1、BRITISH STANDARD BS6518:1984 EN50041 Specification for Low voltage switchgear and controlgear for industrial use Control switches Position switches42.5 80 Dimensions and characteristics UDC 621.316.542:621.3.027.2BS6518:1984 This BritishStandard was published under the authorityofthe Board ofBSIandc
2、omes into effect on 29June1984 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference PEL/10 Draft for comment79/25617 DC ISBN 0 580 13916 6 Cooperating organizations The European Committee for Electrotechnical Standardization (CENELEC), under whose supervi
3、sion this European Standard was prepared, comprises the National Committees of the following countries. Austria Luxemburg Belgium Netherlands Denmark Norway Finland Portugal France Spain Germany Sweden Greece Switzerland Ireland United Kingdom Italy Amendments issued since publication Amd. No. Date
4、of issue CommentsBS6518:1984 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover Text of EN50041 3 National appendix A 12 National appendix B Inside back coverBS6518:1984 ii BSI 12-1999 A British Standard does not purport to include all the necessary provisions of a contract. Us
5、ers of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, pages2 to12, an inside
6、back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN50041 Edition1 July1981 UDC: 621.316.542:621.3.027.2
7、Key words: Electrical switchgear and controlgear, industrial use, low voltage, control switch, switch, position switch, dimensions, characteristics, operation point English version Low voltage switchgear and controlgear for industrial use Control switches Position switches42,5 80 Dimensions and char
8、acteristics Appareillage industriel basse tension Auxiliaires de commande. Interrupteurs de position42,5 80. Dimensions et caractristiques Industrielle Niederspannungs-Schaltgerte Hilfsstromschalter. Positionsschalter 42,5 80. Masse und Kennwerte This European Standard was accepted by CENELEC on 198
9、1-07-07. The CENELEC members are bound to adhere to the CENELEC Internal Regulations which specify under which conditions this European Standard has to be given, without any alteration, the status of a national standard. Up-to-date lists and bibliographical references concerning such national standa
10、rds may be obtained on application to the CENELEC General Secretariat or to any CENELEC member. This European Standard is established by CENELEC in three official versions (English, French, German). A translation made by another member under its own responsibility, in its own language, and notified
11、to CENELEC has the same status. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CENELEC European Committee for Electrot
12、echnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels Copyright reserved to all CENELEC membersEN50041:1981 BSI 12-1999 2 Contents Page 1 Scope 3 2 Dimensions 3 3 Designation
13、9 4 Contact elements and terminal marking 10 5 Terminal for protective conductor 10 6 Degree of protection 10 Figure 1 Dimensions of enclosure 4 Figure 2 Roller lever actuator 5 Figure 3 Rounded plunger actuator 5 Figure 4 Roller plunger actuator 6 Figure 5 Rod lever actuator 7 Figure 6 Rounded plun
14、ger side actuator 8 Figure 7 Roller plunger side actuator 9EN50041:1981 BSI 12-1999 3 This European Standard has been prepared by Technical Committee CENELEC TC 17X. 1 Scope This standard applies to certain position switches with automatic return actuator for industrial use, the standardized dimensi
15、ons of which and the characteristics necessary for their application are given below. Electric characteristics shall conform to those of IEC Publication337 Control switches. This standard includes the six following types: roller lever (form A), rounded plunger (form B), plunger with roller (form C),
16、 rod lever (form D), rounded plunger side actuator (form F), roller plunger side actuator (form G). The devices are fitted with either snap action designated (1) in clause3 or slow make and break, designated(2) in clause3, mechanisms. 2 Dimensions The dimensions shown in Figure 1, Figure 2, Figure 3
17、, Figure 4, Figure 5, Figure 6 and Figure 7 are applicable to switches in a new condition. The operating point corresponds to the opening of the break-contact element. The operating point can drift during the life of the switch. The manufacturer shall indicate the direction of the drift. The differe
18、ntial travel (difference between the operating and reset points) of a position switch with snap action mechanism shall be stated by the manufacturer; it is shown as H in Figure 2, Figure 3, Figure 4, Figure 6 and Figure 7, and differs dependent upon the type of actuator. Apart from the dimensions in
