EN IEC 60947-5-2:2020
(Main)Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches
Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches
IEC 60947-5-2:2019 applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects with a magnetic field. This fourth edition cancels and replaces the third edition published in 2007 and Amendment 1:2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
update of the scope;
adaptation and update of the construction requirements according to IEC Guide 116 (e.g. material requirements, artificial optical radiation, instruction requirements, hot surface, unattended operation, foreseeable misuse…);
modification of the specifications concerning the sensing range and operating distance;
new definitions for photoelectric proximity switch type D with background suppression;
integration of the requirements and test procedures of photoelectric proximity switch type D with background suppression;
update of EMC requirements in Table 9 and Table 10;
integration of environmental information requirements and environmental condition by referencing Annexes O, W and Q of IEC 60947-1:2007, IEC 60947-1:2007/AMD1:2010 and IEC 60947-1:2007/AMD2:2014;
modification of impulse withstand voltage test (5.3.1.3, 9.3.3.4.5);
modification of the references in the (normative) standard body to the (informative) Annex A;
major update of Annex A (definitions update, new dimensions and shapes);
update of C.9.1.1;
update of Annex D in order to consider new connector types and normative references;
update of Annex F (additional symbols for photoelectric proximity switches).
Niederspannungsschaltgeräte - Teil 5-2: Steuergeräte und Schaltelemente - Näherungsschalter
Appareillage à basse tension - Partie 5-2: Appareils et éléments de commutation pour circuits de commande - Détecteurs de proximité
L’IEC 60947-5-2:2019 s’applique aux détecteurs de proximité inductifs et capacitifs qui détectent la présence d’objets métalliques et/ou non métalliques, aux détecteurs de proximité ultrasoniques qui détectent la présence d’objets réfléchissant les ultrasons, aux détecteurs de proximité photoélectriques qui détectent la présence d’objets et aux détecteurs de proximité magnétiques non mécaniques qui détectent la présence d’objets avec un champ magnétique. Cette quatrième édition annule et remplace la troisième édition parue en 2007 et l'Amendement 1:2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
mise à jour du domaine d’application;
adaptation et mise à jour des exigences relatives à la construction, conformément à l’IEC Guide 116 (par exemple les exigences relatives aux matériaux, le rayonnement optique artificiel, les exigences relatives aux instructions, les surfaces chaudes, le fonctionnement sans surveillance, les cas prévisibles d’usage inapproprié…);
modification des spécifications concernant le domaine de détection et la portée;
nouvelles définitions pour le détecteur de proximité photoélectrique de type D à effacement d’arrière-plan;
intégration des exigences et des modes opératoires d’essai relatifs au détecteur de proximité photoélectrique de type D à effacement d’arrière-plan;
mise à jour des exigences de CEM dans le Tableau 9 et le Tableau 10;
intégration des exigences relatives aux données d’environnement et aux conditions d’environnement, en faisant référence aux Annexes O, W et Q de l’IEC 60947-1:2007, l’IEC 60947-1:2007/AMD1:2010 et l’IEC 60947-1:2007/AMD2:2014;
modification de l’essai de tension assignée de tenue aux chocs (5.3.1.3, 9.3.3.4.5);
modification du statut normatif des références données dans l’Annexe A, devenant une annexe informative;
mise à jour majeure de l’Annexe A (mise à jour des définitions, nouvelles dimensions et formes);
mise à jour de C.9.1.1;
mise à jour de l’Annexe D afin de tenir compte des nouveaux types de connecteurs et des nouvelles références normatives;
mise à jour de l’Annexe F (ajout de symboles pour les détecteurs de proximité photoélectriques).
Nizkonapetostne stikalne in krmilne naprave - 5-2. del: Krmilne naprave in stikalni elementi - Približevalna stikala (IEC 60947-5-2:2019)
General Information
- Status
- Published
- Publication Date
- 26-Mar-2020
- Technical Committee
- CLC/TC 121A - Low-voltage switchgear and controlgear
- Drafting Committee
- IEC/SC 121A - Low-voltage switchgear and controlgear
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 27-Mar-2020
- Completion Date
- 27-Mar-2020
Relations
- Effective Date
- 31-Mar-2020
- Effective Date
- 31-Mar-2020
- Effective Date
- 11-Jun-2019
Overview
EN IEC 60947-5-2:2020 is the European adoption of IEC 60947-5-2:2019 covering proximity switches used with low-voltage switchgear and controlgear. The standard applies to inductive and capacitive proximity switches (metallic and non‑metallic detection), ultrasonic switches, photoelectric switches, and non‑mechanical magnetic proximity switches. The fourth edition is a technical revision that updates scope, construction requirements, sensing-range specifications, EMC requirements and test procedures, and introduces new definitions and test procedures for photoelectric type D (background suppression).
Key topics and requirements
- Scope and device types: Defines applicability for inductive, capacitive, ultrasonic, photoelectric and non‑mechanical magnetic proximity switches.
- Construction and safety: Updated construction requirements aligned with IEC Guide 116 (material requirements, hot surfaces, unattended operation, foreseeable misuse, instruction requirements, artificial optical radiation).
- Sensing performance: Modified specifications for sensing range and operating distance and new definitions/tests for photoelectric proximity switches with background suppression (type D).
- EMC and electrical tests: Revised EMC requirements (Tables 9 & 10), impulse withstand voltage modifications, and references to EMC test standards (IEC 61000 series).
- Environmental and mechanical tests: Integration of environmental information and conditions by referencing Annexes of IEC 60947-1 and environmental test standards (IEC 60068 series).
