SIST EN 62246-2:2008

SLOVENSKI STANDARD
SIST EN 62246-2:2008
01-maj-2008
Enote z reed kontakti - 2. del: Visoko zmogljiva reed stikala (IEC 62246-2:2007)
Reed contact units - Part 2: Heavy-duty reed switches
Reedkontakt-Einheiten - Teil 2: Hochleistungs-Reedschalter
Contacts à lames souples en enceinte scellée - Partie 2: Relais à lames souples à usage
intensif
Ta slovenski standard je istoveten z: EN 62246-2:2008
ICS:
29.120.70 Releji Relays
SIST EN 62246-2:2008 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN 62246-2
NORME EUROPÉENNE
January 2008
EUROPÄISCHE NORM

ICS 29.120.70


English version


Reed contact units -
Part 2: Heavy-duty reed switches
(IEC 62246-2:2007)


Contacts à lames souples  Reedkontakt-Einheiten -
en enceinte scellée - Teil 2: Hochleistungs-Reedschalter
Partie 2: Relais à lames souples (IEC 62246-2:2007)
à usage intensif
(CEI 62246-2:2007)




This European Standard was approved by CENELEC on 2007-12-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the 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,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62246-2:2008 E

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EN 62246-2:2008 – 2 –
Foreword
The text of document 94/243/CDV, future edition 1 of IEC 62246-2, prepared by IEC TC 94, All-or-nothing
electrical relays, was submitted to the IEC-CENELEC Parallel Unique Acceptance Procedure and was
approved by CENELEC as EN 62246-2 on 2007-12-01.
This European Standard is to be read in conjunction with EN 62246-1:2002.
The 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) 2008-09-01
– latest date by which the national standards conflicting
(dow) 2010-12-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62246-2:2007 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 60317-1 NOTE Harmonized as EN 60317-1:1994
+ A1 + A2 + A1:1997 + A2:1997 (not modified).
IEC 60947-5-1 NOTE Harmonized as EN 60947-5-1:2004 (not modified).
IEC 61810-1 NOTE Harmonized as EN 61810-1:2004 (not modified).
IEC 61810-2 NOTE Harmonized as EN 61810-2:2005 (not modified).
IEC 61811-1 NOTE Harmonized as EN 61811-1:1999 (not modified).
ISO/IEC 17050-1 NOTE Harmonized as EN ISO/IEC 17050-1:2004 (not modified).
ISO 9000 NOTE Harmonized as EN ISO 9000:2005 (not modified).
ISO 9001 NOTE Harmonized as EN ISO 9001:2000 (not modified).
__________

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– 3 – EN 62246-2:2008

Annex ZA
(normative)

Normative references to international publications
with their corresponding 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 international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 62246-1 2002 Reed contacts units - EN 62246-1 2002
Part 1: Generic specification


IECEE 01 2006 IEC System of Conformity Assessment – –
Schemes for Electrotechnical Equipment and
Components (IECEE) - Basic rules


IECEE 03 2006 Rules of Procedure of the Scheme of the – –
IECEE for Mutual Recognition of Conformity
Assessment Certificates for Electrotechnical
Equipment and Components (CB-FCS)


IECQ 01 2003 IEC Quality Assessment System for – –
Electronic Components (IECQ) - Basic Rules


IECQ QC 001002-1 1998 IEC Quality Assessment System for – –
Electronic Components (IECQ) - Rules of
Procedure -
Part 1: Administration

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IEC 62246-2
Edition 1.0 2007-10
INTERNATIONAL
STANDARD

Reed contact units –
Part 2: Heavy-duty reed switches


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
V
ICS 29.120.70 ISBN 2-8318-9330-5

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– 2 – 62246-2 © IEC:2007(E)
CONTENTS
FOREWORD.5

1 General .7
1.1 Scope.7
1.2 Normative references .7
1.3 Terms, definitions, abbreviations and symbols.7
1.4 Preferred values.8
1.4.1 Frequency of operation.8
1.4.2 Duty cycle .8
1.4.3 Open-circuit voltage across contacts .8
1.4.4 Current ratings .8
1.4.5 Load ratings .8
1.4.6 Number of operations .8
1.4.7 Climatic category.8
1.4.8 Preferred environmental severities .8
1.4.9 Rated operational voltage; U .8
e
1.4.10 Rated switching current; I .9
e
1.4.11 Rated insulation voltage .9
1.4.12 Rated impulse voltage .9
1.4.13 Utilization categories .9
1.4.14 Contact reliability.9
1.4.15 Limiting continuous current; I .9
th
1.5 Marking .10
1.6 Order of precedence .10
1.7 Precautions regarding mercury (for mercury wetted contact units) .10
2 Quality assessment procedures.10
2.1 General .10
2.2 Self-certification .10
2.3 Two-party certification .10
2.4 Third-party certification.10
3 Test and measurement procedures.11
3.1 General .11
3.2 Alternative procedures .11
3.3 Standard conditions for testing .11
3.4 Visual inspection and check of dimensions.11
3.5 Functional tests.11
3.6 Remanence test .11
3.7 Contact circuit resistance .11
3.8 Dielectric test .11
3.9 Insulation resistance .11
3.10 Operate, release, transfer or bridging, and bounce times.11
3.11 Contact sticking.12
3.12 Robustness of terminals .12
3.13 Soldering (solderability and resistance to soldering heat) .12
3.14 Climatic sequence .12
3.15 Damp heat, steady state.12

