EN IEC 62246-4:2023
(Main)Reed switches - Part 4: Application in conjunction with magnetic actuator used for magnetic sensing devices
Reed switches - Part 4: Application in conjunction with magnetic actuator used for magnetic sensing devices
IEC 62246-4:2023 gives additional requirements for the evaluation of functional characteristics on reed switching components operated by magnetic actuator and gives guidance for their implementation in selected applications. This document specifies test and measurement procedures for the application of reed switch (contact) based magnetic sensors. In case the application of a reed contact magnetic sensor determines additional requirements exceeding those specified in this document, the sensor is evaluated with this application in accordance with the relevant IEC or ISO standard(s) (e.g. IEC 62061 or ISO 13849 series, IEC 60335-1 and relevant parts of the IEC 60335-2 series, IEC 60730-1, IEC 61373, ISO 16750-3). This document does not apply to: – sensing or monitoring of the position of elements of interlocking devices for movable guards (see ISO 14119); – sensing or monitoring of the position of elements of pressure sensitive protective equipment (PSPE, see ISO 13856 series); – electrical equipment for measurement, control, and laboratory use (see IEC 61010-1); – aircraft – proximity switches (see ISO 6859-1). Information contained in this document is relevant to the application of a magnetic sensor on new installations as well as modifications to existing installations.
Reedschalter - Teil 4: Anwendung in Verbindung mit einem magnetischen Aktuator, für magnetische Sensorik
Contacts à lames souples - Partie 4: Application en combinaison avec un actionneur magnétique utilisé pour les dispositifs de détection magnétiques
L'IEC 62246-4:2023 fournit des exigences supplémentaires pour l'évaluation des caractéristiques fonctionnelles des composants des contacts à lames souples activés par un actionneur magnétique, ainsi que des recommandations pour leur mise en œuvre dans certaines applications. Le présent document spécifie des procédures d'essai et de mesure pour l'application de capteurs magnétiques à contacts à lames souples. Si l'utilisation d'un capteur magnétique à lames souples établit des exigences supplémentaires qui dépassent celles spécifiées dans le présent document, ce capteur est évalué dans le cadre de son application selon la ou les normes IEC ou ISO appropriées (par exemple, l'IEC 62061 ou la série ISO 13849, l'IEC 60335-1 et les parties pertinentes de la série IEC 60335-2, l'IEC 60730-1, l'IEC 61373, l'ISO 16750-3). Le présent document ne s'applique pas: – à la détection ou surveillance de la position des éléments des dispositifs de verrouillage des protecteurs mobiles (voir l'ISO 14119); – à la détection ou surveillance de la position des éléments des équipements de protection sensibles à la pression (PSPE, voir la série ISO 13856); – au matériel électrique de mesure, de commande et de laboratoire (voir l'IEC 61010-1); – aux détecteurs de proximité en aéronautique (voir l'ISO 6859-1). Les informations contenues dans le présent document concernent l'application d'un capteur magnétique dans de nouvelles installations ainsi que les modifications apportées à des installations existantes.
Stikala reed - 4. del: Uporaba v povezavi z magnetnim prožilnikom za magnetno občutljive naprave
Standard IEC 62246-4:2023 podaja dodatne zahteve za ovrednotenje funkcionalnih lastnosti komponent stikal reed, ki jih upravlja magnetni aktuator, in tudi smernice za njihovo izvedbo v izbranih načinih uporabe.
Ta dokument določa preskusne in merilne postopke za uporabo stikal (stikov) reed na podlagi magnetnih senzorjev.
Če uporaba magnetnega senzorja stika reed določa dodatne zahteve, ki presegajo zahteve iz tega dokumenta, je treba senzor oceniti v skladu s to uporabo glede na skladnost z ustreznimi standardi IEC ali ISO (npr. skupina standardov IEC 62061 ali ISO 13849, standard IEC 60335-1 in ustrezni deli skupine standardov IEC 60335-2, IEC 60730-1, IEC 61373, ISO 16750-3).
