48D/355/CD COMMITTEE DRAFT (CD) Project number
IEC/TC or SC:
48D
IEC 60297-3-100 Ed.1
Title of TC/SC:
Date of circulation
Closing date for comments
2007-02-02
2007-05-04
Mechanical structures for electronic equipment Als o o f int ere st to th e f oll owi ng com mi tt ees
Supersedes document
-
48D/353/MCR
Functions concerned:
Safety Secretary:
P. Mazura - Germany
EMC
Environment
Quality assurance
THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT SHOULD NOT BE USED FOR REFERENCE PURPOSES . RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT , WITH THEIR COMMENTS , NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION .
Title: IEC 60297-3-100 Ed.1: Mechanical structures for electronic equipment – Dimensions of mechanical structures of the 482,6mm (19in) series – Part 3-100: Basic dimensions of front panels, subracks, chassis, racks and cabinets (Titre) : -
Introductory note
This new standard is intended to replace the two old standards IEC 60297-1 and IEC 60297-2.
Copyright © 2007 International Electrotechnical Commission, IEC . All rights reserved. It is permitted to download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without permission in writing from IEC.
FORM CD (IEC) 2002-08-08
60297-3-100 Ed.1/CD
©
IEC:200X
– 2 –
48D/355/CD
CONTENTS
FOREWORD...........................................................................................................................3 INTRODUCTION.....................................................................................................................4 1
Scope ...............................................................................................................................4
2
Normative references .......................................................................................................4
3
Arrangement overview ..... ... ... ... ... ... ........ ... ... ... ... ... ........ ... ... ... ... ... ........ ... ... ... ... ... ... ........ .. 5 3.1
4
5
6
Relationship of front panels, subracks, chassis, racks and cabinets. .......................5
Front panels .....................................................................................................................6 4.1
Front panel dimensions ...........................................................................................6
4.2
Front panel fixing hole positions. .............................................................................8
Racks ...............................................................................................................................9 5.1
Rack description......................................................................................................9
5.2
Rack/cabinet mounting grid t ype A and B, rack pitches............................................9
Cabinet .......................................................................................................................... 10 6.1
Cabinet description ...............................................................................................10
6.2
Dimensions of cabinets type C ..............................................................................10
6.3
Dimensions of cabinets type D. .............................................................................11
Figure 1- Arrangement overview .............................................................................................5 Figure 2- Fr ont panel dimensio ns for 1U up to 6u ....................................................................6 Figure 3- Front panel dimensions for 6U up to 12 U .................................................................7 Figure 4- Front panel fixing hole positions ..............................................................................8 Figure 5- Rack/cab inet mounting gr id and pitches ...................................................................9 Figure 6- Dimensions of cabinet type C.................................................................................10 Figure 7- Dimensions of cabinet type D.................................................................................11 Table 1- Front panel dimensions for 1U up t o 6U ....................................................................6 Table 2- Front panel dimensions for 6U up t o 12U ..................................................................7 Table 3- Pitches of fixed rack structures .................................................................................9 Table 4- Dimensions of cabinet type C and D ....................................................................... 11
60297-3-100 Ed.1/CD
©
– 3 –
IEC:200X
48D/355/CD
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
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 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 co-operation 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 t he 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 express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, 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. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60297-3-100 has been prepared by subcommittee 48D, of IEC technical committee: Electromechanical components and mechanical structures for electronic equipment. This standard constitutes the merge of IEC 60297-1 and IEC 60297-2. The text of this standard is based on the following documents: FDIS
Report on voting
XX/XX/FDIS
XX/XX/RVD
Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until ______. At this date, the publica tion will be •
reconfirmed;
•
withdrawn;
•
replaced by a revised edition, or
•
amended.
60297-3-100 Ed.1/CD
©
IEC:200X
– 4 –
48D/355/CD
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, s ubracks, chassis, racks, and cabinets
INTRODUCTION This standard was developed by merging the IEC 60297-1 and IEC 60297-2 into one. Both parts are reworked and merged in order to match the recently published IEC 60297-3-101 and following parts. The purpose of the rework and renumbering is also to create an updated documentation and to improve the drawings and descriptions of the contents. The merge of the two parts into one will meet the latest market demands of the electronic industry and improve the overview of the modular order, describing the relationship between front panels, subracks, chassis, racks and cabinets.