- Annex updates: Major update of Annex A (definitions, dimensions/shapes), Annex D (connector types and normative references), Annex F (photoelectric symbols), and updates to testing clauses.
- Safety and regulatory linkage: Contains normative references and relationships to EU Directives (EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU) and related harmonized standards.
Practical applications
- Selection, design and manufacturing of proximity switches for industrial automation, conveyor systems, robotics, packaging, material handling and safety interlocks.
- Test laboratories and certification bodies use the standard’s test procedures for conformity and EMC verification.
- System integrators and machine builders reference the standard when specifying sensors to ensure compatibility, safety and regulatory compliance.
- Technical writers and documentation teams use the construction and instruction requirements to prepare compliant manuals and safety information.
Who should use this standard
- Sensor and switch manufacturers
- Control-system designers and engineers
- Test and certification laboratories
- Machine builders, OEMs and integrators
- Compliance officers and procurement teams
Related standards
- IEC/EN 60947-1 (general rules)
- IEC 61000 series (EMC testing)
- IEC 60068 series (environmental testing)
- IEC 60825 / EN 62471 (optical/photobiological safety)
- IEC 61076 series (connectors)
EN IEC 60947-5-2:2020 is essential for anyone specifying, producing or verifying proximity sensing devices in low-voltage control applications, ensuring reliable performance, safety and regulatory conformity.
Frequently Asked Questions
EN IEC 60947-5-2:2020 is a standard published by CLC. Its full title is "Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches". This standard covers: IEC 60947-5-2:2019 applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects with a magnetic field. This fourth edition cancels and replaces the third edition published in 2007 and Amendment 1:2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: update of the scope; adaptation and update of the construction requirements according to IEC Guide 116 (e.g. material requirements, artificial optical radiation, instruction requirements, hot surface, unattended operation, foreseeable misuse…); modification of the specifications concerning the sensing range and operating distance; new definitions for photoelectric proximity switch type D with background suppression; integration of the requirements and test procedures of photoelectric proximity switch type D with background suppression; update of EMC requirements in Table 9 and Table 10; integration of environmental information requirements and environmental condition by referencing Annexes O, W and Q of IEC 60947-1:2007, IEC 60947-1:2007/AMD1:2010 and IEC 60947-1:2007/AMD2:2014; modification of impulse withstand voltage test (5.3.1.3, 9.3.3.4.5); modification of the references in the (normative) standard body to the (informative) Annex A; major update of Annex A (definitions update, new dimensions and shapes); update of C.9.1.1; update of Annex D in order to consider new connector types and normative references; update of Annex F (additional symbols for photoelectric proximity switches).
IEC 60947-5-2:2019 applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects with a magnetic field. This fourth edition cancels and replaces the third edition published in 2007 and Amendment 1:2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: update of the scope; adaptation and update of the construction requirements according to IEC Guide 116 (e.g. material requirements, artificial optical radiation, instruction requirements, hot surface, unattended operation, foreseeable misuse…); modification of the specifications concerning the sensing range and operating distance; new definitions for photoelectric proximity switch type D with background suppression; integration of the requirements and test procedures of photoelectric proximity switch type D with background suppression; update of EMC requirements in Table 9 and Table 10; integration of environmental information requirements and environmental condition by referencing Annexes O, W and Q of IEC 60947-1:2007, IEC 60947-1:2007/AMD1:2010 and IEC 60947-1:2007/AMD2:2014; modification of impulse withstand voltage test (5.3.1.3, 9.3.3.4.5); modification of the references in the (normative) standard body to the (informative) Annex A; major update of Annex A (definitions update, new dimensions and shapes); update of C.9.1.1; update of Annex D in order to consider new connector types and normative references; update of Annex F (additional symbols for photoelectric proximity switches).
EN IEC 60947-5-2:2020 is classified under the following ICS (International Classification for Standards) categories: 29.120.40 - Switches; 29.130.20 - Low voltage switchgear and controlgear. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 60947-5-2:2020 has the following relationships with other standards: It is inter standard links to EN 60947-5-2:2007/A1:2012, EN 60947-5-2:2007, EN IEC 60947-5-2:2020/A11:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 60947-5-2:2020 is associated with the following European legislation: EU Directives/Regulations: 2014/30/EU, 2014/35/EU, 2014/53/EU; Standardization Mandates: M/511, M/536, M/552. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN IEC 60947-5-2:2020 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2020
Nadomešča:
SIST EN 60947-5-2:2009
SIST EN 60947-5-2:2009/A1:2013
Nizkonapetostne stikalne in krmilne naprave - 5-2. del: Krmilne naprave in stikalni
elementi - Približevalna stikala (IEC 60947-5-2:2019)
Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching
elements - Proximity switches (IEC 60947-5-2:2019)
Niederspannungsschaltgeräte - Teil 5-2: Steuergeräte und Schaltelemente -
Näherungsschalter (IEC 60947-5-2:2019)
Appareillage à basse tension - Partie 5-2: Appareils et éléments de commutation pour
circuits de commande - Détecteurs de proximité (IEC 60947-5-2:2019)
Ta slovenski standard je istoveten z: EN IEC 60947-5-2:2020
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60947-5-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2020
ICS 29.120.40; 29.130.20 Supersedes EN 60947-5-2:2007 and all of its
amendments and corrigenda (if any)
English Version
Low-voltage switchgear and controlgear - Part 5-2: Control
circuit devices and switching elements - Proximity switches
(IEC 60947-5-2:2019)
Appareillage à basse tension - Partie 5-2: Appareils et Niederspannungsschaltgeräte - Teil 5-2: Steuergeräte und
éléments de commutation pour circuits de commande - Schaltelemente - Näherungsschalter
Détecteurs de proximité (IEC 60947-5-2:2019)
(IEC 60947-5-2:2019)
This European Standard was approved by CENELEC on 2019-11-22. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which 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 CEN-CENELEC
Management Centre or to any CENELEC member.
