IEC 61810-4:2020
(Main)Electromechanical elementary relays - Part 4: General and safety requirements for reed relays
Electromechanical elementary relays - Part 4: General and safety requirements for reed relays
IEC 61810-4:2020 applies to electromechanical elementary relays with reed switches (reed contacts) incorporated into general control circuits. It defines the basic functional and safety requirements in all areas of electrical engineering or electronics in accordance with the parts of IEC 61810 series and IEC 62246 series.
IEC 61810-4:2020 defines technical deviations/additions to IEC 61810-1. It specifies type tests, routine tests, special tests and environmental tests to confirm the service conditions for applications.
Relais électromécaniques élémentaires - Partie 4: Exigences générales et de sécurité relatives aux relais à lames souples
L'IEC 61810-4:2020 s’applique aux relais électromécaniques élémentaires dont les contacts à lames souples sont destinés à être intégrés dans des circuits de commande générale. Elle définit les exigences fonctionnelles et les exigences de sécurité fondamentales dans tous les domaines de l’électrotechnique ou de l’électronique, conformément aux parties des séries IEC 61810 et IEC 62246.
Le présent document définit les écarts/ajouts techniques par rapport à l’IEC 61810-1. Il spécifie les essais de type, les essais individuels de série, les essais spéciaux et les essais d’environnement destinés à confirmer les conditions de service pour les applications.
General Information
Standards Content (Sample)
IEC 61810-4 ®
Edition 1.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromechanical elementary relays –
Part 4: General and safety requirements for reed relays
Relais électromécaniques élémentaires –
Partie 4: Exigences générales et de sécurité relatives aux relais à lames souples
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IEC 61810-4 ®
Edition 1.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromechanical elementary relays –
Part 4: General and safety requirements for reed relays
Relais électromécaniques élémentaires –
Partie 4: Exigences générales et de sécurité relatives aux relais à lames souples
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70 ISBN 978-2-8322-9010-1
– 2 – IEC 61810-4:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Influence quantities . 10
5 Rated values . 10
6 General provisions for testing . 11
6.1 General . 11
6.2 Type tests . 11
6.3 Routine tests. 12
6.4 Special tests . 13
7 Documentation and marking . 13
8 Heating . 14
9 Basic operating function . 14
10 Dielectric strength . 15
11 Electrical endurance . 16
12 Mechanical endurance . 16
13 Clearances, creepage distances and solid insulation . 16
13.1 General provisions . 16
14 Terminations . 16
15 Sealing . 16
16 Heat and fire resistance . 16
17 Short circuit capacity . 17
18 Vibration . 17
18.1 Procedure . 17
18.2 Requirements . 17
19 Shock . 17
19.1 Procedure . 17
19.2 Requirements . 18
Annexes . 19
Annex A (normative) Explanation regarding reed contacts of reed relays . 20
Annex P (informative) High frequency characteristics test . 21
P.1 General . 21
P.2 Procedures . 21
P.3 Requirements . 22
Annex Q (informative) Special tests – Tests for environmental category . 23
Q.1 General . 23
Q.2 Classification of equipment . 23
Q.3 Special tests for applications . 23
Q.4 Railway applications – Rolling stock. 23
Q.5 Tests and requirements . 24
Bibliography . 27
Figure 1 – Example of test arrangement for multi mounting . 14
Figure A.1 – Example explaining terms relating to reed contacts of reed relay . 20
Figure P.1 – Measurement circuit for scattering parameters measurement . 22
Table 1 – Insulation resistance . 10
Table 2 – Frequency range . 11
Table 3 – Type testing . 12
Table 4 – Routine tests . 12
Table 5 – Special relays data . 13
Table 6 – Dielectric voltage . 15
Table 7 – Vibration test conditions . 17
Table 8 – Shock test conditions . 17
Table Q.1 – Special requirements for railway applications – rolling stock . 24
Table Q.2 – Special tests for railway applications – rolling stock . 24
– 4 – IEC 61810-4:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMECHANICAL ELEMENTARY RELAYS –
Part 4: General and safety requirements for reed relays
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
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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.