Ta dokument se ne uporablja za:
– zaznavanje ali spremljanje položaja elementov zapornih naprav za premična varovala (glej standard ISO 14119);
– zaznavanje ali spremljanje položaja tlačno občutljive zaščitne opreme (PSPE, glej skupino standardov ISO 13856);
– električno opremo za merjenje, nadzor in laboratorijsko uporabo (glej standard IEC 61010-1);
– letala – približevalna stikala (glej standard ISO 6859-1).
Informacije v tem dokumentu so pomembne za uporabo magnetnega senzorja na novih inštalacijah kot tudi za spreminjanje obstoječih inštalacij.
General Information
Overview
EN IEC 62246-4:2023 (IEC 62246-4:2023) specifies additional requirements, tests and measurement procedures for reed switches (reed contacts) when used in combination with a magnetic actuator for magnetic sensing devices (MSDs). The standard focuses on evaluating the functional characteristics of reed-switch‑based magnetic sensors and gives guidance for implementing those sensors in selected applications and installations - both new and modified.
Key topics and technical requirements
- Scope and exclusions: Applies to reed contact magnetic sensors operated by magnetic actuators. Does not apply to certain safety interlocks and specialized equipment (e.g. ISO 14119 interlocking guards, ISO 13856 PSPE, IEC 61010‑1 laboratory equipment, aircraft proximity switches).
- Test and measurement procedures: Defines procedures for functional testing of reed switches in magnetic sensing roles, including visual inspection, dimensional checks, and detailed functional tests.
- Rated values and characteristics: Addresses rated insulation voltage, rated operating voltage/current, contact ratings, number of operations, rated operating distance (Sn), response speed, frequency of operating cycles and contact reliability.
- Influence quantities and environmental severities: Covers environmental and mechanical influences affecting reed switch performance (climatic categories, vibration, shock, salt mist, water, etc.).
- Test regimes: Differentiates type tests, routine tests, and special tests along with general provisions for testing.
- Documentation and marking: Specifies required data, markings and symbols for components and assemblies to ensure traceability and correct application.
Practical applications and who uses this standard
SIST EN IEC 62246-4 is relevant for:
- Reed switch and magnetic sensor manufacturers validating product performance with magnetic actuators.
- Product designers and OEMs integrating reed-switch based magnetic sensors into industrial equipment, appliances and control systems.
- Test laboratories and compliance engineers performing type and routine testing for safety and functional certification.
- Maintenance and installation teams assessing modifications or replacements in existing installations.
Practical use cases include position and proximity sensing where a reed contact is actuated by a magnetic actuator, ensuring reliable switching performance under defined electrical, mechanical and environmental conditions.
Related standards
The document references and is intended to be used alongside relevant IEC/ISO safety and performance standards when additional requirements apply, for example:
- IEC 62246 series (generic reed-switch specs)
- IEC 62061, ISO 13849 series (functional safety)
- IEC 60335‑1 / 60335‑2 (household appliance safety)
- IEC 60730‑1 (automatic electrical controls)
- IEC 61373 (railway shock & vibration)
- ISO 16750‑3 (road vehicles mechanical loads)
Keywords: reed switches, magnetic actuator, magnetic sensing devices, IEC 62246-4:2023, magnetic sensor testing, contact ratings, rated operating distance, functional characteristics, environmental testing.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2023