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62246-2 © IEC:2007(E) – 3 –
3.16 Rapid change of temperature .12
3.17 Salt mist.12
3.18 Bump .12
3.19 Vibration.12
3.20 Shock.12
3.21 Acceleration test – Functional test only .12
3.22 Sealing.12
3.23 Electrical endurance.12
3.23.1 General .12
3.23.2 Types of electrical endurance test .13
3.23.3 Standard electrical endurance test.13
3.23.4 Application simulation endurance test.14
3.23.5 Requirements .14
3.23.6 Information to be stated in the detail specification .14
3.24 Mechanical endurance.15
3.25 Maximum cycling frequency.15
3.26 Mounting position test (for mercury wetted contact units) .15
3.27 Drain time test (for mercury wetted contact units).15
3.28 Voltage surge test .15
3.29 Rated impulse voltage .15
3.29.1 Procedure.15
3.29.2 Requirements .16
3.29.3 Information to be stated in the detail specification .16
3.30 Rated making and breaking capacities .16
3.30.1 General test arrangements .16
3.30.2 Procedure.16
3.30.3 Requirements .16
3.30.4 Information to be stated in the detail specification .16
3.31 Rated conditional short-circuit current .19
3.31.1 General test arrangements .19
3.31.2 Procedure.19
3.31.3 Requirements .19
3.31.4 Information to be stated in the detail specification .20
3.32 Contact reliability test.20
3.32.1 General test arrangements .20
3.32.2 Procedure.20
3.32.3 Requirements .21
3.32.4 Information to be stated in the detail specification .21
3.33 Temperature rise.22
3.33.1 Procedure.22
3.33.2 Requirements .22
3.33.3 Information to be stated in the detail specification .22
3.34 Making current capacity test.23
3.34.1 General .23
3.34.2 Procedure.23
3.34.3 Requirements .23
3.34.4 Information to be stated in the detail specification .23
3.35 Breaking current capacity test .24
3.35.1 General .24

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– 4 – 62246-2 © IEC:2007(E)
3.35.2 Procedure.24
3.35.3 Requirements .24
3.35.4 Information to be stated in the detail specification .24

Annex A (informative) Electrical endurance test circuit.26
Annex B (informative) Rated conditional short-circuit current test circuit .28
Annex C (informative) Electrical ratings based on utilization categories .29
Annex D (informative) Example of test arrangement for contact reliability test .31
Annex E (informative) Standard test coils for heavy-duty reed switches .32
Annex F (informative) Making current capacity test sequence .33
Annex G (informative) Breaking current capacity test sequence.34

Bibliography.35

Figure A.1 – Generalized endurance test circuit.26
Figure A.2 – Functional block diagram .27
Figure B.1 – Rated conditional short-circuit current test circuit.28
Figure D.1 – Contact reliability test circuit.31
Figure E.1 – Configuration of test coils .32
Figure F.1 – Making current capacity test sequence .33
Figure G.1 – Breaking current capacity test sequence .34

Table 1 – Utilization categories .9
Table 2 – Making and breaking capacity for electrical endurance tests .17
Table 3 – Verification of making and breaking capacity for AC-15 / DC-13 under normal
conditions .18
Table 4 – Verification of making and breaking capacity for AC-15 / DC-13 under
abnormal conditions.19
Table C.1 – Examples of contact rating designation based on utilization categories.29
Table E.1 – List of standard test coils .32

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62246-2 © IEC:2007(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
______________

REED CONTACT UNITS –

Part 2: Heavy-duty reed switches


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,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment
declared to be in conformity with an IEC Publication.
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 expenses
arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
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.
International Standard IEC 62246-2 has been prepared by IEC technical committee 94:
All-or-nothing electrical relays.
This part of IEC 62246 is to be read in conjunction with IEC 62246-1.
The text of this standard is based on the following documents:
CDV Report on voting
94/243/CDV 94/257A/RVC

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 62246 series, published under the general title Reed contact units, can
be found on the IEC website.