19、dicated, the design of these devices is not restricted. Dimensions are given in mm.EN50041:1981 4 BSI 12-1999 2.1 Enclosure Figure 1 Dimensions of enclosureEN50041:1981 BSI 12-1999 5 2.2 Roller lever actuator (form A) 2.3 Rounded plunger actuator (form B) Figure 2 Roller lever actuator Figure 3 Roun
20、ded plunger actuatorEN50041:1981 6 BSI 12-1999 2.4 Roller plunger actuator (form C) Figure 4 Roller plunger actuatorEN50041:1981 BSI 12-1999 7 2.5 Rod lever actuator (form D) The rod diameter is not specified, but the preferred value is6mm. Figure 5 Rod lever actuatorEN50041:1981 8 BSI 12-1999 2.6 R
21、ounded plunger side actuator (form F) The rod can be moved along its length and can be offset from the centre of the rotation axis by20mm maximum. Figure 6 Rounded plunger side actuatorEN50041:1981 BSI 12-1999 9 2.7 Roller plunger side actuator (form G) 3 Designation Example of designation of a posi
22、tion switch42,5 80 with a roller lever actuator (form A) with snap action mechanism (1): Position switch EN50041 A1. Example of designation of a position switch42,5 80 with rod lever actuator (form D) with slow make and break mechanism (2): Position switch EN50041 D2. Figure 7 Roller plunger side ac
23、tuatorEN50041:1981 10 BSI 12-1999 4 Contact elements and terminal marking Position switches shall have a make contact and a break contact (distinctive number11in accordance with European Standard EN50005). The terminal marking shall be in accordance with European Standard EN50013. 5 Terminal for pro
24、tective conductor Position switches with metal enclosures shall have a terminal for the protective conductor; this terminal shall be mounted inside the enclosure in the immediate vicinity of the cable entry and marked as appropriate. 6 Degree of protection The minimum degree of protection required s
25、hall conform to IP65, tested in accordance with IEC-Publication529 or144 when this latter is revised.11 blankBS6518:1984 BSI 12-1999 12 National appendix A The United Kingdom participation in the preparation of this European Standard was entrusted by the Power Electrical Engineering Standards Commit
26、tee (PEL/-) to Technical Committee PEL/10 upon which the following bodies were represented: Association of Control Manufacturers TACMA (BEAMA Ltd) Association of Short Circuit Testing Authorities Association of Supervisory and Executive Engineers BEAMA Transmission & Distribution Association ERA Tec
27、hnology Ltd Electrical Contractors Association Electricity Supply Industry in England and Wales Electronic Components Industry Federation Electrical Installation Equipment Manufacturers Association (BEAMA Ltd) GAMBICA (BEAMA Ltd) Health and Safety Executive Institution of Electrical Engineers Nation
28、al Economic Development OfficeBS6518:1984 BSI 12-1999 National appendix B The BritishStandards corresponding to the IEC Publications and European Standards referred to in EN50041 are as follows. a) With reference to clause 1, the various parts of IEC337 have been published as the following Parts and
29、 Sections of BS4794, “Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including1000V a.c. and1200V d.c.)”. b) With reference to clause4, the European Standards referred to have been published as the followi
30、ng BritishStandards. EN50005:1976 published as BS5472:1977 Specification for low voltage switchgear and controlgear for industrial use. Terminal marking and distinctive number. General rules. EN50013:1977 published as BS5581:1978 Specification for low voltage switchgear and controlgear for industria
31、l use. Terminal marking and distinctive number for particular control switches c) With reference to clause6, the BritishStandards corresponding to the IEC Publications referred to are as follows. IEC337-1:1970, BS4794-1:1979 IEC337-1A:1973 and General requirements IEC337-1B:1975 (Identical) IEC337-2
32、:1972 BS4794-2 Special requirements for specific types of control switches Section2.1:1977 Push-button and related control switches (Identical) IEC337-2A:1973 Section2.2:1977 Additional requirements for rotary control switches (Identical) IEC337-2B:1976 Sections2.3 and2.4:1977 Section2.3 Contactor r
33、elays Section2.4 Pilot switches (Identical) IEC337-2C:1977 Sections2.5 and2.6:1977 Section2.5 Indicator lights Section2.6 Standardization of fixing hole of single hole mounted push-buttons and indicator lights (Identical) IEC144:1963 BS5420:1977 Specification for degrees of protection of enclosures
34、of switchgear and controlgear for voltages up to and including1000V a.c. and1200V d.c. (Identical) IEC529:1976 BS5490:1977 Specification for degrees of protection provided by enclosures (Identical)BS6518:1984 EN50041 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the
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