1
Scope
This international standard IEC 60297-3-100 applies to front panels, subracks, chassis, racks and cabinets of the 482, 6 mm (19 in) series. This standard provides the basic structural dimensions for all following parts of the IEC 60297-3 series.
2
Normative references
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. IEC 60297-3-101, Dimensions of mechanical structures of the 482,6 mm (19 in) series: Subracks and associated plug-in units. IEC 60917-2-1, Modular order for the development of mechanical structures for electronic equipment practices-Part 2: Sectional specification –Interface coordination dimensions for the 25 mm equipment practice-Section 1: Detail specification – Dimensions for cabinets and racks
60297-3-100 Ed.1/CD
3
©
IEC:200X
– 5 –
48D/355/CD
Arrangement overview
3.1
Relationship of front panels, subracks, chassis, racks and cabinets.
Figure 1 illustrates the relationship of front panels, subracks, chassis, racks and cabinets. The cabinet is usually fitted with vertical members which are the mounting parts for the assembly of front panels, subracks and chassis. Racks are defined as a simple open structure of pairs of uprights without any covers (see clause 5). Cabinet with front door and vertical members with mounting holes, correspondent to the front panel, subrack and chassis mounting holes. Vertical members may be also structural parts of the racks. Vertical member
Front panel
Subrack
Plug-in units associated to the subrack Chassis
Figure 1: Arrangement overview
60297-3-100 Ed.1/CD
4
©
– 6 –
IEC:200X
48D/355/CD
Front panels
4.1
Front panel dimensions
The height increment of a front panel is 1 U, equal 44, 45 mm. There are two fixing hole versions applicable as shown in detail “A”. The front panel thickness is not defined by this standard. As shown in figure 2 and 3 and table 1 and 2, front panels of 1U, 2U and 6U h eights may be provided with different number of fixing holes. The higher number of fixing holes may be used in case of high load fixed to the front panel or other stability requirements. Height Unit divider line
Detail “A“ Two front panel fixing hole versions are applicable
482,6 ± 0,4
U
E
1 4, 7 ± 1, 2
5 , 0 + 8 , 6
A
Detail “A“
Z
U
10,3 ± 0,4
E A
13,5 ± 0,4
Dimensions in millimetres Figure 2: Front panel dimensions for 1 U up to 6 U Table 1: Front panel dimensions for 1 U up to 6 U Units
1U
2U
Front panel heights E ± 0,4
U
43, 6
44,45
88, 1
88,90
A
Z
± 0,4
± 0,4
5, 9
-
5, 9
31, 8
37, 7
-
5, 9
76, 2
3U
132, 5
133,35
37, 7
57, 15
4U
177, 0
177,8
37, 7
101, 6
5U
221, 5
222,25
37, 7
146, 1
6U
265, 9
266,70
37, 7
190, 5
Dimensions in millimetres, tolerances are non-cumulative
60297-3-100 Ed.1/CD
©
– 7 –
IEC:200X
48D/355/CD
Height Unit divider line
Z
Y
U
E
Z A
Figure 3: Front panel dimensions for 6 U up to 12 U
Table 2: Front panel dimensions for 6 U up to 12 U Units
Front panel heights E
A
Z
Y
± 0,4
± 0,4
± 0,4
U
± 0,4 6U
265, 9
266, 70
37, 7
57, 15
76, 2
7U
310, 3
311, 15
37, 7
88, 9
57, 15
8U
354, 8
355, 60
37, 7
101, 6
76, 2
9U
399, 2
400, 05
37, 7
101, 6
120, 6
10 U
443, 7
449, 50
37, 7
101, 6
165, 1
11 U
488, 1
488, 95
37, 7
133, 3
146, 1
12 U
532, 6
533, 40
37, 7
133, 3
190, 6
Dimensions in millimetres, tolerances non-cumulative
60297-3-100 Ed.1/CD
4.2
©
– 8 –
IEC:200X
48D/355/CD
Front panel fixing hole positions.