Stikala reed - 4. del: Uporaba v povezavi z magnetnim prožilnikom za magnetno
občutljive naprave
Reed switches - Part 4: Application in conjunction with Magnetic Actuator used for
Magnetic Sensing Devices
Reedschalter – Teil 4: Anwendung in Kombination mit magnetischem Stellglied für
magnetsensitive Schutzausrüstung (MSPE)
Contacts à lames souples - Partie 4: Application en combinaison avec un actionneur
magnétique utilisé pour les dispositifs de détection magnétiques
Ta slovenski standard je istoveten z: EN IEC 62246-4:2023
ICS:
29.120.70 Releji Relays
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 62246-4
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2023
ICS 29.120.70
English Version
Reed switches - Part 4: Application in conjunction with magnetic
actuator used for magnetic sensing devices
(IEC 62246-4:2023)
Contacts à lames souples - Partie 4: Application en Reedschalter - Teil 4: Anwendung in Verbindung mit einem
combinaison avec un actionneur magnétique utilisé pour les magnetischen Aktuator, für magnetische Sensorik
dispositifs de détection magnétiques (IEC 62246-4:2023)
(IEC 62246-4:2023)
This European Standard was approved by CENELEC on 2023-03-22. 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,
Türkiye 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62246-4:2023 E
European foreword
The text of document 94/786/FDIS, future edition 1 of IEC 62246-4, prepared by IEC/TC 94 "All-or-
nothing electrical relays" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 62246-4:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-12-22
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-03-22
document have to be withdrawn
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62246-4:2023 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 standard indicated:
IEC 60068-2-13:2021 NOTE Approved as EN IEC 60068-2-13:2021 (not modified)
IEC 60077-1:2017 NOTE Approved as EN 60077-1:2017 (not modified)
IEC 60077-2:2017 NOTE Approved as EN 60077-2:2017 (not modified)
IEC 60204-1:2016 NOTE Approved as EN 60204-1:2018 (modified)
1 2
IEC 60335-1:2020 NOTE Approved as EN IEC 60335-1:— (not modified) + A11:—
IEC 60335-2 (series) NOTE Approved as EN 60335-2 (series)
IEC 60404-5:2015 NOTE Approved as EN 60404-5:2015 (not modified)
IEC 60404-14:2002 NOTE Approved as EN 60404-14:2002 (not modified)
IEC 60423:2007 NOTE Approved as EN 60423:2007 (not modified)
IEC 60601-1:2005 NOTE Approved as EN 60601-1:2006 (not modified) + A11:2011
IEC 60601-1:2005/A1:2012 NOTE Approved as EN 60601-1:2006/A1:2013 (not modified)
IEC 60601-1:2005/A2:2020 NOTE Approved as EN 60601-1:2006/A2:2021 (not modified)
To be published. Stage at the time of publication: prEN IEC 60335-1:2022.
To be published. Stage at the time of publication: prEN IEC 60335-1:2022/prAA:2022.
IEC 60695-10-2:2014 NOTE Approved as EN 60695-10-2:2014 (not modified)
IEC 60730-1 NOTE Approved as EN 60730-1
IEC 60945:2002 NOTE Approved as EN 60945:2002 (not modified)
IEC 60947-5-2 NOTE Approved as EN IEC 60947-5-2
IEC 60947-5-3 NOTE Approved as EN 60947-5-3
IEC 61010-1:2010 NOTE Approved as EN 61010-1:2010 (not modified)
IEC 61010-1:2010/A1:2016 NOTE Approved as EN 61010-1:2010/A1:2019
IEC 61010-2 (series) NOTE Approved as EN IEC 61010-2 (series)
IEC 61108-1:2003 NOTE Approved as EN 61108-1:2003 (not modified)
IEC 61140:2016 NOTE Approved as EN 61140:2016 (not modified)
IEC 61508 (series) NOTE Approved as EN 61508 (series)
IEC 61511-3:2016 NOTE Approved as EN 61511-3:2017 (not modified)
IEC 61557 (series) NOTE Approved as EN 61557 (series)
IEC 62046:2018 NOTE Approved as EN IEC 62046:2018 (not modified)
IEC 62052-11:2020 NOTE Approved as EN IEC 62052-11:2021 (not modified) + A11:2022
IEC 62052-31:2015 NOTE Approved as EN 62052-31:2016 (not modified)
IEC 62053-22:2020 NOTE Approved as EN IEC 62053-22:2021 (not modified) + A11:2021