International Standard IEC 61810-4 has been prepared by IEC technical committee 94: All-or-
nothing electrical relays.
The text of this document is based on the following documents:
FDIS Report on voting
94/482/FDIS 94/484/RVD
Full information on the voting for the approval of this document can be found in the report on
voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 61810 series, published under the general title Electromechanical
elementary relays, can be found on the IEC website.
This document is to be read in conjunction with IEC 61810-1.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://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.
– 6 – IEC 61810-4:2020 © IEC 2020
INTRODUCTION
Reed relays have been used in wide fields such as household and similar appliances, security
control systems for appliances, measuring instruments, medical equipment, semiconductor and
chip test equipment, information and communication equipment, power distribution facilities and
transit vehicles, etc.
IEC 61810-4 provides technical deviations/additions to IEC 61810-1 in order to specify general
and safety requirements for reed relays, as a result of component safety standards for relevant
systems.
The reed switches are used as the switching contacts of the reed relays, all the requirements
for reed contacts (reed switches) within the reed relay are read in conjunction with IEC 62246
(all parts).
ELECTROMECHANICAL ELEMENTARY RELAYS –
Part 4: General and safety requirements for reed relays
1 Scope
This part of IEC 61810 applies to electromechanical elementary relays with reed switches (reed
contacts) incorporated into general control circuits. It defines the basic functional and safety
requirements in all areas of electrical engineering or electronics in accordance with the parts of
IEC 61810 series and IEC 62246 series.
This document defines technical deviations/additions to IEC 61810-1. It specifies type tests,
routine tests, special tests and environmental tests to confirm the service conditions for
applications.
NOTE The terms reed switch(es) and reed contact(s) are both in use for the description of the contact set in reed
relays.
2 Normative references
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.
IEC 60068-2-17:1994, Basic environmental testing procedures – Part 2-17: Tests – Test Q:
Sealing
IEC 60077-1:2017, Railway applications – Electric equipment for rolling stock – Part 1: General
service conditions and general rules
IEC 60077-2:2017, Railway applications – Electric equipment for rolling stock – Part 2:
Electrotechnical components – General rules
IEC 60571:2012, Railway applications – Electric equipment used on rolling stock
IEC 61373:2010, Railway applications – Rolling stock equipment – Shock and vibration tests
IEC 61810-1:2015, Electromechanical elementary relays – Part 1: General and safety
requirements
IEC 61810-1:2015/AMD1:2019
IEC 61810-2:2017, Electromechanical elementary relays – Part 2: Reliability
IEC 61810-2-1:2017, Electromechanical elementary relays – Part 2-1: Reliability – Procedure
for the verification of B values
IEC 61810-7:2006, Electromechanical elementary relays – Part 7: Test and measurement
procedures
IEC 61810-10:2019, Electromechanical elementary relays – Part 10: Additional functional
aspects and safety requirements for high-capacity relays
– 8 – IEC 61810-4:2020 © IEC 2020
IEC 62246-1:2015, Reed switches – Part 1: Generic specification
IEC 62246-1-1:2018, Reed switches – Part 1-1: Generic specification – Blank detail
specification
IEC 62497-1:2010, Railway applications – Insulation coordination – Part 1: Basic requirements
– Clearances and creepage distances for all electrical and electronic equipment
IEC 62497-1:2010/AMD1:2013
IEC 62498-1:2010, Railway applications – Environmental conditions for equipment – Part 1:
Equipment on board rolling stock
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61810-1 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.2 Terms and definitions of relay types
3.2 of IEC 61810-1:2015 is applicable with the following addition:
3.2.7
reed relay
electromechanical control circuit devices with connecting terminals, consisting of reed switch
sets (reed contact sets) and coil fitting with/without a housing which could be plastic or metal
Note 1 to entry: See Figure A.1.
3.4 Terms and definitions of operating values
3.4 of IEC 61810-1:2015 is applicable with the following addition:
3.4.7
magnetic interference
tendency of a relay to be influenced by the magnetic field from an adjacent energized relay or
any other surrounding solenoid
Note 1 to entry: This influence can result in depression or elevation of the operate and release voltage of the
affected relay, possibly causing them to fall outside their specification.