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– 6 – 62246-2 © IEC:2007(E)
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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62246-2 © IEC:2007(E) – 7 –
REED CONTACT UNITS –

Part 2: Heavy-duty reed switches



1 General
1.1 Scope
This part of IEC 62246 applies to the switching performance of heavy-duty reed switches for use
in industrial applications based upon Part 1.
This part of IEC 62246 specifies reliability tests, rated making and breaking capacities, rated
impulse voltages, rated conditional short-circuit currents, temperature rise and construction
testing in addition to the requirements of Part 1.
Heavy-duty reed switches are glass sealed contact units and include high pressure sealed types.
This part of IEC 62246 does not apply to mercury-wetted reed contact units.
NOTE 1 Heavy-duty reed switches are mainly used within electromagnetic switching devices, valves, solenoids,
power relays, etc., as the electromagnetic load switching elements. The load conditions should be selected from the
standard inductive loads and the load specifications specified in IEC 61810-1 and IEC 60947-5-1.
NOTE 2 For elementary relays using heavy-duty reed switches as contact elements, this standard should be used
together with IEC 61810-1 and IEC 61811-1 as applicable.
NOTE 3 For electromechanical control circuit devices using heavy-duty reed switches as contact elements, this
standard should be used together with IEC 60947-5-1 as applicable.
1.2 Normative references
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.
IEC 62246-1:2002, Reed contact units – Part 1: Generic specification
IECEE 01:2006, IEC System of Conformity Assessment Schemes for Electrotechnical
Equipment and Components (IECEE) – Basic rules
IECEE 03:2006, Rules of Procedure of the Scheme of the IECEE for Mutual Recognition of
Conformity Assessment Certificates for Electrotechnical Equipment and Components (CB-FCS)
IECQ 01:2003, IEC Quality Assessment System for Electronic Components (IECQ) – Basic
Rules
IECQ QC 001002-1:1998, IEC Quality Assessment System for Electronic Components (IECQ) –
Rules of Procedure – Part 1: Administration
1.3 Terms, definitions, abbreviations and symbols
For the purposes of this document, 1.3 of Part 1 applies with the following amendments.
Replace 1.3.1 as follows:

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– 8 – 62246-2 © IEC:2007(E)
1.3.1
heavy-duty reed switch
assembly containing contact blades, some or all of magnetic material, in which greater switching
capacity is achieved by either blades having additional contact tips or a contact tip and spring
which separate the magnetic path and electric path, hermetically sealed in an envelope and
controlled by means of externally generated magnetic field (e.g. an energizing quantity applied
to a coil, or magnet actuator)
Add:
1.3.56
rated conditional short-circuit current
value of prospective current, stated by the manufacturer, which the switch, protected by a
short-circuit protective device specified by the manufacturer, can withstand satisfactorily for the
operating time of this device under the test conditions specified in the relevant product standard
1.4 Preferred values
1.4.1 Frequency of operation
Subclause 1.4.1 of Part 1 applies.
1.4.2 Duty cycle
Subclause 1.4.2 of Part 1 applies.
1.4.3 Open-circuit voltage across contacts
Subclause 1.4.3 of Part 1 applies.
1.4.4 Current ratings
Subclause 1.4.4 of Part 1 applies.
1.4.5 Load ratings
Subclause 1.4.5 of Part 1 applies with the following additions:
750; 1 000; 1 800; 3 600; 7 200 VA.
1.4.6 Number of operations
Subclause 1.4.6 of Part 1 applies.
1.4.7 Climatic category
Subclause 1.4.7 of Part 1 applies.
1.4.8 Preferred environmental severities
Subclause 1.4.8 of Part 1 applies.
1.4.9 Rated operational voltage; U
e
The following values are preferred.
AC 12, 24, 50, 100, 110, 120, 200, 220, 240, 380, 480, 500, 550, 600, 800, 1 000 V (r.m.s.)
DC 1, 6, 12, 24, 48, 100, 110, 120, 125, 200, 220, 250, 400, 500, 600, 800, 1 200, 1 500 V.

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62246-2 © IEC:2007(E) – 9 –
1.4.10 Rated switching current; I
e
The following values are preferred.
1; 10; 15; 30; 50; 100 mA; 0,3; 0,5; 1; 2; 3; 5 A.
1.4.11 Rated insulation voltage
The following values of rated insulation voltage are preferred.
a) AC 250, 380, 500, 600 V (r.m.s.)
b) DC 250, 440, 500, 600 V.
1.4.12 Rated impulse voltage
The following values of rated impulse voltage and waveform are preferred.
a) 800, 1 500, 2 500, 3 000, 4 000 V
b) 1,2 × 50 μs.
1.4.13 Utilization categories
The utilization categories as given in Table 1 are preferred. Any other types of application shall
be based on agreement between manufacturer and user, but information given in the
manufacturer’s catalogue or tender may constitute such an agreement.
Table 1 – Utilization categories
Kind of current Category Typical application
AC-12 Control of resistive loads and solid state loads with isolation by
opto-couplers
AC-13 Control of solid state loads with transformer isolation
AC
AC-14 Control of small electromagnetic loads ≤72 VA
AC-15 Control of electromagnetic loads ≥72 VA
DC-12 Control of resistive loads and solid state loads with isolation by
opto-couplers
DC DC-13 Control of electromagnets
DC-14 Control of small electromagnetic loads having e
...