IEC 62059-32-1:2011 NOTE Approved as EN 62059-32-1:2012 (not modified)
IEC 62061 NOTE Approved as EN IEC 62061
IEC 62196-1:2014 NOTE Approved as EN 62196-1:2014 (modified)
IEC 62196-3:2014 NOTE Approved as EN 62196-3:2014 (not modified)
IEC 62246-1-1:2018 NOTE Approved as EN IEC 62246-1-1:2018 (not modified)
IEC 62267:2009 NOTE Approved as EN 62267:2009 (not modified)
IEC 62271-1:2017 NOTE Approved as EN 62271-1:2017 (not modified)
IEC 62388:2013 NOTE Approved as EN 62388:2013 (not modified)
CISPR 11:2015 NOTE Approved as EN 55011:2016 + A11:2020
CISPR 11:2015/A1:2016 NOTE Approved as EN 55011:2016/A1:2017 (not modified)
CISPR 14-1:2020 NOTE Approved as EN IEC 55014-1:2021 (not modified)
CISPR 32:2015 NOTE Approved as EN 55032:2015 (not modified) + A11:2020
ISO 228-1:2000 NOTE Approved as EN ISO 228-1:2003 (not modified)
ISO 4413:2010 NOTE Approved as EN ISO 4413:2010 (not modified)
ISO 4414:2010 NOTE Approved as EN ISO 4414:2010 (not modified)
ISO 12100:2010 NOTE Approved as EN ISO 12100:2010 (not modified)
ISO 13849-1:2015 NOTE Approved as EN ISO 13849-1:2015 (not modified)
ISO 13849-2:2012 NOTE Approved as EN ISO 13849-2:2012 (not modified)
ISO 13855:2010 NOTE Approved as EN ISO 13855:2010 (not modified)
ISO 13856-1:2013 NOTE Approved as EN ISO 13856-1:2013 (not modified)
ISO 13856-2:2013 NOTE Approved as EN ISO 13856-2:2013 (not modified)
ISO 14119:2013 NOTE Approved as EN ISO 14119:2013 (not modified)
ISO 14971 NOTE Approved as EN ISO 14971
ISO 25745-2:2015 NOTE Approved as EN ISO 25745-2:2015 (not modified)
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-1 2007 Environmental testing - Part 2-1: Tests - EN 60068-2-1 2007
Test A: Cold
IEC 60068-2-2 2007 Environmental testing - Part 2-2: Tests - EN 60068-2-2 2007
Test B: Dry heat
IEC 60068-2-6 2007 Environmental testing - Part 2-6: Tests - EN 60068-2-6 2008
Test Fc: Vibration (sinusoidal)
IEC 60068-2-10 2005 Environmental testing - Part 2-10: Tests - EN 60068-2-10 2005
Test J and guidance: Mould growth
+ A1 2018 + A1 2018
IEC 60068-2-11 2021 Environmental testing - Part 2-11: Tests - EN IEC 60068-2-11 2021
Test Ka: Salt mist
IEC 60068-2-17 1994 Basic environmental testing procedures - EN 60068-2-17 1994
Part 2-17: Tests - Test Q: Sealing
IEC 60068-2-18 2017 Environmental testing - Part 2-18: Tests - EN 60068-2-18 2017
Test R and guidance: Water
IEC 60068-2-21 2021 Environmental testing - Part 2-21: Tests - EN IEC 60068-2-21 2021
Test U: Robustness of terminations and
integral mounting devices
IEC 60068-2-27 2008 Environmental testing - Part 2-27: Tests - EN 60068-2-27 2009
Test Ea and guidance: Shock
IEC 60068-2-31 2008 Environmental testing - Part 2-31: Tests - EN 60068-2-31 2008
Test Ec: Rough handling shocks, primarily
for equipment-type specimens
IEC 60068-2-78 2012 Environmental testing - Part 2-78: Tests - EN 60068-2-78 2013
Test Cab: Damp heat, steady state
IEC 60079 series Explosive atmospheres EN IEC 60079 series
IEC 60079-0 2017 Explosive atmospheres - Part 0: EN IEC 60079-0 2018
Equipment - General requirements
Publication Year Title EN/HD Year
IEC 60079-1 2014 Explosive atmospheres - Part 1: EN 60079-1 2014
Equipment protection by flameproof
enclosures "d"
IEC 60079-10-1 2020 Explosive atmospheres - Part 10-1: EN IEC 60079-10-1 2021
Classification of areas - Explosive gas
atmospheres
IEC 60079-11 2011 Explosive atmospheres - Part 11: EN 60079-11 2012
Equipment protection by intrinsic safety "i"
IEC 60079-15 2017 Explosive atmospheres - Part 15: EN IEC 60079-15 2019
Equipment protection by type of protection
"n"
IEC 60079-18 2014 Explosive atmospheres - Part 18: EN 60079-18 2015
Equipment protection by encapsulation "m"
+ A1 2017 + A1 2017
IEC 60417 - Graphical symbols for use on equipment. - -
Index, survey and compilation of the single
sheets.