Note 2 to entry: Magnetic interference can be minimized by alternating the polarity of adjacent relay coils, by
magnetic shielding, or by placing two relays at right angles to each other.
3.8 Terms and definitions related to high frequency characteristics
3.8.1
frequency range
set of frequencies over which an equipment can be adjusted to operate
satisfactorily
Note 1 to entry: The frequency range of a relay can be subdivided into switched subranges which may or may not
be contiguous.
[SOURCE: IEC 60050-702:1992, 702-09-68, modified – “an equipment“ has been replaced
with “a relay” in the “Note 1 to entry”]
3.8.2
capacitance
ability to store an electric charge between contacts
3.8.3
capacitance
ability to store an electric charge between contact and coil
Note 1 to entry: It can have adverse effects for use in high frequency signal transmission circuits of information and
communication equipment.
3.8.4
impedance
quotient of a voltage by a current for a passive linear two-terminal element or two-
terminal circuit with terminals A and B under sinusoidal conditions
[SOURCE: IEC 60050-131:2013, 131-12-43, modified – The definition has been replaced]
3.8.5
isolation
ratio of the power delivered to the output port of a relay, with open contacts, at a
specific frequency, compared to the power emitted from the corresponding output port
3.8.6
insertion loss
resulting from the insertion of a network into a transmission system, the ratio of the power
delivered to that part of the system following the network, before insertion of the network, to the
power delivered to that same part after insertion of the network
Note 1 to entry: The insertion loss is generally expressed in decibels.
[SOURCE: IEC 60050-726:1982, 726-06-07]
3.8.7
return loss
modulus of the reciprocal of the reflection factor, generally expressed in decibels
Note 1 to entry: When impedances can be defined, the return loss is given by the formula:
Z−Z'
−=20lg r 20lg
Z+ Z'
where Z is the characteristic impedance of a transmission line ahead of a discontinuity, or the impedance of a source,
and Z′ is the impedance after the discontinuity or the load impedance seen from the junction between the source and
the load.
[SOURCE: IEC 60050-702:1992, 702-07-25]
3.8.8
repeatability
closeness of agreement between the results of successive
measurements of the same measurand, carried out under the same conditions of measurement,
i.e.:
– by the same measurement procedure;
– 10 – IEC 61810-4:2020 © IEC 2020
– by the same observer;
– with the same measuring instruments, used under the same conditions;
– in the same laboratory;
– at relatively short intervals of time.
[SOURCE: IEC 60050-311:2001, 311-06-06, modified – The Note has been omitted.]
4 Influence quantities
Clause 4 of IEC 61810-1:2015 is applicable.
5 Rated values
Clause 5 of IEC 61810-1:2015 is applicable with the following deviations/additions.
5.2 Rated coil voltage/rated coil voltage range
b) DC voltage, recommended values:
15 V; 32 V; 36 V; 50 V; 55 V; 64 V; 72 V; 87 V; 96 V.
5.8 Contact loads
a) Resistive loads, recommended values
Current: 0,1 A; 0,2 A; 0,3 A; 0,5 A; 1 A; 2 A; 3 A; 5 A; 6 A; 8 A; 10 A; 12 A; 16 A; 20 A; 25 A;
30 A and submultiples thereof.
Voltage: 1 V; 3 V; 4,5 V; 5 V; 12 V; 24 V; 36 V; 42 V; 48 V; 110 V; 125 V; 230 V; 250 V;
300 V; 400 V; 480 V; 500 V; 690 V; 1 000 V (AC/DC); 1 500 V DC, 2 000 V DC, 3 000 V DC,
5 000 V DC, 7 000 V DC, 8 000 V DC, 10 000 V DC, 12 000 V DC and submultiples thereof.
b) Recommended inductive loads: see Annex F of IEC 62246-1:2015.
NOTE 1 IEC 61810-4 considers values higher than 1 500 V DC which is the scope of IEC 61810-1.
NOTE 2 Special requirement on withstand voltage for blocking inductive surge can be applied.
NOTE 3 The voltage values are based on 4.4 of IEC 62246-1:2015.
