IEC PAS 62246-2-1:2008
(Main)Reed contact units - Part 2-1: Heavy-duty reed switches - Quality assessment specification
Reed contact units - Part 2-1: Heavy-duty reed switches - Quality assessment specification
IEC/PAS 62246-2-1:2008(E) defines requirements and tests for heavy-duty reed switches intended to be incorporated into devices that can be used in various industrial applications. Is to be used in conjunction with IEC 62246-2 and selects from IEC 62246-2 and from other sources the appropriate test procedures to be used in detail specifications derived from this PAS.
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IEC/PAS 62246-2-1
Edition 1.0 2008-04
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Reed contact units –
Part 2-1: Heavy-duty reed switches – Quality assessment specification
IEC/PAS 62246-2-1:2008(E)
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IEC/PAS 62246-2-1
Edition 1.0 2008-04
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Reed contact units –
Part 2-1: Heavy-duty reed switches – Quality assessment specification
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
W
ICS 29.120.70 ISBN 2-8318-9669-X
– 2 – PAS 62246-2-1 © IEC:2008(E)
CONTENTS
FOREWORD.3
1 Scope.5
2 Normative references .5
3 Test schedules .5
3.1 General .5
3.2 Qualification approval procedures .6
3.3 Quality conformance inspection.6
3.4 Formation of inspection lots.6
3.5 Intervals between tests.6
3.6 Standard conditions for testing .6
3.7 Mounting of test specimens during the test.6
3.8 General conditions for testing.6
4 Characteristic values of the heavy-duty reed switches .33
4.1 Standard test coil number for tests .33
4.2 Contact data.33
4.2.1 Contact reliability, electrical endurance, rated making and breaking
current capacities and switching frequency.33
4.2.2 Static contact-circuit resistance .36
4.2.3 Mechanical endurance.36
4.3 Environmental data .36
5 Reliability – Failure rate data.36
6 Marking and documentation.37
6.1 Marking of the heavy-duty reed switch.37
6.2 Marking of the packaging .37
Annex A (normative) Mounting in a standard coil .38
Annex B (normative) Variants .39
Annex C (informative) Typical applications.40
Figure A.1 – Switch direction and position in a standard coil.38
Table 1 – Quality conformance inspection.7
Table 2 – Tests for qualification approval.15
Table 3 – Qualification approval.30
Table 4 – Characteristic values for general data .33
Table 5 – Standard test coil number for tests .33
Table 6 – Data for contact reliability, electrical endurance, making current capacity,
breaking current capacity, and rated making and breaking capacities .34
Table 7 – Environmental data .36
Table 8 – Reliability data .36
PAS 62246-2-1 © IEC:2008(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
REED CONTACT UNITS –
Part 2-1: Heavy-duty reed switches –
Quality assessment specification
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
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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.
A PAS is a technical specification not fulfilling the requirements for a standard, but made
available to the public.
IEC/PAS 62246-2-1 has been processed by IEC Technical Committee 94: All-or-nothing
electrical relays.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document
Draft PAS Report on voting
94/264/NP 94/271/RVN
Following the publication of this PAS, which is a pre-standard publication, the technical
committee or subcommittee concerned will transform it into an International Standard. It is
intended to incorporate its contents into the next edition of IEC 62246-2 during the upcoming
maintenance cycle for that standard.
– 4 – PAS 62246-2-1 © IEC:2008(E)
This PAS shall remain valid for an initial maximum period of 3 years starting from the
publication date. The validity may be extended for a single 3-year period, following which it
shall be revised to become another type of normative document, or shall be withdrawn.
PAS 62246-2-1 © IEC:2008(E) – 5 –
REED CONTACT UNITS –
Part 2-1: Heavy-duty reed switches –
Quality assessment specification
1 Scope
This PAS defines requirements and tests for heavy-duty reed switches intended to be
incorporated into devices that can be used in various industrial applications.
This PAS is to be used in conjunction with IEC 62246-2.
This PAS selects from IEC 62246-2 and from other sources the appropriate test procedures to
be used in detail specifications derived from this PAS.
Two different product variants (variant A and variant B) are specified depending on
characteristic values and tests (see Annex B).
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 60068-2-11 (1981): Environmental testing – Part 2: Tests. Test Ka: Salt mist
IEC 60068-2-14 (1984): Environmental testing – Part 2: Tests. Test N: Change of temperature
IEC 60068-2-20 (1979): Environmental testing. Part 2: Tests. Test T: Soldering
Amendment 2 (1987)
IEC 60068-2-21 (2006): Environmental testing – Part 2-21: Tests – Test U: Robustness of
terminations and integral mounting devices
IEC 60068-2-29 (1987): Environmental testing. Part 2: Tests. Test Eb and guidance: Bump
IEC 60068-2-78 (2001): Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state
IEC 60127-2 (2003): Miniature fuses – Part 2: Cartridge fuse-links
IEC 61373 (1999): Railway applications – Rolling stock equipment – Shock and vibration tests
IEC 62246-1 (2002): Reed contact units – Part 1: Generic specification
IEC 62246-2 (2007): Reed contact units – Part 2: Heavy-duty reed switches
3 Test schedules
3.1 General
Test procedures are referenced in the corresponding subclauses of IEC 62246-2.
– 6 – PAS 62246-2-1 © IEC:2008(E)
3.2 Qualification approval procedures
Qualification approval procedures are indicated in Table 2 and Table 3:
– sampling and test schedule are specified in Table 2 and Table 3;
– the tests specified and their order is mandatory;
– tests stated in Table 2 are mandatory for the variants except when otherwise specified;
– tests stated in Table 3 are mandatory only for the variants indicated.
3.3 Quality conformance inspection
Quality conformance inspection contains the tests stated in Table 1:
– Group A: routine tests;
– Groups A and B: lot-by-lot tests;
– Group C: periodic tests.
Unless otherwise stated in this PAS, all tests of Table 1 are mandatory.
Where a subgroup contains cumulative tests, the order of the tests is mandatory. Specimens
that have been subjected to tests denoted as destructive (D) shall not be released for delivery.
Specimens that have been subjected to tests denoted as non-destructive (ND) are permitted
to be released for delivery.
3.4 Formation of inspection lots
The basis for determination of sample size for the quality conformance inspection is the
heavy-duty
...
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