This European 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60947-5-2:2020 E
European foreword
The text of document 121A/313/FDIS, future edition 4 of IEC 60947-5-2, prepared by SC 121A "Low-
voltage switchgear and controlgear" of IEC/TC 121 "Switchgear and controlgear and their assemblies
for low voltage" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has (dop) 2020-09-27
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2023-03-27
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60947-5-2:2007 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s).
For the relationship with EU Directives see informative Annexes ZZA and ZZB, which are an integral
part of this document.
Endorsement notice
The text of the International Standard IEC 60947-5-2:2019 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60825 (series) NOTE Harmonized as EN 60825 (series)
IEC 61000-3-2:2018 NOTE Harmonized as EN IEC 61000-3-2:2019 (not modified)
IEC 61000-3-3:2013 NOTE Harmonized as EN 61000-3-3:2013 (not modified)
IEC 61000-3-3:2013/A1:2017 NOTE Harmonized as EN 61000-3-3:2013/A1:2019 (not modified)
IEC 61076-2-101 NOTE Harmonized as EN 61076-2-101
IEC 61076-2-104 NOTE Harmonized as EN 61076-2-104
IEC 61076-2-105 NOTE Harmonized as EN 61076-2-105
IEC 62471:2006 NOTE Harmonized as EN 62471:2008 (modified)
IEC 62683-1:2017 NOTE Harmonized as EN 62683-1:2017 (not modified)
ISO 7010 NOTE Harmonized as EN ISO 7010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-6 2007 Environmental testing – Part 2-6: Tests EN 60068-2-6 2008
– Test Fc: Vibration (sinusoidal)
IEC 60068-2-14 2009 Environmental testing – Part 2-14: Tests EN 60068-2-14 2009
– Test N: Change of temperature
IEC 60068-2-27 2008 Environmental testing – Part 2-27: Tests EN 60068-2-27 2009
– Test Ea and guidance: Shock
IEC 60068-2-30 2005 Environmental testing - Part 2-30: Tests - EN 60068-2-30 2005
Test Db: Damp heat, cyclic (12 h + 12 h
cycle)
IEC 60364 series Low-voltage electrical installations HD 60364 series
IEC 60445 2017 Basic and safety principles for man- EN 60445 2017
machine interface, marking and
identification – Identification of
equipment terminals, conductor
terminations and conductors
IEC 60695-2-10 2013 Fire hazard testing - Part 2-10: EN 60695-2-10 2013
Glowing/hot-wire based test methods
- Glow-wire apparatus and common
test procedure
IEC 60695-2-11 2014 Fire hazard testing - Part 2-11: EN 60695-2-11 2014
Glowing/hot-wire based test methods
- Glow-wire flammability test method
for end-products (GWEPT)
IEC 60695-2-12 2010 Fire hazard testing - Part 2-12: EN 60695-2-12 2010
Glowing/hot-wire based test methods -
Glow-wire flammability index (GWFI)
test method for materials
+ A1 2014 + A1 2014
Publication Year Title EN/HD Year
IEC 60825-1 2014 Safety of laser products - Part 1: EN 60825-1 2014
Equipment classification and
requirements
+ AC 2017
IEC 60947-1 2007 Low-voltage switchgear and controlgear EN 60947-1 2007
- Part 1: General rules
+ A1 2010 + A1 2011
+ A2 2014 + A2 2014
IEC 61000-4-2 2008 Electromagnetic compatibility (EMC) - EN 61000-4-2 2009
Part 4-2: Testing and measurement
techniques - Electrostatic discharge
immunity test
IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) - EN 61000-4-3 2006
Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test
+ A1 2007 + A1 2008
+ A2 2010 + A2 2010
IEC 61000-4-4 2012 Electromagnetic compatibility (EMC) - EN 61000-4-4 2012
Part 4-4: Testing and measurement
techniques - Electrical fast
transient/burst immunity test
IEC 61000-4-6 2013 Electromagnetic compatibility (EMC) - EN 61000-4-6 2014
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-
frequency fields
+ AC 2015
IEC 61000-4-8 2009 Electromagnetic compatibility (EMC) - EC 61000-4-8 2010
Part 4-8: Testing and measurement
techniques - Power frequency magnetic
field immunity test
IEC 61000-4-11 2004 Electromagnetic compatibility (EMC) - EN 61000-4-11 2004
Part 4-11: Testing and measurement
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests
+ A1 2017 + A1 2017
IEC 61000-4-13 2002 Electromagnetic compatibility (EMC) - EN 61000-4-13 2002
Part 4-13: Testing and measurement
techniques - Harmonics and
interharmonics including mains signalling
at a.c. power port, low frequency
immunity tests
+ A1 2009 + A1 2009
+ A2 2015 + A2 2016
IEC 61076-2 series Connectors for electronic equipment – EN 61076-2 series
Product requirements – Part 2: Circular
connectors
IEC 61140 - Protection against electric shock - EN 61140 2016
Common aspects for installation
and equipment
Publication Year Title EN/HD Year
Security for industrial automation and
IEC 62443 series EN 62443 series
control systems
IEC 62471 series Photobiological safety of lamps and EN 62471 series
lamp systems
IEC TR 62471-2 2009 Photobiological safety of lamps and - -
lamp systems - Part 2: Guidance on
manufacturing requirements relating to
non-laser optical radiation safety
CISPR 11 (mod) 2015 Industrial, scientific and medical EN 55011 2016
equipment
– Radio-frequency disturbance
characteristics – Limits and methods
of measurement
+ A1 2016 + A1 2017
IEC Guide 117 2010 Electrotechnical equipment - CLC Guide 29 2007
Temperatures of touchable hot surfaces
Annex ZZA
(informative)
Relationship between this European standard and the essential
requirements of Directive 2014/30/EU [2014 OJ L96] aimed to be
covered
This European standard has been prepared under the European Commission standardisation request
C(2016) 7641 final of 30.11.2016 , ('M/552'), as regards harmonised standards in support of Directive
2014/30/EU relating to electromagnetic compatibility, to provide one voluntary means of conforming to
essential requirements of Directive 2014/30/EU of the European Parliament and of the Council of 26
February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic
compatibility [2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZA.1 confers, within the limits
of the scope of this standard, a presumption of conformity with the corresponding essential
requirements of that Directive, and associated EFTA regulations.