5.12 Withstand voltage
Recommended withstand voltages: 30 V; 60 V; 125 V; 200 V; 330 V; 500 V; 800 V; 1 500 V;
2 500 V; 4 000 V; 7 000 V; 10 000 V; 15 000 V; 18 000 V.
NOTE The voltage values are based on 4.4 of IEC 62246-1:2015.
5.13 Insulation resistance
Recommended insulation resistance values are listed in Table 1.
Table 1 – Insulation resistance
Insulation resistance (Ω)
8 9 10 11 12 13 14 15
>10 > 10 > 10 > 10 > 10 > 10 > 10 > 10
NOTE Test and measurement procedures for insulation resistance are accordance with 4.11 of IEC 61810-7:2006.
5.14 Frequency range
Recommended contact load frequency range can be specified according to Table 2.
Table 2 – Frequency range
Frequency range (Hz)
5 6 6
3 × 10 3 × 10 30 × 10 DC DC DC DC DC DC
to to to to to to
to to to
8 9 9 9 10 10
6 6 6
1 × 10 2 × 10 4 × 10 7 × 10 1,5 × 10 2 × 10
3 × 10 30 × 10 300 × 10
6 General provisions for testing
Clause 6 of IEC 61810-1:2015 is applicable with the following additions:
6.1 General
Tests shall be made to prove compliance with the requirements laid down in this document.
Tests are as follows:
– type tests which shall be made on representative samples of each particular reed relays;
– routine tests which shall be made on each individual piece of reed relays manufactured to
this document;
– special tests which shall be made following a technical specification, according to
agreement between manufacturer and user;
6.2 Type tests
The specimens shall be grouped in 11 inspection lots, and the related tests shall be taken from
Table 3 of this document.
Table 3 of this document replaces Table 3 of IEC 61810-1:2015.
– 12 – IEC 61810-4:2020 © IEC 2020
Table 3 – Type testing
Inspection Tests Clause Additional references
lot
1 Documentation and marking 7 IEC 60417
Heating (typical coil voltage) 8 IEC 60085
Basic operating function (all coil voltages) 9
2 Dielectric strength 10
3 Electrical endurance (per contact load and contact material) 11
4 Mechanical endurance 12
5 Clearances, creepage distances and distances through solid 13 IEC 60664-1
insulation
6 Terminations 14
Sealing (if applicable) 15 IEC 60068-2-17
7 Heat and fire resistance 16 IEC 60695-2-10
8 Short-circuit capacity (if applicable) 17
9 Vibration test (if applicable) 18 IEC 60068-2-6
10 Shock test (if applicable) 19 IEC 60068-2-27
11 High frequency characteristics (if applicable) Annex P
In the relevant clauses, the requirements to be checked as well as the related tests are specified.
The routine tests shall be taken from Table 4.
6.3 Routine tests
Table 4 of this document replaces Table 4 of IEC 61810-1:2015/AMD1:2019.
Table 4 – Routine tests
Inspection
Test Clause Additional references
lot
e
all Marking and documentation 7 Table 6 of IEC 61810-1:2015, 1a; 1b; 1c
e a b
Basic operating functions
all 9 Mode II applies
e c
Sealing (option) IEC 60068-2-17 or IEC 62246-1-1
all 15
e d
Dielectric strength －
all 10.2
a
The preconditioning within Table 11 of IEC 61810-1:2015 for operate as well as release does not apply.
For routine testing 9.2.2 of IEC 61810-1:2015 could be handled via 9.2.1 of IEC 61810-1:2015.
As these tests is usually carried out at room temperature, the manufacturer has to specify an appropriate level
for the operate or release voltage to ensure that the relay will work at the maximum (operate) and minimum
(release) permissible ambient temperature within the defined values.
b
9.3 of IEC 61810-1:2015 for bistable relays applies accordingly.
c
The manufacturer specifies the detail conditions.
d
Dielectric test for routine test could be carried out for duration of 1 s in accordance with IEC 61810-7:2006,
4.9. The test voltage shall not have any negative impact on the insulation (further use). Other parameters like
current limit or specification of the high-voltage transformer shall be specified by the manufacturer at an
appropriate value.
