet frame mounting points Modular frame type cabinet structure 11 6.1 6.2 6.3 Annex A General 11 Modular frame type “M” 11 Modular frame type “N” 13 (informative) Illustrative figures 15 Bibliography 19 Figure – Arrangement overview of a frame based cabinet structure Figure – External coordination dimensions of cabinet Figure – Frame mounting points of a modular cabinet 10 Figure – Modular frame type “M“ 600 mm × 600 mm 12 Figure – Modular frame type “N” 600 mm × 600 mm 13 Figure A.1 – Illustrative figures for coordination dimensions of cabinet 15 Figure A.2 – Examples of arrangements of miscellaneous equipment 16 Figure A.3 – Cabinet mounting uprights mounted on “M” type frame 600 mm × 600 mm 17 Figure A.4 – Cabinet mounting uprights mounted on “N” type frame 600 mm × 600 mm 18 Table – External coordination dimensions of cabinet 14 BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 –5– INTRODUCTION The standards IEC 60297-3-100 and IEC 60917-2-1 for electronic cabinets have been established for systematically defined external dimensions and for the internal mounting dimensions of subracks and chassis considered as the most common mechanical designs of electronic equipment Comparing the above two mentioned standards it becomes obvious that both follow the same metric footprint but differ with respect to the mounting dimensions for the installed equipment Furthermore, there are no definitions in either standards for the interface dimensions of any other miscellaneous equipment This kind of equipment is primarily not designed to standardized mounting dimensions insofar as it is meant for subracks or chassis The installation of such non-standard equipment into cabinets used to be accomplished by supporting shelves or special mounting devices In addition to the above mentioned lack of dimensional definitions there are many accessories for special applications where a definition of interface dimensions could facilitate the adaptation to a cabinet, e.g internally or externally mounted cooling device and other miscellaneous devices It seems worthwhile to create a standard for modular cabinets with the definition of interface mounting planes and mounting points for internally and externally mounted miscellaneous devices Such an attempt could fulfil the dimensional preconditions for an environmentally optimised modular structure, such as: – definition of a frame-based cabinet structure for the individual combination of piece parts e.g doors, side covers, top covers; – interfaces for miscellaneous devices by definition of mounting planes with mounting points on the cabinet frame structure; – mounting of equipment of the IEC 60297 and IEC 60917 series within the same cabinet with associated mounting uprights; – modularity of the frame-based structure supporting shipment in the form of kits in order to maximize logistics efficiency and to minimize costs Legacy cabinets complying with IEC 60917-2-1 and IEC 60297-3-100 may be considered in conjunction with cabinets of IEC 60917-2-5 without significant technical modifications due to the fact that all follow the same coordination dimensions Whilst the internal mounting points for mounting standardized equipment are defined in IEC 60297-3-100 and IEC 60917-2-1 in case of IEC 60917-2-5 additional mounting planes and mounting points are defined to be used for attaching miscellaneous equipment or accessories –6– BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 MODULAR ORDER FOR THE DEVELOPMENT OF MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT PRACTICES – Part 2-5: Sectional specification – Interface co-ordination dimensions for the 25 mm equipment practice – Cabinet interface dimensions for miscellaneous equipment Scope This part of the IEC 60917 series applies to a frame-based cabinet structure with the specification of interface dimensions for the installation of miscellaneous equipment The frame structure provides the mounting planes with mounting points for the assembly of internal and external accessories Unlike the existing standards IEC 60917-2-1 and IEC 60297-3-100, this standard allows cover parts like top covers and front/rear doors to exceed the cabinet's external coordination dimensions Normative references 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 IEC 60297-3-100, Mechanical structures for electronic 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 60917-1, Modular order for the development of mechanical structures for electronic equipment practices – Part 1:Generic standard IEC 60917-2-1, 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 BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 –7– Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60917-1, as well as the following apply 3.1 cabinet mounting uprights parts of a cabinet providing the mounting points for front panels, chassis and subracks 3.2 cabinet mounting plane and mounting point surface of the frame structure of a cabinet