Table ZZA.1 — Correspondence between this European standard and the Essential
Requirements set out in Directive 2014/30/EU [2014 OJ L96]
Essential requirements of Clause(s) / sub-clause(s) of
Remarks / Notes
Directive 2014/30/EU this EN
Annex I. 1(a) 8.2.6.1, 8.2.6.3, 9.6.1,
Electromagnetic 9.6.3
disturbances
Annex I. 1(b) 8.2.6.1, 8.2.6.2, 9.6.1, Full coverage of
Electromagnetic immunity 9.6.2 requirements for
conducted and radiated
disturbances in the range
150 kHz to 6 GHz
WARNING 1: Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2: Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
COMMISSION IMPLEMENTING DECISION C(2016) 7641 final of 30.11.2016 on a standardisation request to
the European Committee for Standardisation, to the European Committee for Electrotechnical Standardisation
and to the European Telecommunications Standards Institute as regards harmonised standards in support of
Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of
the laws of the Member States relating to electromagnetic compatibility.
Annex ZZB
(informative)
Relationship between this European standard and the safety
objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be
covered
This European standard has been prepared under a Commission’s standardisation request relating to
harmonised standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means
of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the
Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the
making available on the market of electrical equipment designed for use within certain voltage limits
[2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZB.1 confers, within the limits
of the scope of this standard, a presumption of conformity with the corresponding safety objectives of
that Directive, and associated EFTA regulations.
Table ZZB.1 — Correspondence between this European standard and Annex I of Directive
2014/35/EU [2014 OJ L96]
Safety objectives of Directive Clause(s) / sub-clause(s) of
Remarks/note
2014/35/EU this EN
1 a) 1, 2, 3, 4, 5.3, 5.4, 6.1, 6.2,
6.3, 6.4, 7.1, 8.1, 8.2, 9.1,
9.2, 9.3, ANNEX B
1 b) 1, 2, 3, 4, 5, 6.1, 6.2, 6.3, 7,
8.1, 8.2 ANNEX B
1 c) 1, 2, 3, 4, 5, 6, 7, 8
Also refer to 2 a) to 2 d) and 3
a) to 3 c) in this table
2 a) 1, 2, 3, 4, 5.3, 6.1, 8.1, 8.2,
8.4, 9.1, 9.2, 9.3, ANNEX B,
ANNEX C
2 b) 1, 2, 3, 4, 5.3, 5.4, 6.1, 6.3, This document does not
deal with any specific
7.1, 8.1, 8.2, 9.2, 9.3
requirement on acoustic
noise.
Photobiological
radiation risk (8.1) is
covered by using the
standard informed (EN
60825- 1/EN 62471
(all parts)).
2 c) 1, 2, 3, 4, 5, 6.4, 7, 8.1, 8.4,
9.1, ANNEX B, ANNEX C
Safety objectives of Directive Clause(s) / sub-clause(s) of
Remarks/note
2014/35/EU this EN
2 d) 1, 2, 3, 4, 5.3, 5.4, 6.1 7, 8.1,
8.2, 9.1, 9.2, 9.3, ANNEX B
3 a) 1, 2, 3, 4, 5, 7, 8.4, 9.1, ANNEX B,
ANNEX C
3 b) 1, 2, 3, 4, 5, 8.1 In reference to the scope
of this document the risk
about
biological/chemical
effects and chemical
stress (8.1) is not
recognized and
therefore not covered.