IEC 60529 1989 Degrees of protection provided by EN 60529 1991
enclosures (IP Code)
- - + corrigendum May 1993
+ A1 1999 + A1 2000
+ A2 2013 + A2 2013
IEC 60695-2-10 2021 Fire hazard testing - Part 2-10: EN IEC 60695-2-10 2021
Glowing/hot-wire based test methods -
Glow-wire apparatus and common test
procedure
IEC 60695-2-11 2021 Fire hazard testing - Part 2-11: EN IEC 60695-2-11 2021
Glowing/hot-wire based test methods -
Glow-wire flammability test method for end
products (GWEPT)
IEC 60695-2-12 2021 Fire hazard testing - Part 2-12: EN IEC 60695-2-12 2021
Glowing/hot-wire based test methods -
Glow-wire flammability index (GWFI) test
method for materials
IEC 60695-2-13 2021 Fire hazard testing - Part 2-13: EN IEC 60695-2-13 2021
Glowing/hot-wire based test methods -
Glow-wire ignition temperature (GWIT) test
method for materials
IEC 60721-3-3 2019 Classification of environmental conditions - EN IEC 60721-3-3 2019
Part 3-3: Classification of groups of
environmental parameters and their
severities - Stationary use at
weatherprotected locations
IEC 60947-5-1 2016 Low-voltage switchgear and controlgear - EN 60947-5-1 2017
Part 5-1: Control circuit devices and
switching elements - Electromechanical
control circuit devices
IEC 61373 2010 Railway applications - Rolling stock EN 61373 2010
equipment - Shock and vibration tests
Publication Year Title EN/HD Year
IEC 61810-1 2015 Electromechanical elementary relays - EN 61810-1 2015
Part 1: General and safety requirements
+ A1 2019 + A1 2020
IEC 61810-7 2006 Electromechanical elementary relays - EN 61810-7 2006
Part 7: Test and measurement procedures
IEC 62246 series Reed switches EN 62246 series
IEC 62246-1 2015 Reed switches - Part 1: Generic EN 62246-1 2015
specification
ISO/IEC 80079-20-1 - Explosive atmospheres - Part 20-1: EN ISO/IEC 80079- 2019
Material characteristics for gas and vapour 20-1
classification - Test methods and data
ISO 16750-3 2012 Road vehicles - Environmental conditions - -
and testing for electrical and electronic
equipment - Part 3: Mechanical loads
IEC 62246-4 ®
Edition 1.0 2023-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Reed switches –
Part 4: Application in conjunction with magnetic actuator used for magnetic
sensing devices
Contacts à lames souples –
Partie 4: Application en combinaison avec un actionneur magnétique utilisé
pour les dispositifs de détection magnétiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70 ISBN 978-2-8322-6469-0
– 2 – IEC 62246-4:2023 © IEC 2023
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 12
3.1 Types of magnetic-sensing device (MSD) . 12
3.2 Elements of an MSD . 14
3.3 Connections . 14
3.4 Operation of an MSD . 14
4 Influence quantities . 15
5 Rated values . 16
5.1 General . 16
5.2 Rated insulation voltage (U ) . 16
i
5.3 Rated operating voltage (U ) . 16
e
5.4 Rated operating current (I ) . 17
e
5.5 Contact ratings . 17
5.6 Number of operations. 17
5.7 Rated operating distance (S ) . 17
n
5.8 Climatic category . 17
5.9 Environmental severities . 17
5.10 Response speed . 18
5.11 Frequency of operating cycles . 18
5.12 Contact reliability . 18
6 Types . 18
7 General provisions for testing . 20
7.1 General . 20
7.2 Type tests . 20
7.3 Routine tests. 21
7.4 Special tests . 22
8 Documentation and marking . 22
8.1 Data . 22
8.2 Marking . 24
8.3 Symbols . 24
9 Test and measurement procedures . 25
9.1 General . 25
9.2 Visual inspection and check of dimensions . 25