10.3 of IEC 61810-1:2015 may apply as alternate to 10.2 of IEC 61810-1:2015 especially for existing designs.
e
For routine tests by definition, all products are tested.
6.4 Special tests
6.4.1 General requirements
The conducting of special tests is at the discretion of the manufacturer.
The samples shall pass the type tests and routine tests which Table 3 and Table 4 specify
accordingly.
6.4.2 Environmental tests
In cases where it is necessary to verify the behaviour of products under special environmental
conditions (e.g. damp heat, salt mist, vibration and shock), the tests shall be conducted
according to Annex Q.
7 Documentation and marking
Clause 7 of IEC 61810-1:2015 is applicable with the following deviations/additions.
Table 5 of this document adds to Table 6 of IEC 61810-1:2015.
Table 5 – Special relays data
N° Data Notes Place of indication
2 Coil data
2d Category or class (Optional) Values of the limits (see Q.5.1) Relay or catalogue or instruction
sheet
Voltage changes
Overvoltage
3 Contact data
3h Capacitance (Optional) Value of the limits Catalogue or instruction sheet
(Between open contacts and
between coil and contacts)
4 Insulation data
4f Withstand voltage (Optional) Values of the limits or class (see 5.12) Catalogue or instruction sheet
(Between open contacts and
between coil and contacts)
4g Insulation resistance (Optional) Values of the limits or class (see 5.13) Catalogue or instruction sheet
(Between open contacts and
between coil and contacts)
5 General data
5l Vibration Category or class (Optional, see Relay or catalogue or
Q.5.3) instruction sheet
5m Shock Category or class (Optional, see Relay or catalogue or
Q.5.3) instruction sheet
6 High frequency characteristics (Optional)
6a Frequency range Values of the limits or class (see 5.13) Catalogue or instruction sheet
6b Isolation Values of the limits Catalogue or instruction sheet
6c Insertion loss Values of the limits Catalogue or instruction sheet
6d Return loss Values of the limits Catalogue or instruction sheet
NOTE 1 For special data, if typical applications (high frequency characteristic, etc.) are applicable, these relays
data in Table 5 are added.
NOTE 2 For special data, if railway applications are applicable, these relays data for category or class (battery
voltage, vibration and shock, etc.) in Table 5 are added.
– 14 – IEC 61810-4:2020 © IEC 2020
8 Heating
Clause 8 of IEC 61810-1:2015 is applicable.
9 Basic operating function
Clause 9 of IEC 61810-1:2015 is applicable with the following additions:
9.4 Magnetic interference
The manufacturer shall declare different values for functional operate voltage and release
voltage between single mounting and multi mounting (i.e. reed relays are mounted in array
arrangement).
For multi mounting, the test is carried out in accordance with Method 2 of 4.37 of IEC 61810-
7:2006 to check the values of functional performance of the relay subjected to the effects of
external magnetic induction from other relays. The mounting grid pattern shall be specified by
the manufacturer. See Figure 1 for example, all relevant details of the test arrangement (e.g.,
S : horizontal mounting distance and S : vertical mounting distance and coil polarity) are to be
1 2
indicated in the test report.
Where, 1, 2: contact terminals, a, b: coil terminals
S : horizontal mounting distance between relays, S : vertical mounting distance between relays
1 2
Figure 1 – Example of test arrangement for multi mounting
The manufacturer shall define in case for applications with additional influence from surrounding
solenoid (like from filter or switching power supplies inductances) which additional magnetic
influence testing shall be performed.
To cover this, the method 1 and/or 3 of 4.37 of IEC 61810-7:2006 is recommended.
9.5 Time parameters, contact resistance
The manufacturer shall test operating time, release time, bounce time and contact resistance
at the routine tests, see Table 4.
NOTE Flywheel diode (omit if not applicable) are connected in parallel with the coils when measuring time
parameters unless otherwise specified in the detail specification.
10 Dielectric strength
Clause 10 of IEC 61810-1:2015 is applicable with the following deviations/additions.
Addition to IEC 61810-1:2015:
Requirements for reed contacts (reed switches) within the reed relay are in conjunction with
IEC 62246 (all parts).
