EN 50013-1977 en Low voltage switchgear and controlgear for industrial use Terminal marking and distinctive number for particular control switches《工业用低压开关和控制设备 特殊控制开关辅助触点的接线端子标志和参数.pdf
《EN 50013-1977 en Low voltage switchgear and controlgear for industrial use Terminal marking and distinctive number for particular control switches《工业用低压开关和控制设备 特殊控制开关辅助触点的接线端子标志和参数.pdf》由会员分享,可在线阅读,更多相关《EN 50013-1977 en Low voltage switchgear and controlgear for industrial use Terminal marking and distinctive number for particular control switches《工业用低压开关和控制设备 特殊控制开关辅助触点的接线端子标志和参数.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
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
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