9.2.1 Visual inspection . 25
9.2.2 Outline dimensions . 25
9.2.3 Mass . 25
9.3 Functional tests . 26
9.3.1 General . 26
9.3.2 Operating distance . 26
9.3.3 Deviation of operating distance . 26
9.3.4 Differential travel (H) . 26
9.3.5 Repeatability (R) . 27
IEC 62246-4:2023 © IEC 2023 – 3 –
9.3.6 Magnetic interference . 27
9.3.7 Response speed (if applicable) . 27
9.3.8 Frequency of operating cycles (f) (if applicable) . 29
9.3.9 Functional test by temperature change . 31
9.3.10 Contact circuit resistance . 32
9.3.11 Temperature rise . 32
9.4 Insulation resistance . 32
9.4.1 Procedures . 32
9.4.2 Requirements . 33
9.5 Dielectric test . 33
9.5.1 Procedures . 33
9.5.2 Requirements . 34
9.6 Endurance tests . 34
9.6.1 General . 34
9.6.2 Procedures for electrical endurance test . 34
9.6.3 Requirements . 35
9.6.4 Procedures for mechanical endurance test (if applicable) . 35
9.6.5 Requirements . 35
9.7 External connections . 35
9.7.1 General . 35
9.7.2 Robustness of terminal with lead wire (if applicable) . 36
9.7.3 Robustness of terminal (if applicable) . 36
9.7.4 Soldering terminals (if applicable) . 37
9.7.5 Connector (if applicable) . 37
9.8 Mechanical stresses tests . 37
9.8.1 General . 37
9.8.2 Mounting . 37
9.8.3 Vibration . 37
9.8.4 Shock . 38
9.8.5 Rough handling shocks (if applicable) . 39
9.9 Environmental tests . 39
9.9.1 General . 39
9.9.2 Cold. 40
9.9.3 Dry heat . 40
9.9.4 Damp heat, steady state . 40
9.9.5 Mould growth . 41
9.9.6 Fluid contamination (if applicable) . 41
9.9.7 Salt mist (if applicable) . 42
9.10 Enclosure protection tests . 42
9.10.1 General . 42
9.10.2 Degree of enclosure . 42
9.10.3 Pressurized water (if applicable) . 42
9.11 Sealing (if applicable) . 43
9.11.1 General . 43
9.11.2 Procedures . 43
9.11.3 Requirements . 43
9.12 Heat and fire resistance . 43
9.12.1 General . 43
9.12.2 Glow-wire . 43
– 4 – IEC 62246-4:2023 © IEC 2023
9.12.3 Ball pressure . 44
9.13 Making and breaking capacity (if applicable) . 45
9.13.1 General . 45
9.13.2 Procedures . 45
9.13.3 Requirements . 45
9.14 Conditional short-circuit current test (if applicable) . 46
9.14.1 General . 46
9.14.2 Procedures . 46
9.14.3 Requirements . 46
9.15 Contact reliability test . 46
9.15.1 General . 46
9.15.2 Procedures . 46
9.15.3 Requirements . 46
9.16 Electromagnetic compatibility (EMC) . 46
Annex A (informative) Explanations relating to reed contact magnetic sensor –
Example . 47
Annex B (informative) Explanations relating to the operation of reed contact magnetic
sensor – Example . 48
Annex C (informative) Work principles regarding sensing distances . 49
C.1 General . 49
C.2 Reed contact magnetic sensor with magnetic actuator set (separate type) . 49
C.2.1 Operation . 49
C.2.2 Axial approach . 49
C.2.3 Lateral approach. 50
C.3 Reed contact magnetic sensor with magnetic actuator set (latching type) . 51
C.3.1 Operation . 51
C.3.2 Specified directions . 51
C.4 Reed contact magnetic sensor with magnetic actuator set (fork type) . 52
C.4.1 Operation . 52
C.4.2 Specified directions . 52
C.5 Reed contact magnetic sensor with magnetic actuator set (plunger type) . 53
C.5.1 Operation . 53
C.5.2 Specified directions . 53
C.6 Reed contact magnetic sensor with magnetic actuator set (float type) . 54
C.6.1 Operation . 54
C.6.2 Specific directions . 55
Annex D (informative) Risk assessment . 56
D.1 General . 56
D.2 Risk assessment procedure . 56
D.3 Achieving tolerable risk . 57