10.2.1 Requirements
The leakage current through insulation between open contacts, between adjacent contacts and
between coil and contacts, in Table 6, shall not exceed 3 mA for a specified duration (at least
60 s).
Table 6 – Dielectric voltage
a
Rated voltage U
Test place
Test voltage
n
V V
U < 30 250
n
30 ≤ U < 60 500
n
60 ≤ U < 125 1 300
n
125 ≤ U < 250 1 500
n
250 ≤ U < 330 1 600
n
330 ≤ U < 500 1 700
n
500 ≤ U < 800 2 000
n
Between adjacent contacts,
and between coil and contacts
800 ≤ U < 1 500 2 700
n
1 500 ≤ U < 2 500 3 700
n
2 500 ≤ U < 4 000 5 200
n
4 000 ≤ U < 7 000 8 200
n
7 000 ≤ U < 10 000 11 200
n
10 000 ≤ U < 15 000 16 200
n
15 000 ≤ U < 18 000 19 200
n
Between open contacts Test voltages are given in 6.8.1 of IEC 62246-1:2015.
a
The values are derived from the formula U + 1 200 V (rounded).
n
– 16 – IEC 61810-4:2020 © IEC 2020
11 Electrical endurance
Clause 11 of IEC 61810-1:2015 is applicable with the following deviations/additions.
Overload and endurance test shall be selected by the manufacturer in accordance with 6.22 of
IEC 62246-1:2015; however, the requirements related to the test coil defined in Annex A of
IEC 62246-1:2015 and the ambient test environment are not applicable.
11.3 Failure and malfunction criteria
The last sentence of this subclause of IEC 61810-1:2015 is deleted and replaced by:
The category and criteria of temporary malfunction are specified according to 6.22.8 and 6.22.9
c) of IEC 62246-1:2015.
11.4 Final dielectric test
The fourth sentence of this subclause of IEC 61810-1:2015 is deleted.
12 Mechanical endurance
Clause 12 of IEC 61810-1:2015 is applicable.
13 Clearances, creepage distances and solid insulation
Clause 13 of IEC 61810-1:2015 is applicable with the following deviations/additions.
13.1 General provisions
Addition to IEC 61810-1:2015:
This document does not deal with distances between the reed contacts (reed switch) within the
reed relay as insulation is guaranteed with withstand voltage as defined in 10.2.
14 Terminations
Clause 14 of IEC 61810-1:2015 is applicable.
15 Sealing
Clause 15 of IEC 61810-1:2015 is applicable with the following deviations/additions.
The sealing test is performed only with reed contacts (reed switches) within the reed relay.
The test shall be performed in conjunction with IEC 60068-2-17:1994 or IEC 62246-1-1:2018,
5.2.
16 Heat and fire resistance
Clause 16 of IEC 61810-1:2015 is applicable.
17 Short circuit capacity
IEC 61810-10:2019, Annex R is applicable.
18 Vibration
18.1 Procedure
Subclause 4.28, Procedure 1 of IEC 61810-7:2006 is applicable with the following additions.
This test is added in accordance with Table 7.
Table 7 – Vibration test conditions
Range of frequency (Hz) 10 to 55
Vibration double amplitude (mm) 1,5
Sweep rate 10 to 55 to 10 Hz, 1 sweep/min.
Three mutually perpendicular axes,
Directions and hours
2 hours each without coil voltage
How to change frequency Logarithmic or linear approximation
Total test time (h) 6
NOTE No switching load between contacts.
18.2 Requirements
During the test, no visible damage (e.g., glass broken of reed contacts) shall be observed.
Immediately after the test, the reed relay shall meet the requirements of the following tests:
– visual inspection (4.6 of IEC 61810-7:2006);
– basic operating function (9.2.1 of IEC 61810-1:2015);
– sealing (Clause 15 of this document).
19 Shock
19.1 Procedure
Subclause 4.26, Method 1 of IEC 61810-7:2006 is applicable with the following
deviations/additions.
This test is added in accordance with Table 8.
18 shocks in total shall be applied 3 times in each direction of three mutually perpendicular
axes without coil voltage.
