1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Electromechanical contactorsfor household and similar purposesBS EN 61095:2009National forewordThis British Stand
2、ard is the UK implementation of EN 61095:2009. It is identi-cal to IEC 61095:2009. It supersedes BS EN 61095:1993 which is withdrawn.The UK participation in its preparation was entrusted by Technical CommitteePEL/17, Switchgear, controlgear, and HV-LV co-ordination, to SubcommitteePEL/17/2, Low volt
3、age switchgear and controlgear.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580 67852 3ICS
4、 29.120.99; 29.130.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 May 2009Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN
5、 61095:2009EUROPEAN STANDARD EN 61095 NORME EUROPENNE EUROPISCHE NORM March 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: avenue Marnix 17, B - 1000 Brussels 2
6、009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61095:2009 E ICS 29.120.99; 29.130.20 Supersedes EN 61095:1993 + A1:2000English version Electromechanical contactors for household and similar purposes (IEC 61095:2009) Contacteu
7、rs lectromcaniques pour usages domestiques et analogues (CEI 61095:2009) Elektromechanische Schtze fr Hausinstallationen und hnliche Zwecke (IEC 61095:2009) This European Standard was approved by CENELEC on 2009-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations whi
8、ch stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European
9、 Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the
10、national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, S
11、weden, Switzerland and the United Kingdom. BS EN 61095:2009EN 61095:2009 - 1 - Foreword The text of document 17B/1640/FDIS, future edition 2 of IEC 61095, prepared by SC 17B, Low-voltage switchgear and controlgear, of IEC TC 17, Switchgear and controlgear, in conjunction with SC 23E, Circuit-breaker
12、s and similar equipment for household use, of IEC TC 23, Electrical accessories, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61095 on 2009-03-01. This European Standard supersedes EN 61095:1993 + corrigendum March 1993 + A1:2000 + corrigendum April 2001. EN 61095
13、:2009 includes the following significant technical changes with respect to EN 61095:1993: deletion of switching overvoltages requirements; addition of a new utilization category AC-7c: switching of compensated electric discharge lamp control; measuring of Uimprequired, but the marking is not require
14、d if Uimpequal to 4 kV; improvement regarding marking concerning direction of movement; improvement of dielectric properties; test of resistance to humidity referred to EN 60068-2-78 instead of HD 323.2.3 S2; amendment to Table B.1 regarding test sequences; deletion of Table F.2 regarding the corres
15、pondence between the nominal voltage of the supply system and the contactor rated impulse withstand voltage; addition of a new Annex H (normative): degrees of protection of enclosed contactor; addition of a new Annex I (normative): requirements and tests for equipment with protective separation. The
16、 following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-03-01 Annex ZA has
17、been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61095:2009 was approved by CENELEC as a European Standard without any modification. _ BS EN 61095:2009- 2 - EN 61095:2009 Annex ZA (normative) Normative references to international publications with their correspo
18、nding European publications 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. NOTE When an internat
19、ional publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60028 1925 International standard of resistance for copper - - IEC 60050-151 2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical
20、and magnetic devices - - IEC 60050-441 A1 1984 2000 International Electrotechnical Vocabulary (IEV) - Chapter 441: Switchgear, controlgear and fuses - - IEC 60050-604 A1 1987 1998 International Electrotechnical Vocabulary (IEV) - Chapter 604: Generation, transmission and distribution of electricity
