This document specifies dimensional and functional requirements for the compatible mounting of switchgear, controlgear and accessories on some types of rails.<\/p>\n
The object of this document is to specify those dimensions that are critical for the correct design of mounting rails and equipment.<\/p>\n
The following sections are covered by this document:<\/p>\n
“top hat” section;<\/p>\n<\/li>\n
“C” section;<\/p>\n<\/li>\n
“G” section.<\/p>\n<\/li>\n<\/ul>\n
Mounting compatibility does not imply functional interchangeability.<\/p>\n<\/div>\n
Annexes deal with specific steel mounting rails satisfying the requirements of this document, and give additional dimensional data and loading requirements applicable to such rails.<\/p>\n
The detailed design and material of specific steel rails is given in the annexes.<\/p>\n<\/div>\n
Other shapes of rails complying with this document not listed in Annex A<\/span> can be used.<\/p>\n<\/div>\n Mounting rails used as a protective conductor using a conducting connection to a protective conductor terminal block are specified in IEC 60947\u20117\u20112<\/span> <\/span>. In other applications where the mounting rail is used as earthing conductor, the relevant product standard applies.<\/p>\n This document has the status of a horizontal standard in accordance with IEC Guide 108:2006<\/span> <\/span>.<\/p>\n This horizontal standard is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 108<\/span> <\/span>.<\/p>\n One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal standards in the preparation of its publications. The contents of this horizontal standard will not apply unless specifically referred to or included in the relevant publications.<\/p>\n Dimensions of low-voltage switchgear and controlgear. Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories<\/b><\/p>\nPDF Catalog<\/h4>\n
\n
\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 2<\/td>\n undefined <\/td>\n<\/tr>\n \n 7<\/td>\n English
CONTENTS <\/td>\n<\/tr>\n\n 9<\/td>\n FOREWORD <\/td>\n<\/tr>\n \n 11<\/td>\n INTRODUCTION <\/td>\n<\/tr>\n \n 12<\/td>\n 1 Scope
2 Normative references <\/td>\n<\/tr>\n\n 13<\/td>\n 3 Terms and definitions
4 Functional requirements
5 Standard dimensions
5.1 General <\/td>\n<\/tr>\n\n 14<\/td>\n 5.2 Top hat section
Figures
Figure 1 \u2013 Mounting rail TH 15
Figure 2 \u2013 Mounting rail TH 35 <\/td>\n<\/tr>\n\n 15<\/td>\n 5.3 “C” section
Figure 3 \u2013 Mounting rail TH 75
Figure 4 \u2013 Mounting rail C 20 <\/td>\n<\/tr>\n\n 16<\/td>\n Figure 5 \u2013 Mounting rail C 30
Figure 6 \u2013 Mounting rail C 40 <\/td>\n<\/tr>\n\n 17<\/td>\n Figure 7 \u2013 Mounting rail C 50 <\/td>\n<\/tr>\n \n 18<\/td>\n 5.4 “G” section
Figure 8 \u2013 Mounting rail G 32 <\/td>\n<\/tr>\n\n 19<\/td>\n Annex A (normative) Specific steel mounting rails
A.1 General
A.2 Top hat section rail TH 15-5,5
A.2.1 Dimensions <\/td>\n<\/tr>\n\n 20<\/td>\n A.2.2 Tolerances
A.3 Top hat section rail TH 35-7,5 and TH 35-15
A.3.1 Dimensions
Figure A.1 \u2013 Top hat rails 15 mm wide for snap-on mounting of equipment
Figure A.2 \u2013 Tolerances (TH 15-5,5) <\/td>\n<\/tr>\n\n 21<\/td>\n A.3.2 Tolerances
A.4 Top hat section rail TH 75-25
A.4.1 Dimensions
Figure A.3 \u2013 Top hat rails 35 mm wide for snap-on mounting of equipment
Figure A.4 \u2013 Tolerances (TH 35-7,5 and TH 35-15) <\/td>\n<\/tr>\n\n 22<\/td>\n A.4.2 Tolerances
A.5 “C” section rails: C 20, C 30, C 40 and C 50
A.5.1 Dimensions
Figure A.5 \u2013 Top hat rail 75 mm wide for snap-on mounting of equipment
Figure A.6 \u2013 Tolerances (TH 75-25) <\/td>\n<\/tr>\n\n 23<\/td>\n A.5.2 Tolerance
A.6 “G” section rail: G 32
A.6.1 Dimensions
Figure A.7 \u2013 “C” section rails
Figure A.8 \u2013 Tolerances (C 20, C 30, C 40 and C 50)
Table A.1 \u2013 Dimensions of \u201cC\u201d section rails <\/td>\n<\/tr>\n\n 24<\/td>\n A.6.2 Tolerances
Figure A.9 \u2013 Dimensions of “G” section rails
Figure A.10 \u2013 Tolerances (G 32) <\/td>\n<\/tr>\n\n 25<\/td>\n Annex B (informative) Application guide
B.1 General
B.2 Guidance for use of top hat rails
B.2.1 For steel rails in Annex A <\/td>\n<\/tr>\n\n 26<\/td>\n Figure B.1 \u2013 Assessment of rail deflection <\/td>\n<\/tr>\n \n 27<\/td>\n Figure B.2 \u2013 Permissible load capacity ME = f(L,h) <\/td>\n<\/tr>\n \n 28<\/td>\n B.2.2 For rails other than steel rails
B.3 Guidance for use of “C” section rails
B.3.1 General
B.3.2 For steel rails to Annex A
Figure B.3 \u2013 Permissible load capacity ME = f(L,h) <\/td>\n<\/tr>\n\n 29<\/td>\n Figure B.4 \u2013 Assessment of rail deflection
Table B.1 \u2013 Maximum torque Mmax <\/td>\n<\/tr>\n\n 30<\/td>\n Figure B.5 \u2013 Permissible load capacity ME = f(L) <\/td>\n<\/tr>\n \n 31<\/td>\n Figure B.6 \u2013 Assembly of two identical “C” section railsAssessment of the deflection <\/td>\n<\/tr>\n \n 32<\/td>\n B.3.3 For rails other than steel rails
Figure B.7 \u2013 Assembly of two identical “C” section railsPermissible stress ME = f(L) for H = 100 mm <\/td>\n<\/tr>\n\n 33<\/td>\n Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" \n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2017<\/td>\n 34<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":250295,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[517,2641],"product_tag":[],"class_list":{"0":"post-250287","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-130-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/250287","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/250295"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=250287"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=250287"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=250287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}