providing the mounting points for miscellaneous equipment and for mounting uprights 3.3 frame-based modular cabinet frame-based modular cabinet structure providing the possibility to combine different cabinet frame members for a specific cabinet size and for mounting of doors, roofs, side and rear covers as per the required performance level BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 –8– Arrangement overview of a frame-based cabinet structure The arrangement of a modular cabinet, as shown in Figure 1, illustrates a frame-based cabinet structure with the definition of mounting planes and mounting points These definitions enable the mounting of miscellaneous equipment with related accessories, mounted on the cabinet frame members Rear door Side panel Detail A Cabinet mounting uprights In accordance with IEC 60917-2-1 and IEC 60297-3-100 Mounting planes Mounting of miscellaneous equipment Frame-based cabinet structure Mounting points Detail A IEC 977/12 Figure – Arrangement overview of a frame-based cabinet structure BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 5.1 –9– External coordination dimensions of a cabinet General The external coordination dimensions of a cabinet, as shown in Figure and Table are the references used to coordinate mechanical interfaces of a range of cabinet sizes Based on a 600 mm × 600 mm cabinet, the external frame dimensions of cabinets, as shown in Figure define the boundaries which shall be always within the pitch lines of the coordination dimensions Doors, roofs, side and rear covers may stay within or exceed the pitch lines by 25 mm, max as shown in Figure Side covers exceeding the coordination dimensions may be used on single cabinets or at the end of a row of cabinets For side by side mounted cabinets, the side covers mounted between the cabinets shall not exceed the pitch line D H W IEC 978/12 Key H height W width D depth Figure – External coordination dimensions of cabinet 5.2 Cabinet frame mounting points The cabinet frame mounting points may be on any cross point of the 25 mm grid The start points are on the cross points of the pitch lines of the external coordination dimensions as shown in Figure The mounting points of a cabinet are, by definition of this standard, on the mounting planes of the cabinet frame structure The mounting points identify the location of the mounting holes for the attachment of internal and external equipment or accessories The mounting points in Figure are shown as a top view of a 600 mm wide and 600 mm deep cabinet frame The same applies to all members of the cabinet frame The figures used for the definition of mounting planes and mounting holes are not intended for purposes of physical design, but only for locating the mounting points Depending on the intended application of the cabinet, the mounting points on the frame design may be selected for placing the mounting holes as necessary BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 – 10 – Dimensions in millimetres Top view Cross section A-A on the modular frame-based cabinet structure Mounting points 600 1) Rear cover/door 25 n × 25 Members of the cabinet frame ≤ 25 600 1) 598 ± 2,0 25 n × 25 Side cover ≤ 25 598 ± 2,0 Front cover/door Cross section A-A Front and depth definition to isometric view Front view F Pitch line A Pitch line n × 25 A F n × 25 IEC 979/12 Key 1) See Table Figure – Frame mounting points of a modular cabinet BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 6.1 – 11 – Modular frame type cabinet structure General The modular frame type cabinet structure consists of horizontal, vertical and depth members These structural parts provide the mounting planes with the mounting points for internal and external equipment/accessories 6.2 Modular frame type “M” The front aperture dimension of 535,00 mm for the frame type “M” is determined for mounting uprights in accordance with IEC 60917-2-1 or IEC 60297-3-100 Figure illustrates the frame type “M” with the frame mounting points for internal and external equipment/accessories The depth aperture dimension of 485,00 mm follows the same systematic approach as the front aperture but, for the sake of structural stability of the frame members, the aperture is reduced by × 25 mm (535,00 – 50,00 = 485,00 mm) The number and position of mounting points may be chosen from any of the defined positions on the frame The preferred dimension for the holes shall be suitable for thread forming screws M6 BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 – 12 – Dimensions in millimetres Top view Cross section B-B Example of a 600 mm × 600 mm modular frame type “M” 600 598,00 ± 2,00 25 n × 25 535,00 ± 1,50 n × 25 Mounting points for M6 Cross section B-B Front and depth definition to isometric view Front view G B B G n × 25 598,00 ± 2,0 600 25 485,00 ± 1,50 n × 25 IEC 980/12 Figure – Modular frame type “M” 600 mm × 600 mm BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 6.3 – 13 – Modular frame type “N” The frame type “N” dimensions are determined for the installation of mounting uprights in accordance with IEC 60297-3-100 Figure illustrates the modular frame type “N” with the mounting points for internal and external equipment/accessories The number and position of mounting points may be chosen from any of the defined positions on the frame The preferred dimension for the holes shall be suitable for thread forming screws M6 Dimensions in millimetres Top view Cross section C-C Example of a 600 mm × 600 mm modular frame type “N” 600 598,00 ± 2,00 25 n × 25 2) Frame mounting points for M6 513,00 ± 1,50 2) n x 25 598,00 ± 2,00 600 25 513, 00 ± 1,50 Front view G Cross section C-C Front and depth definition to isometric view C n x 25 G C n × 25 IEC 981/12 Key 2) As an option, for higher frame rigidity, at 600 mm × 600 mm the dimension 513,00 mm may be reduced to 485,00 mm Figure – Modular frame type “N” 600 mm × 600 mm BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 – 14 – Table – External coordination dimensions of cabinet All dimensions in mm Height H 800 Width W Depth D 000 600 300 200 400 700 600 800 600 800 750 900 000 800 000 200 900 100 200 BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 – 15 – Annex A (informative) Illustrative figures Illustrative figures for cabinet coordination dimensions See Figure A.1 Dimensions in millimetres Front view Cabinets with side by side arrangement H W 600 700 750 800 900 300 Top view 300 D 600 A.1 600 W Possible arrangement back to back IEC 982/12 Figure A.1 – Illustrative figures for coordination dimensions of cabinet BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 – 16 – A.2 Examples for the arrangement of miscellaneous equipment See Figure A.2 Dimensions in millimetres Top view Examples of cabinets with subracks/chassis with recessed mounting flanges of the IEC 60297 or IEC 60917 series 600 300 600 Space for cabling 600 600 750 Side view Cabinet with bottom mounted heat exchanger D Top view Cabinet with side mounted heat exchanger 200 Subrack/chassis mounting area 900 200 IEC 983/12 Figure A.2 – Examples of arrangements of miscellaneous equipment BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 A.3 A.3.1 – 17 – Cabinet mounting uprights General Cabinet mounting uprights are used for the installation of front panels, subracks or chassis Mounting uprights may be used as a physically separate or an integrated feature of the cabinet frame members Cabinet uprights may be used in the front position or recessed in order to increase the cabling space in front of the mounting flanges of a subrack/chassis or for better positioning of heavy equipment with respect to the centre of gravity A.3.2 Cabinet mounting uprights mounted on “M” type frame members Figure A.3 illustrates the cabinet mounting uprights mounted on the “M” type frame members in accordance with IEC 60917-2-1 and uprights for IEC 60297-3-100 as an alternative The same applies to cabinets with subracks/chassis mounted from the rear of the cabinet Dimensions in millimetres Top view on cabinet 600 mm × 600 mm with cabinet mounting uprights in accordance with IEC 60917-2-1 Top view on a cabinet 600 mm × 600 mm with cabinet mounting uprights in accordance with IEC 60297-3-100 600 1) 1) 2) 600 600 3) ≥ 450 n × 25 n × 25 ≥ 500 1) 1) Front Key 1) Vertical cabinet frame members type “M” 2) Cabinet mounting uprights in accordance with IEC 60917-2-1 3) Cabinet mounting uprights in accordance with IEC 60297-3-100 Figure A.3 – Cabinet mounting uprights mounted on “M” type frame 600 mm × 600 mm IEC 984/12 BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 – 18 – A.3.3 Cabinet mounting uprights mounted on “N” type frame members Figure A.4 illustrates the cabinet mounting uprights in accordance with IEC 60297-3-100, mounted on type “N” frame members The same applies to cabinets with subracks/chassis mounted from the rear of the cabinet Dimensions in millimetres Top view on a cabinet frame 600 mm × 600 mm with cabinet mounting uprights in accordance with IEC 60297-3-100 600 600 4) 5) n × 25 ≥ 450 4) Front IEC 985/12 Key 4) Vertical cabinet frame members type “N” 5) Cabinet mounting uprights in accordance with IEC 60297-3-100 Figure A.4 – Cabinet mounting uprights mounted on “N” type frame 600 mm × 600 mm BS EN 60917-2-5:2012 60917-2-5 © IEC:2012 – 19 – Bibliography IEC 60297 (all parts), Mechanical structures for electronic equipment – Dimensions of mechanical structures of the 482,6 mm (19 in) series IEC 60917 (all parts), Modular order for the development of mechanical structures for electronic equipment practices _ This page deliberately left blank This page deliberately left blank British Standards Institution (BSI) BSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services It presents the UK view on standards in Europe and at the international level BSI is incorporated by Royal Charter 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