21、- Operation - - IEC 60050-826 2004 International Electrotechnical Vocabulary (IEV) - Part 826: Electrical installations - - IEC 60068-2-78 2001 Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state EN 60068-2-78 2001 IEC 60073 2002 Basic and safety principles for man-machine i
22、nterface, marking and identification - Coding principles for indicators and actuators EN 60073 2002 IEC 60085 2007 Electrical insulation - Thermal evaluation and designation EN 60085 2008 IEC 60099-1 (mod) A1 1991 1999 Surge arresters - Part 1: Non-linear resistor type gapped surge arresters for a.c
23、. systems EN 60099-1 A1 1994 1999 IEC 60112 2003 Method for the determination of the proof and the comparative tracking indices of solid insulating materials EN 60112 2003 IEC 60216 Series Electrical insulating materials - Properties of thermal endurance EN 60216 Series IEC 60364-4-44 2007 Low volta
24、ge electrical installations - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances - - IEC 60417 Data-base Graphical symbols for use on equipment - - BS EN 61095:2009EN 61095:2009 - 3 - Publication Year Title EN/HD Year IEC 60445 (mod) 2006 Basi
25、c and safety principles for man-machine interface, marking and identification - Identification of equipment terminals and conductor terminations EN 60445 2007 IEC 60447 2004 Basic and safety principles for man-machine interface, marking and identification - Actuating principles EN 60447 2004 IEC 605
26、29 A1 1989 1999 Degrees of protection provided by enclosures (IP Code) EN 60529 + corr. May A1 1991 1993 2000 IEC 60664-1 2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests EN 60664-1 2007 IEC 60695-2-10 2000 Fire hazard testing - Part
27、2-10: Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedure EN 60695-2-10 2001 IEC 60695-2-11 2000 Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products EN 60695-2-11 2001 IEC 60695-11-10 A1 1999 2003
28、Fire hazard testing - Part 11-10: Test flames - 50 W horizontal and vertical flame test methods EN 60695-11-10 A1 1999 2003 IEC 60947-1 2007 Low-voltage switchgear and controlgear - Part 1: General rules EN 60947-1 2007 IEC 60947-4-1 A1 A2 2000 2002 2005 Low-voltage switchgear and controlgear - Part
29、 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters EN 60947-4-1 A1 A2 2001 2002 2005 IEC 60947-5-1 2003 Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices and switching elements - Electromechanical control circuit devices EN 60947-5-1 + corr
30、. July 2004 2005 IEC 61140 A1 (mod) 2001 2004 Protection against electric shock - Common aspects for installation and equipment EN 61140 A1 2002 2006 IEC 61180 Series High-voltage test techniques for low-voltage equipment EN 61180 Series ISO 2039-2 1987 Plastics - Determination of hardness - Part 2:
31、 Rockwell hardness EN ISO 2039-2 1999 ISO 7000 2004 Graphical symbols for use on equipment - Index and synopsis - - BS EN 61095:2009 4 61095 IEC:2009 CONTENTS INTRODUCTION.8 1 Scope.9 2 Normative references .9 3 Terms and definitions .11 3.1 General terms .11 3.2 Switching devices13 3.3 Parts of swi
32、tching devices .15 3.4 Operation of switching devices 18 3.5 Characteristic quantities19 4 Classification24 5 Characteristics of contactors 24 5.1 Summary of characteristics .24 5.2 Type of contactor 24 5.2.1 Number of poles 24 5.2.2 Method of control.24 5.3 Rated and limiting values for main circui
33、ts.24 5.3.1 General .24 5.3.2 Rated voltages 24 5.3.3 Currents or powers 25 5.3.4 Rated frequency 26 5.3.5 Rated duties 26 5.3.6 Normal load and overload characteristics 27 5.3.7 Rated conditional short-circuit current .28 5.4 Utilization category28 5.4.1 General .28 5.4.2 Assignment of utilization
34、categories based on the results of tests28 5.5 Control circuits 29 5.6 Auxiliary circuits 29 5.7 Co-ordination with short-circuit protective devices .29 6 Product information 29 6.1 Nature of information.29 6.1.1 Identification29 6.1.2 Characteristics, basic rated values and utilization30 6.2 Markin
35、g .30 6.3 Instructions for installation, operation and maintenance 31 7 Normal service, mounting and transport conditions.31 7.1 Normal service conditions .31 7.1.1 Ambient air temperature 31 7.1.2 Altitude32 7.1.3 Atmospheric conditions32 7.1.4 Normal electromagnetic environmental conditions .33 7.