3 c) 1, 2, 3, 4, 5, 7.1, 8.1, 8.2, 9.3
WARNING 1: Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2: Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
IEC 60947-5-2 ®
Edition 4.0 2019-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Low-voltage switchgear and controlgear –
Part 5-2: Control circuit devices and switching elements – Proximity switches
Appareillage à basse tension –
Partie 5-2: Appareils et éléments de commutation pour circuits de commande –
Détecteurs de proximité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.40; 29.130.20 ISBN 978-2-8322-7445-3
– 2 – IEC 60947-5-2:2019 © IEC 2019
CONTENTS
FOREWORD . 9
1 Scope . 12
2 Normative references . 13
3 Terms and definitions . 14
3.1 Basic terms and definitions . 17
3.2 Parts of a proximity switch . 18
3.3 Operation of a proximity switch . 20
3.4 Switching element characteristics . 22
4 Classification . 24
4.1 General . 24
4.2 Classification according to sensing means . 26
4.3 Classification according to the mechanical installation . 26
4.4 Classification according to the construction form and size . 26
4.5 Classification according to switching element function . 26
4.6 Classification according to type of output . 26
4.7 Classification according to method of connection . 26
5 Characteristics . 26
5.1 General . 26
5.1.1 Summary of characteristics . 26
5.1.2 Operation of an inductive or capacitive proximity switch . 26
5.1.3 Operation of an ultrasonic proximity switch . 27
5.1.4 Operation of a photoelectric proximity switch . 27
5.1.5 Operation of a magnetic proximity switch . 27
5.2 Operating conditions . 27
5.2.1 Operating conditions of inductive and capacitive proximity switches . 27
5.2.2 Operating distance (s) of an ultrasonic proximity switch . 28
5.2.3 Operating distance (s) of a photoelectric proximity switch . 29
5.3 Rated and limiting values for the proximity switch and switching element(s) . 31
5.3.1 Voltages . 31
5.3.2 Currents . 31
5.3.3 Rated supply frequency . 32
5.3.4 Frequency of operating cycles (f) . 32
5.3.5 Normal load and abnormal load characteristics . 32
5.3.6 Short-circuit characteristics . 32
5.4 Utilization categories for the switching element . 32
6 Product information . 33
6.1 Nature of information – Identification . 33
6.2 Marking . 34
6.2.1 General . 34
6.2.2 Terminal identification and marking . 34
6.2.3 Functional markings. 34
6.3 Instructions for installation, operation and maintenance . 34
6.4 Environmental information . 35
6.4.1 Environmentally conscious design process (ECD process) . 35
IEC 60947-5-2:2019 © IEC 2019 – 3 –
6.4.2 Procedure to establish material declaration . 35
7 Normal service, mounting and transport conditions . 35
7.1 Normal service conditions . 35
7.1.1 General . 35
7.1.2 Ambient air temperature . 35
7.1.3 Altitude . 36
7.1.4 Climatic conditions . 36
7.2 Conditions during transport and storage . 36
7.3 Mounting . 36
8 Constructional and performance requirements . 36
8.1 Constructional requirements . 36
8.1.1 Materials . 36
8.1.2 Current-carrying parts and their connections . 37
8.1.3 Clearances and creepage distances . 38
8.1.4 Actuation . 38
8.1.5 Void . 38
8.1.6 Void . 38
8.1.7 Terminals . 38
8.1.8 Void . 40
8.1.9 Provisions for protective earthing . 40
8.1.10 Degree of protection . 40
8.1.11 Requirements for proximity switches with integrally connected cables . 40
8.1.12 Class II proximity switches . 41
8.1.13 Chemical stress . 41
8.1.14 Equipment design . 41
8.1.15 Protection against artificial optical radiation . 41
8.1.16 Biological and chemical effects . 42
8.1.17 Unattended operation . 42
8.1.18 Safety related security . 42
8.1.19 Requirements for embedded software . 42
8.2 Performance requirements . 42
8.2.1 Operating conditions . 42
8.2.2 Temperature-rise . 46
8.2.3 Dielectric properties . 47
8.2.4 Ability to make and break under normal load and abnormal load
conditions . 48
8.2.5 Conditional short-circuit current . 49
8.2.6 Electromagnetic compatibility (EMC) . 49
8.3 Physical dimensions . 53
8.4 Shock and vibration and special environmental conditions . 53
8.4.1 Shock . 53
8.4.2 Vibration . 53
8.4.3 Results to be obtained . 53
8.4.4 Special environmental conditions – damp heat, salt mist, vibration and
shock . 54
9 Tests . 54
9.1 Kinds of tests . 54
9.1.1 General . 54
9.1.2 Type tests . 54
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9.1.3 Routine tests . 54
9.1.4 Sampling tests . 54
9.1.5 Special tests . 54
9.2 Compliance with constructional requirements . 55
9.2.1 General . 55
9.2.2 Materials . 55
9.3 Performances . 55
9.3.1 Test sequences . 55
9.3.2 General test conditions . 56
9.3.3 Performance under no load, normal load and abnormal load condition . 58
9.3.4 Performance under short-circuit current conditions . 64
9.4 Testing of operating distances . 65
9.4.1 Inductive, capacitive, non-mechanical magnetic and ultrasonic proximity
switches . 65
9.4.2 Photoelectric proximity switches . 66
9.5 Testing for the frequency of operating cycles . 69
9.5.1 General . 69
9.5.2 Method for measuring the frequency of operating cycles . 70
9.5.3 Results to be obtained . 72
9.5.4 Photoelectric proximity switches . 72
9.6 Verification of the electromagnetic compatibility . 74
9.6.1 General . 74
9.6.2 Immunity . 74
9.6.3 Emission . 75
9.7 Test results and test report . 75
Annex A (informative) Typical dimensions and operating distances of proximity
switches. 76
A.1 MODEL IA, IB – INDUCTIVE CYLINDRICAL PROXIMITY SWITCHES WITH
