1、 - EN*50*0L3 77 m 390q583 000L03b L m EUROPEAN STANDARD EN50013 NORME EUROPENNE EUROPAISCHE NORM Edition 1 February 1977 UDC 621.316.54 : 621.3.027.2 : 003.62 Key words: electrical switchgear and controlgear - industrial use - low voltage -terminal - marking - distinctive number - auxiliary contact
2、-control switch - push button - limit switch - contactor relay English version Low voltage switchgear and controlgear for industrial use Terminal marking and distinctive number for particular control switches Appareillage industriel basse tension. Marquage des bornes et nombre caracteristique pour d
3、es auxiliaires de commande particuliers Industrielle Niederspannungs-Schaltgerte. Anschlussbezeichnungen und Kennzahlen fr bestimmte Befehlsgerte This European Standard was accepted by CENELEC on 31 January 1977, CENELEC members are committed in accordance with CENELEC Internal Regulations to give t
4、his European Standard the status of a national standard without any alteration. Uplo-date lists and bibliographical references concerning such national standards may be obtained on application to the CENELC General Secretariat or to any CENELEC member. This European Standard is established by CENELE
5、C in three official versions (English, French, German). A translation made by another member under its own responsibility, in its own language, and notified to CENELEC has the same status. CEN ELEC members are the national eiectrotechnical committees of Austria, Belgium, Denmark, Finland, France, Ge
6、rmany, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr elektrotechnische Normung General Secretariat: rue Brderode, 2,
7、B-I O00 Brussels O Copyright reserved to all CENELEC members EN*50*013 77 W 3404583 0001037 3 W EN 50 013 Page 2 This European Standard has been prepared by CENELEC Technical Committee 17X. Foreword Control switch contacts may be given a distinctive number and terminal marking in accordance with the
8、 General rules, EN 50 005. On this basis, it is desirable to lay down more detailed rules for particular control switches, such as those defined in clause 1. 1. Scope This standard applies to control switches according to IEC Standard 337-1, with two definite positions (such as push- buttons, limit-
9、switches and similar devices), irrespective of their construction, having terminal marking in accordance with the corresponding marking of contactor relays designated by the distinctive letter E (see EN 50 O1 1). The use of this standard is recommended where terminal marking is a requirement of the
10、relevant standard for control switches, or is usual practice. 2, Terminal marking rule The contact terminai marking of a control switch is formed, in principle, by two figures. 2.1 Function number. The unit number is a function number, .e. 1 - 2 for break-contacts; 3 - 4 for make-contacts; 1 - 2 - 4
11、 for change-over contacts. 2.2 Sequence number. The figure of the tens is a continuous sequence number beginning with 1 (except for control switches designated O1 ), independently of the contact function. The terminals belonging to the same contacts are marked with the same sequence number. The sequ
12、ence number may be omitted from the terminai marking only if additional information provided by the manufacturer or the user clearly gives such number. I *3 2 i I I I I 13 23 1L 22 32 44 I 02 I 2 *L -4 L _- L - _I I Device Diagram NOTE: The dots before the function shown in the above examples are us
13、ed merely to show the relationship, and do not need to be used in Dractice. EN*50*0L3 77 m 3YOq583 OOOLO3B 5 m EN 50 013 Page 3 3, Distinctive number The quantity and type of the contact elements of a control switch according to this standard are indicated by a distinctive number. In accordance with
14、 EN 50 005, clause 6, the first figure of the distinctive number gives the quantity of make-contact elements the second one the quantity of break-contact elements. The third one, if any, gives the quantity of change-over contact elements in the control switch. 4. Terminal numbering sequence For cont
15、rd switches having the same distinctive number, the terminal marking is specified according to table 1. The position of the contact elements on the control switch may not correspond to that shown on the diagram of table 1. Table 1. Diagrams of control switches - cik 52 10 20 30 40 301 10; Contact el
16、ements 13 14 13 23 % 14 24 1323 33 w 14 24 34 13 23 33 43 14 24 34 44 %Po 12 14 il 21 12 14 22 24 Contact e I em en t s 13 21 14 22 14 22 34 13 21 33 43 14 22 34i4 contact elements a 14 2232 13 21 31 43 +H=% I4 22 32 44 Contact elements 13 21 31 41 _ 14 22 3242 Contact elements 4 22 44 12 22 12 22 3
17、2 11 21 31 41 12 22 32 42 - EN*50*OL3 77 3404583 OOOL037 7 W EN 50 013 National appendix A The United Kingdom participation in the preparation of this European Standard came under the direction of the Power Electrical Engineering Standards Committee of BSI. The committee consists of representatives
18、from the following Government departments and scientific and industrial organizations: “Association of Short Circuit Testing Authorities *British Electrical and Allied Manufacturers Association (BEAMA) Associated Offices Technical Committee British Railways Board British Steel Corporation Department
19、 of Energy (Electricity) “Electrical Contractors Association Electrical Contractors Association of Scotland “Electrical Research Association “Electricity Supply Industry in England and Wales “Engineering Equipment Users Association “Institution of Electrical Engineers “Ministry of Defence *National
20、Coal Board The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee involved with the work on this standard: Association of Control Manufacturers (BEAMA) Association of Supervisory and Executive Engineers Control and Automat
21、ion Manufacturers Associ_ation (BEAMA) Copper Development Association Department of the Environment (PSA) Electrical Installation Equipment Manufacturers Association (BEAMA) Electronic Components industry Federation Health and Safety Executive The Transmission & Distribution Association (BEAMA) Trad
22、es Union Congress National appendix B With reference to the Foreword and clause 3, EN 50 005 has been published as BS 5472 Low voltage switchgear and controlgear for industrial use. Terminal marking and distinctive number. General rules. With reference to clause 1, EN 50 O1 I has been published as BS 5583 Low voltage switchgear and controlgear for industrial use. Terminal marking, distinctive number and distinctive letter for particular contactor relays! With reference to clause 1, Part 1 General requirements of BS 4794 Control switches is technically equivalent to IEC 337-1.