Figure 4 illustrates the stipulation of front panels in accordance to the height increment of 44, 45 mm and the fixing holes position. 1U, 2U and 6U front panels fixing hole spacing may be chosen from two optional versions. Since the fixing holes of the front panels apply also to subracks of IEC 60297-3-101, the number of fixing holes may be chosen dependent on the weight load. Height mounting 44, 45 mm 1U
grid 1U
2U
2U
3U
4U
5U
6U
6U
7U
8U
Figure 4: Front panel fixing hole positions
9U
10U
11U
12U
60297-3-100 Ed.1/CD
5
©
– 9 –
IEC:200X
48D/355/CD
Racks
5.1
Rack description
The rack structures are defined as a series of vertical members, spaced on a predetermined pitch See table 3), fixed to the floor at the lower part and to the ceiling and/or wall at the top. Each pair of vertical members will allow the attachment of front panels, subracks, etc., in accordance to this standard series. The pitch of the fixed rack structures is equal to the theoretical centre distance of a plurality of racks. Each vertical rack member may be separated from or combined with the vertical member of the adjacent rack, providing the pitch is maintained. The heights and depth of such structures are not covered by this standard. 5.2
Rack/cabinet mounting grid type A and B, rack pitches
The mounting grid applies to racks and cabinets. Figure 5 illustrate the hole spacing with the mounting grid in two different versions: Type A on the left hand: The hole grid is corresponding to the front panel, subrack and chassis fixing hole positions. Type B on the right hand: The same grid underlay but with additional holes. These additional holes do not correspond to the front panel or subrack fixing holes. The additional holes may be used for the fixing of other structural parts like telescopic slide brackets. The fixing holes may be of different shape, for instance round, round threaded or square for cage nuts. The preferred thread dimension is M 6. 8 , 0 ± 9 , 7
Type A
Type B
P
P
465, 1 ± 1, 6
465, 1 ± 1, 6
= 4
=
4 0 ± 5 7
4 , 0 ± 7 , 2 1
1 3
U x n > S
8 , 0 ± 9 , 7
=
≥ 450
=
≥ 450
Standard mounting grid
Standard m oun ting g rid additional holes
0 ± 5 7 1 3
4 , 0 ± 5 7 , 1 3
wit h
Note: The tolerance between any two holes within a distance of 1m: ± 0, 4 mm. Dimensions in millimetres. Figure5: Rack/cabinet mounting grid and pitches Table 3: Pitches of fixed rack structures Pitches P
500
525
550
600
60297-3-100 Ed.1/CD
6
©
IEC:200X
– 10 –
48D/355/CD
Cabinet
6.1
Cabinet description
A cabin et is defined as a free standin g and self support ing enc losure for electronic equip me nt capable of being used alone or in combination with other cabinets to form a suite. A cabinet may or may not be fitted with plinth, feet, castors, etc depending on the load carrying and mobility requirements. The cabinet may be fitted with doors and/or side panels on one or more sides to suit the application. A cabinet will contain or incorporate vertical members providing the mounting holes for the fixing of front panels, subracks or chassis. The mounting holes of the vertical members are on the same position as on an open rack structure. 6.2
Dimensions of cabinets type C
The dimensions of cabinets type C are shown in Figure 6 and table 4: This type of cabinet does not include the front and rear doors within the total depth dimension. Plinth, pedestals or castors are included in the total heights dimension H. The aperture S shown in figure 6 shall be greater as n x U.
Front view
Vertical members
See clause 5.2
2 . 5 e 4 s e U u l a b x l a n c t d > e e n S S a
H
Pedestal or plinth
Castor
P W
Top view
D
Vertical member
1)
0 2 1 / 0 6
1) Figure 6: Dimensions of cabinet type C
Recessed plane of vertical members for mounting of protruding front anels or subracks 1) Front and rear doors are not included in dimension D
60297-3-100 Ed.1/CD
©
– 11 –
IEC:200X
48D/355/CD
Table 4: Dimensions of cabinet type C and D Height
800
1000
1200
1400
1600
1800
2000
2200
S>
13 x U
18 x U
22 x U
27 x U
31 x U
36 x U
40 x U
45 x U
nxU
577, 85
800, 10
977, 90
1200, 15
1377, 95
1600, 20
1778, 0
2000, 25
H
Pitch P
600
550
800
700
900
W
Depth D
600
300
800
900
1000
1200
Preferred dimensions in bold. All dimensions in millimetres
6.3
Dimensions of cabinets type D.
The dimensions of cabinet type D have been added to the standard in order to meet the latest market demands. Many applications of electronic cabinets are using the footprint of the 25 mm standard as laid down in IEC 60917-2-1 but inside the cabinet with equipment dimensions of the 482, 6 mm standard. Cabinets of type D differ from cabinets type C of clause 6.2 by having the front and rear doors included in dimension D (see figure 7). P W
D
Front and rear doors are included in dimension D. Missing dimensions see clause 6.2
Figure 7: Dimensions of cabinet type D