36、2 Conditions during transport and storage 33 7.3 Mounting .33 8 Constructional and performance requirements33 8.1 Constructional requirements33 BS EN 61095:200961095 IEC:2009 5 8.1.1 General .33 8.1.2 Materials .33 8.1.3 Strength of screws or nuts other than those on terminals which are intended to
37、be operated during installation or maintenance .34 8.1.4 Vacant.35 8.1.5 Actuator.35 8.1.6 Indication of the OFF and ON positions .35 8.1.7 Terminals 36 8.1.8 Additional requirements for contactors provided with a neutral pole.37 8.1.9 Provisions for earthing.37 8.1.10 Enclosures 38 8.1.11 Degrees o
38、f protection of enclosed contactors 39 8.1.12 Resistance to impact .39 8.1.13 Durability of markings39 8.2 Performance requirements 40 8.2.1 Operating conditions40 8.2.2 Temperature-rise.40 8.2.3 Dielectric properties.43 8.2.4 Normal load and overload performance requirements 45 8.2.5 Co-ordination
39、with short-circuit protective devices .47 8.3 Electromagnetic compatibility 47 8.3.1 Immunity .47 8.3.2 Emission .47 9 Tests 48 9.1 Types of test .48 9.1.1 General .48 9.1.2 Type tests .48 9.1.3 Routine tests .48 9.1.4 Sampling tests for clearance verification49 9.2 Compliance with constructional re
40、quirements 49 9.2.1 General .49 9.2.2 Materials .49 9.2.3 Test on screws or nuts other than those on terminals which are intended to be operated during installation or maintenance .52 9.2.4 Verification of the degrees of protection of enclosed contactors.52 9.2.5 Mechanical properties of terminals 5
41、2 9.2.6 Test of resistance to impact.55 9.2.7 Test of durability of marking 57 9.3 Compliance with performance requirements 58 9.3.1 Test sequences .58 9.3.2 General test conditions58 9.3.3 Performance under no load, normal load and overload conditions .60 9.3.4 Performance under short-circuit condi
42、tions 71 9.3.5 Overload current withstand capability 76 9.3.6 Routine tests .76 Annex A (normative) Terminal marking and distinctive number 95 Annex B (normative) Test sequences and number of samples .100 Annex C (normative) Description of a method for adjusting the load circuit 102 Annex D (normati
43、ve) Determination of short-circuit power-factor104 BS EN 61095:2009 6 61095 IEC:2009 Annex E (normative) Measurement of creepage distances and clearances 106 Annex F (normative) Correlation between the nominal voltage of the supply system and the rated impulse withstand voltage of a contactor .111 A
44、nnex G (normative) Hot wire ignition test .113 Annex H (normative) Degrees of protection of enclosed contactor .115 Annex I (normative) Requirements and tests for equipment with protective separation.122 Figure 1 Thread-forming tapping screw77 Figure 2 Thread-cutting tapping screw .77 Figure 3 Ball-
45、pressure test apparatus (see 9.2.2.3.1).77 Figure 4 Test equipment for flexion test (see 9.2.5.3) 78 Figure 5 Gauges of form A and form B (see 9.2.5.5) 78 Figure 6 Pendulum for mechanical impact test apparatus (striking element) (see 9.2.6.2.1) 79 Figure 7 Mounting support for sample, for mechanical
46、 impact test (see 9.2.6.2.1)80 Figure 8 Pendulum hammer test apparatus (see 9.2.6.2.1) 81 Figure 9 Sphere test apparatus (see 9.2.6.2.2) 81 Figure 10 Jointed test finger (according to IEC 60529).82 Figure 11 Diagram of the test circuit for the verification of making and breaking capacities of a sing
47、le-pole contactor on single-phase a.c83 Figure 12 Diagram of the test circuit for the verification of making and breaking capacities of a two-pole contactor on single-phase a.c84 Figure 13 Diagram of the test circuit for the verification of making and breaking capacities of a three-pole contactor 85
48、 Figure 14 Diagram of the test circuit for the verification of making and breaking capacities of a four-pole contactor 86 Figure 15 Schematic illustration of the recovery voltage across contacts of the first phase to clear (see 9.3.3.5.2, e) under ideal conditions .87 Figure 16 Diagram of a load cir
49、cuit adjustment method88 Figure 17 Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a single-pole contactor on single-phase a.c. 89 Figure 18 Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a two-pole contactor on single-phase a.c. 90 Figure 19 Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a three-pole contacto