D.4 Application of risk assessment procedures (proposal for the user) . 59
Annex E (informative) Test procedures regarding response speed . 61
E.1 General . 61
E.2 Test circuit . 61
E.3 Test sequence . 61
Annex F (informative) Special tests . 63
F.1 General . 63
F.2 Functional tests . 63
F.3 Functional tests and mechanical durability . 63
IEC 62246-4:2023 © IEC 2023 – 5 –
F.4 Vibration and shock tests for special requirements of applications . 63
F.5 Explosion proofness . 63
F.5.1 General . 63
F.5.2 Procedures . 63
F.5.3 Requirements . 64
Bibliography . 65
Figure 1 – Methods for measuring the response speed . 28
Figure 2 – Output signal . 28
Figure 3 – Methods for measuring the operating frequency (f). 30
Figure 4 – Output signal during the measuring of operating frequency (f) . 31
Figure 5 – Ball pressure test apparatus . 45
Figure A.1 – Driven method for reed contact magnetic sensor by permanent magnetic
actuator . 47
Figure B.1 – Explanatory diagram of terms related to operation by magnetic actuator . 48
Figure C.1 – Operating approaches . 49
Figure C.2 – Axial approach relating to sensing distances . 50
Figure C.3 – Lateral approach relating to sensing distances . 51
Figure C.4 – Specified directions relating to sensing distances and contact states . 52
Figure C.5 – Specified directions relating to sensing distances . 53
Figure C.6 – Sensing distances . 54
Figure C.7 – Sensing distances according to liquid level . 55
Figure D.1 – Iterative process of risk assessment and risk reduction . 56
Figure D.2 – Risk reduction . 58
Figure E.1 – Test circuit – Example . 61
Figure E.2 – Measurement data by oscilloscope – Example . 62
Table 1 – Reference values of influence quantities . 16
Table 2 – Rated insulation voltage . 16
Table 3 – Rated operating voltage . 17
Table 4 – Rated operating distance . 17
Table 5 – Rated maximum working pressure . 17
Table 6 – Examples of output functions of MSD . 19
Table 7 – Type testing . 21
Table 8 – Routine tests . 22
Table 9 – Required data . 23
Table 10 – Symbols . 25
Table 11 – Examples of indication of rated values. 25
Table 12 – Deviation of operating distance . 26
Table 13 – Remanence value . 27
Table 14 – Typical rated speeds . 28
Table 15 – Typical operating times of switching loads . 29
Table 16 – Frequency of operating cycles . 31
Table 17 – Function test by temperature change . 31
– 6 – IEC 62246-4:2023 © IEC 2023
Table 18 – Deviation of operating distance . 32
Table 19 – Test current . 32
Table 20 – Rated voltage of insulation resistance test . 33
Table 21 – Dielectric test voltage . 33
Table 22 – Minimum clearances and creepage distances . 34
Table 23 – Number of cycles for endurance test . 35
Table 24 – Criteria for electrical endurance tests . 35
Table 25 – Torque severity . 36
Table 26 – Value of applied force for test U . 37
a1
Table 27 – Vibration test . 38
Table 28 – Shock test . 39
Table D.1 – Examples of the relation between failure mode, consequences and hazard . 59
Table D.2 – Severity of harm . 59
Table D.3 – Probability of harm . 60
Table D.4 – Risk category . 60
IEC 62246-4:2023 © IEC 2023 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
REED SWITCHES –
Part 4: Application in conjunction with magnetic actuator
used for magnetic sensing devices
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 62246-4 has been prepared by IEC technical committee 94: All-or-nothing electrical relays.