THREADED BARREL (IA) OR SMOOTH BARREL (IB) WITH CABLE OR
CONNECTOR . 76
A.1.1 (IA, IB) Dimensions . 76
A.1.2 (IA, IB) Rated operating distances . 79
A.1.3 (IA, IB) Installation (mounting) threaded barrel (IA) and smooth barrel
(IB) . 80
A.1.4 (IA, IB) Frequency of operating cycles (f) . 80
A.2 MODEL IC – INDUCTIVE RECTANGULAR PROXIMITY SWITCHES WITH
SQUARE CROSS-SECTION . 81
A.2.1 (IC) Dimensions . 81
A.2.2 (IC) Rated operating distance . 83
A.2.3 (IC) Installation (mounting) . 84
A.2.4 (IC) Frequency of operating cycles (f) . 85
A.3 MODEL ID – INDUCTIVE RECTANGULAR PROXIMITY SWITCHES WITH
RECTANGULAR CROSS-SECTION . 86
A.3.1 (ID) Dimensions . 86
A.3.2 (ID) Installation (mounting) . 87
A.3.3 (IC) Frequency of operating cycles (f) . 88
A.4 MODEL IX (IN, IS, FLATPACK, CUBICAL INDUCTIVE RECTANGULAR AND
CUBICAL PROXIMITY SWITCHES WITH SMALL SIZES) . 88
IEC 60947-5-2:2019 © IEC 2019 – 5 –
A.4.1 (IX) Dimensions . 88
A.4.2 (Flatpack) Dimensions . 89
A.4.3 (Cubical) Dimensions . 90
A.4.4 (IX) Rated operating distance . 92
A.4.5 (IX) Installation (mounting) . 92
A.4.6 (IX) Frequency of operating cycles (f) . 92
A.5 MODEL CA – CAPACITIVE CYLINDRICAL PROXIMITY SWITCHES WITH
THREADED BARREL . 93
A.5.1 (CA) Dimensions . 93
A.5.2 (CA) Rated operating distance (s ) . 94
n
A.5.3 (CA) Installation (mounting) . 94
A.5.4 (CA) Frequency of operating cycles (f) . 95
A.6 MODEL CB – CAPACITIVE PROXIMITY SWITCHES WITH SMOOTH
BARREL . 95
A.7 MODEL CC – CAPACITIVE RECTANGULAR PROXIMITY SWITCHES WITH
SQUARE CROSS-SECTION . 95
A.7.1 (CC) Dimensions . 95
A.7.2 (CC) Rated operating distances (s ) . 96
n
A.7.3 (CC) Installation (mounting) . 97
A.7.4 (CC) Frequency of operating cycles (f) . 97
A.8 MODEL CD – CAPACITIVE RECTANGULAR PROXIMITY SWITCHES WITH
RECTANGULAR CROSS-SECTION . 98
A.8.1 (CD) Dimensions . 98
A.8.2 (CD) Rated operating distance (s ) . 98
n
A.8.3 (CD) Installation (mounting) . 98
A.8.4 (CD) Frequency of operating cycles (f) . 99
A.9 MODEL CX – CAPACITIVE PROXIMITY SWITCHES WITH OTHER FORMS,
DIMENSIONS AND SMALL SIZES . 99
A.10 MODEL UA – THREADED BARREL ULTRASONIC CYLINDRICAL
PROXIMITY SWITCHES . 99
A.10.1 (UA) Dimensions . 99
A.10.2 (UA) Sensing range . 100
A.10.3 (UA) Installation (mounting) . 100
A.10.4 (UA) Frequency of operating cycles (f) . 100
A.11 MODEL UD – ULTRASONIC RECTANGULAR PROXIMITY SWITCHES
WITH RECTANGULAR CROSS-SECTION . 101
A.11.1 (UD) Dimensions . 101
A.11.2 (UD) Sensing range . 101
A.11.3 (UD) Installation (mounting) . 101
A.11.4 (UD) Frequency of operating cycles (f) . 101
Annex B (normative) Class II proximity switches insulated by encapsulation –
Requirements and tests . 102
B.1 General . 102
B.2 Terms and definitions . 102
B.6 Marking . 102
B.8 Constructional and functional requirements . 103
B.9 Tests . 103
Annex C (normative) Additional requirements for proximity switches with integrally
connected cables . 106
C.1 General . 106
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C.2 Terms and definitions . 106
C.8 Constructional and performance requirements . 106
C.9 Tests . 107
Annex D (normative) Integral connectors for plug-in proximity switches . 111
Annex E (normative) Additional requirements for proximity switches suitable for use in
strong magnetic fields . 119
E.1 Preamble . 119
E.3 Terms and definitions . 119
E.4 Classification . 119
E.8 Construction and performance requirements . 120
E.9 Tests . 121
Annex F (informative) Symbols for proximity switches . 124
F.1 General . 124
F.2 Standard symbols for proximity switches . 124
F.3 Additional symbols for photoelectric proximity switches . 126
F.3.1 Sensor principles . 126
F.3.2 Optical actuation means . 126
F.3.3 Functional symbol definitions . 126
Bibliography . 128
Figure 1 – Relationship between operating distances of inductive and capacitive
proximity switches (see 8.2.1.3 and 9.4.1) . 28
Figure 2 – Ultrasonic proximity switch operating distances . 28
Figure 3 – Relationship between operating distances of ultrasonic proximity switches
(see 8.2.1.3 and 9.4.1) . 29
Figure 4 – Sensing range and operating range of photoelectric proximity switches (see
8.2.1.3 and 9.4) . 30
Figure 5 – Relationship between U and U . 31
e B
Figure 6 – Method of measuring the operating distance (see 9.3.2.1 and 9.4.1) . 57
Figure 7 – Test circuit for the verification of time delay before availability (see 8.2.1.7
and 9.3.3.2.1) . 59
Figure 8 – Signal output across load in Figure 7 (see 9.3.3.2.1) . 60
Figure 9 – Test circuit for the verification of minimum operational current OFF-state
current, voltage drop and independent action (see 9.3.3.2.2, 9.3.3.2.3, 9.3.3.2.4 and
9.3.3.2.5) . 61
Figure 10 – Test circuit for the verification of making and breaking capability (see
9.3.3.5) . 64
Figure 11 – Short-circuit testing (see 9.3.4.2) . 65
Figure 12 – Testing of the sensing range (see 9.4.2) . 68
Figure 13 – Methods for measuring the frequency of operating cycle of inductive,
capacitive and non-mechanical magnetic proximity switches (if applicable) . 70
Figure 14 – Methods for measuring the frequency of operating cycles (f), ultrasonic
proximity switch . 71
Figure 15 – Output signal of direct current proximity switch during the measurement of
frequency of operating cycles (f) . 71
Figure 16 – Measurement means for turn-on time t and turn-off time t . 72
on off
Figure 17 – Turn-on time t measurement . 73
on
IEC 60947-5-2:2019 © IEC 2019 – 7 –
Figure 18 – Turn-off time t measurement . 73
off