Table 8 – Shock test conditions
Peak acceleration Duration of pulse Velocity change
m/s ms m/s
500 11 3,43
NOTE No switching load between contacts.
– 18 – IEC 61810-4:2020 © IEC 2020
19.2 Requirements
During the test, no visible damage (e.g., glass broken of reed contacts) shall be observed.
Immediately after the test, the reed relay shall meet the requirements of the following tests:
– visual inspection (4.6 of IEC 61810-7:2006);
– basic operating function (9.2.1 of IEC 61810-1:2015);
– sealing (Clause 15 of this document).
Annexes
Addition to IEC 61810-1:2015:
All annexes of IEC 61810-1:2015 are applicable with the following deviations/additions.
– 20 – IEC 61810-4:2020 © IEC 2020
Annex A
(normative)
Explanation regarding reed contacts of reed relays
Replacement of Annex A of IEC 61810-1:2015:
For basic operating function, Figure A.1 of this document replaces Figure A.2 of IEC 61810-
1:2015.
All requirements for reed contacts (reed switches) within the reed relay are in conjunction with
IEC 62246 (all parts).
Key
1 Reed contact set
2 Reed contact (reed switch)
3 Contact blade
4 Contact point
5 Sealed glass
6 Inner gas or vacuum
7 Fixing
Figure A.1 – Example explaining terms relating to reed contacts of reed relay
Annex P
(informative)
High frequency characteristics test
Addition to IEC 61810-1:2015:
P.1 General
High repeatability and durability of the RF characteristics to switch signals from DC to 3 GHz
and above are required. This can be useful for switching signals between oscilloscopes,
spectrum analysers, network analysers, and other RF test equipment.
In order to verify the requirements regarding high frequency characteristics for use in high
frequency signal transmission circuits, the following tests shall be carried out by the
manufacturer.
The high frequency characteristics of the reed relay are specified with the measurement results
of an insertion loss, a return loss and isolation by using scattering parameters.
P.2 Procedures
The scattering parameters for isolation, insertion loss and return loss shall be measured by the
test circuit given in Annex P, unless otherwise specified in the detail specification.
The following procedures shall be followed to measure high frequency characteristics:
a) The coaxial communication cable should be used at connection length, less than 1 m with
the wide frequency range (see Figure P.).
b) The radio-frequency connector should be used with the wide frequency range and/or the
low insertion loss.
c) Substrate for measurement: In order to reduce the insertion loss, the design of the substrate
is most important. Therefore, the manufacturer shall specify the measurement conditions
for the substrate material of the testing PCB.
d) The test for insulation should be measured up to 3 times of high frequency which
manufacturer recommends when reed relay is OFF status.
e) The tests for insertion loss and return loss should be measured up to 3 times of high
frequency which is recommended by the manufacturer when the reed relay displays an ON
status.
f) The detailed repeatability evaluation procedure (e.g. repeatability is less than ± 0,1 dB after
300 000 operations with no switching load) shall be used with agreement between the user
and the manufacturer.
– 22 – IEC 61810-4:2020 © IEC 2020
Figure P.1 – Measurement circuit for scattering parameters measurement
P.3 Requirements
For the measurement, the frequency band of the reed relay should be defined as a frequency
lower than the maximum frequency value at which the insertion loss is –3 dB in power ratio. In
that case, the conditions for return loss and insertion loss should be specified by the
manufacturer.
The scattering parameters should be measured in both forward and reverse directions.
Unless otherwise prescribed in the detail specification, there shall be a correctly matched
impedance for a reed relay to function as an efficient component in a 50 Ω transmission line.
Annex Q
(informative)
Special tests – Tests for environmental category
Addition to IEC 61810-1:2015:
Q.1 General
The purpose of this annex is to define the requirements allowing to assess the ability of a reed
relay to perform its function where intended to be used under certain climatic conditions
different from the type tests as defined in Table 3.
This annex states the service conditions and sequences and the results to be obtained.
The following special tests shall be made either at the discretion of the manufacturer or
according to an agreement between the manufacturer and the user. As special tests, these
additional tests are not mandatory, and it is necessa
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