It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
94/786/FDIS 94/807/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
– 8 – IEC 62246-4:2023 © IEC 2023
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 62246 series, published under the general title Reed switches can
be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.
IEC 62246-4:2023 © IEC 2023 – 9 –
INTRODUCTION
Reed switches are used as sensing devices in a variety of applications (e.g. safety of machinery,
alarm detectors, factory automation, pneumatics and hydraulics, railways, aut
...
Frequently Asked Questions
EN IEC 62246-4:2023 is a standard published by CLC. Its full title is "Reed switches - Part 4: Application in conjunction with magnetic actuator used for magnetic sensing devices". This standard covers: IEC 62246-4:2023 gives additional requirements for the evaluation of functional characteristics on reed switching components operated by magnetic actuator and gives guidance for their implementation in selected applications. This document specifies test and measurement procedures for the application of reed switch (contact) based magnetic sensors. In case the application of a reed contact magnetic sensor determines additional requirements exceeding those specified in this document, the sensor is evaluated with this application in accordance with the relevant IEC or ISO standard(s) (e.g. IEC 62061 or ISO 13849 series, IEC 60335-1 and relevant parts of the IEC 60335-2 series, IEC 60730-1, IEC 61373, ISO 16750-3). This document does not apply to: – sensing or monitoring of the position of elements of interlocking devices for movable guards (see ISO 14119); – sensing or monitoring of the position of elements of pressure sensitive protective equipment (PSPE, see ISO 13856 series); – electrical equipment for measurement, control, and laboratory use (see IEC 61010-1); – aircraft – proximity switches (see ISO 6859-1). Information contained in this document is relevant to the application of a magnetic sensor on new installations as well as modifications to existing installations.
IEC 62246-4:2023 gives additional requirements for the evaluation of functional characteristics on reed switching components operated by magnetic actuator and gives guidance for their implementation in selected applications. This document specifies test and measurement procedures for the application of reed switch (contact) based magnetic sensors. In case the application of a reed contact magnetic sensor determines additional requirements exceeding those specified in this document, the sensor is evaluated with this application in accordance with the relevant IEC or ISO standard(s) (e.g. IEC 62061 or ISO 13849 series, IEC 60335-1 and relevant parts of the IEC 60335-2 series, IEC 60730-1, IEC 61373, ISO 16750-3). This document does not apply to: – sensing or monitoring of the position of elements of interlocking devices for movable guards (see ISO 14119); – sensing or monitoring of the position of elements of pressure sensitive protective equipment (PSPE, see ISO 13856 series); – electrical equipment for measurement, control, and laboratory use (see IEC 61010-1); – aircraft – proximity switches (see ISO 6859-1). Information contained in this document is relevant to the application of a magnetic sensor on new installations as well as modifications to existing installations.
EN IEC 62246-4:2023 is classified under the following ICS (International Classification for Standards) categories: 29.120.70 - Relays. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase EN IEC 62246-4:2023 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.
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