Figure A.1 – (IA) – Dimensions for threaded barrel – cable type . 76
Figure A.2 – (IB) – Dimensions for smooth barrel – cable type . 77
Figure A.3 – Type A dimensions – Bo
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The EN IEC 60947-5-2:2020 standard is an essential document that governs the use and implementation of proximity switches within the low-voltage switchgear and controlgear domains. This standard specifically addresses inductive and capacitive proximity switches along with their variations, including ultrasonic, photoelectric, and non-mechanical magnetic proximity switches. One of the primary strengths of this standard is its comprehensive update of the scope compared to the previous edition. The inclusion of significant technical changes, particularly regarding construction requirements aligned with IEC Guide 116, signifies a robust approach to contemporary safety and functionality. This includes detailed adaptations concerning material requirements, hot surface handling, and provisions for unattended operations to enhance user safety during normal and foreseeable misuse situations. Additionally, the standard introduces refined specifications for the sensing range and operating distances, bolstering the performance characteristics of proximity switches. The novel definitions for photoelectric proximity switch type D with background suppression reflect an awareness of advancements in sensing technologies, ensuring that the standard remains relevant to modern applications. It's also notable that this edition integrates pertinent EMC requirements and environmental conditions, aligning with expected global standards. The integration of requirements and test procedures for specific switch types ensures thorough performance evaluation, which is vital for maintaining quality and reliability in application. Furthermore, the major update of Annex A, which incorporates new definitions, dimensions, and shapes, facilitates clarity and usability for manufacturers and technicians alike. The updates to annexes concerning connector types, symbols for photoelectric proximity switches, and impulse withstand voltage tests make this standard particularly comprehensive and user-friendly. In terms of relevance, EN IEC 60947-5-2:2020 effectively addresses current challenges in the industry by providing clear requirements that ensure the safe and efficient operation of proximity switches in various applications. The technical revisions make this a forward-thinking standard that supports innovation while also ensuring compliance with essential safety and operational benchmarks.
Die Norm EN IEC 60947-5-2:2020 befasst sich mit der standardisierten Regelung für Niederspannungs-Schaltgeräte und Steuerungen, insbesondere im Hinblick auf Steuerstromkreisgeräte und Schaltelemente sowie Näherungsschalter. Die letzte Überarbeitung dieser Norm stellt eine bedeutende technische Revision dar, die wesentliche Aktualisierungen im Anwendungsbereich und in den Anforderungen umfasst. Die Norm gilt für induktive und kapazitive Näherungsschalter, die sowohl metallische als auch nicht-metallische Objekte erkennen. Darüber hinaus werden ultraschallbasierte und fotoelektrische Näherungsschalter sowie nicht-mechanische magnetische Näherungsschalter behandelt. Diese umfassende Abdeckung der verschiedenen Technologien zeigt die Relevanz der Norm für eine Vielzahl von Anwendungen und Industrien. Ein herausragendes Merkmal dieser vierten Ausgabe ist die Anpassung der Konstruktionsanforderungen gemäß dem IEC Guide 116, was den Materialanforderungen und der Behandlung von künstlicher optischer Strahlung Rechnung trägt. Diese detaillierte Berücksichtigung technischer Details gewährleistet, dass die Norm den aktuellen technischen Standards und den sicherheitsrelevanten Aspekten entspricht. Die Überarbeitung umfasst auch klare Spezifikationen für den Erfassungsbereich und die Betriebsdistanz, die in der vorherigen Ausgabe nicht ausreichend präzisiert waren. Dies verbessert die Genauigkeit und Zuverlässigkeit der messenenden Geräte erheblich. Besonders hervorzuheben sind die neuen Definitionen für fotoelektrische Näherungsschalter des Typs D mit Hintergrundunterdrückung, die in modernen Anwendungen von entscheidender Bedeutung sind. Die Norm aktualisiert auch die elektromagnetischen Verträglichkeitsanforderungen, was die Einhaltung internationaler Standards erleichtert und damit die Akzeptanz der Produkte auf globalen Märkten stärkt. Mit der Integration der Umweltinformationen und -bedingungen aus den relevanten Anhängen wird zusätzlich sichergestellt, dass die Umweltauswirkungen von Technologien berücksichtigt werden. Die Änderungen an den Testverfahren, beispielsweise bei der Prüfung der Impulsfestigkeit, sowie die Aktualisierungen in den definierten Anhängen präsentieren den fortschrittlichen Charakter der Norm. Interessant ist auch die hinzufügte Erfassung neuer Steckverbindertypen, was die Anwendung der Norm in modernen Systemen unterstützt. Insgesamt stellt die EN IEC 60947-5-2:2020 einen essenziellen Meilenstein in der Standardisierung von Näherungsschaltern dar, indem sie aktuelle Technologien berücksichtigt und einen umfassenden Rahmen für Sicherheits- und Leistungsanforderungen bereitstellt. Ihre fortdauernde Relevanz im Bereich der Niederspannungsschaltgeräte und Steuerungen wird durch die detaillierte und umfassende Überarbeitung unterstrichen, was sie für Fachleute und Hersteller von entscheidender Bedeutung macht.
SIST EN IEC 60947-5-2:2020 문서는 저전압 스위치기어 및 제어 장치의 제어 회로 장치와 스위칭 요소에 대한 중요한 기준을 제시합니다. 특히, 유도형 및 용량형 근접 스위치, 음향 반사 물체를 감지하는 초음파 근접 스위치, 물체 존재를 감지하는 광전 근접 스위치, 자석 장을 감지하는 비기계적 자기 근접 스위치에 대한 적용 범위를 포괄적으로 다루고 있습니다. 이 표준의 강점 중 하나는 최근 기술 변화에 따른 중요한 기술적 수정이 포함되어 있다는 점입니다. 예를 들어, IEC 가이드 116에 따른 구조적 요구 사항의 업데이트와 함께, 감지 범위 및 작동 거리에 대한 사양이 수정되었습니다. 이러한 업데이트는 근접 스위치의 다양한 적용 가능성을 고려하여 실질적인 개선을 제공합니다. 또한, 이 문서는 환경 정보 요구 사항 및 환경 조건을 통합하여 최신의 환경 기준을 반영하고 있으며, EMC 요구 사항에 대한 중요 변화를 포함하고 있습니다. 특히, 광전 근접 스위치 타입 D와 관련된 새로운 정의와 요구 사항이 추가되어, 현재 산업 환경에서 요구되는 다양한 기술적 요구 사항을 충족하고 있습니다. 제4판은 2007년에 발표된 제3판 및 개정판 1을 대체하며, 이전 판과 비교할 때 명확한 개선 사항을 제시하고 있습니다. 이는 근접 스위치 기술의 진화 및 시장의 요구를 반영하는 것으로, 설계자 및 엔지니어들에게 실질적으로 유용한 지침을 제공합니다. 따라서 SIST EN IEC 60947-5-2:2020 문서는 근접 스위치의 설계 및 사용에 있어 필수적인 표준으로 자리잡고 있으며, 현대 기술과 요구 사항을 충족하는 데 매우 적합한 문서입니다.
Le document SIST EN IEC 60947-5-2:2020 offre une révision complète et actualisée des dispositifs de circuits de commande et des éléments de commutation, en particulier les commutateurs de proximité, qu'ils soient inductifs, capacitifs, ultrasoniques, photoélectriques ou magnétiques non mécaniques. La norme fournit un cadre essentiel pour assurer la sécurité et la performance des équipements dans diverses applications industrielles. L'une des forces majeures de cette norme réside dans son ample portée, qui couvre une variété étendue de technologies de détection. Cela permet aux utilisateurs de choisir des solutions appropriées pour détecter aussi bien des objets métalliques que non métalliques, avec des technologies adaptées à des environnements divers. L'intégration des nouveaux types de commutateurs photoélectriques avec suppression d'arrière-plan témoigne de l'engagement de la norme envers l'innovation et l'évolution technologique. Les modifications apportées aux exigences de construction, conformément à la IEC Guide 116, rendent cette norme particulièrement pertinente dans le contexte actuel, où les conditions environnementales et sécuritaires sont de plus en plus strictes. Les mises à jour des exigences en matière d'EMC et les précisions sur les distances de détection renforcent la fiabilité et l'efficacité des dispositifs, ce qui est crucial pour garantir un fonctionnement optimal dans des conditions variées. De plus, l'intégration d'informations environnementales et de conditions d'exploitation réflecte une prise de conscience croissante des enjeux écologiques, s'emboîtant ainsi avec les tendances modernes de durabilité et de responsabilité environnementale. Les mises à jour récentes et les ajouts dans les annexes, y compris les nouvelles dimensions et formes, montrent une adaptation continue à l'évolution du marché et des besoins des utilisateurs. En somme, la norme SIST EN IEC 60947-5-2:2020 représente une avancée significative dans la standardisation des dispositifs de contrôle de circuits, garantissant sécurité, performance et conformité aux exigences modernes. Son actualisation technique approfondie assure sa pertinence et son efficacité dans le domaine en constante évolution de la technologie des commutateurs de proximité.
EN IEC 60947-5-2:2020は、低電圧配電盤および制御装置に関する技術規格の一つであり、制御回路装置および切替素子、特に接近スイッチに焦点を当てています。この規格は、金属および非金属物体の存在を検出する誘導型および容量型接近スイッチ、音波反射物体を感知する超音波接近スイッチ、物体を感知する光電接近スイッチ、さらには磁場のある物体を感知する非機械的磁気接近スイッチに適用されます。 本規格の強みは、前版からの技術的改訂を反映し、実際の現場でのニーズに合致した内容にアップデートされている点です。特に、IECガイド116に基づく構造要求の適応と更新が行われており、素材要件や人工光放射、指示要求、熱表面、無人運転、予見可能な誤使用など、多面的な安全基準が盛り込まれています。これにより、様々な使用条件においても信頼性の高い性能が保証されています。 また、感知範囲や動作距離に関する仕様が修正され、光電接近スイッチの新たな定義や背景抑制付きのタイプDのテスト手順の統合も行われています。これにより、設計者やエンジニアはさらに精密で効率的なセンサーを選定できるようになりました。 EMC要件の更新や、環境情報および条件に関する要求をIEC 60947-1の附属書に参照させる形で統合している点も重要です。これにより、環境への配慮が求められる現代の産業界において、適切な製品選定が可能となります。 このように、EN IEC 60947-5-2:2020はその適用範囲、技術的な強化、現代的なニーズに応じた柔軟性において、業界の標準としての重要性を持ち続けています。安全性と性能の両立を目指す製品開発において、欠かせない基準となるでしょう。
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