SIST EN 61812-1:2011

SLOVENSKI STANDARD
SIST EN 61812-1:2011
01-oktober-2011
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SIST EN 116000-2:2002
SIST EN 61812-1:1999
SIST EN 61812-1:1999/A11:2000
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Time relays for industrial and residential use - Part 1: Requirements and tests
Ta slovenski standard je istoveten z: EN 61812-1:2011
ICS:
29.120.70 Releji Relays
SIST EN 61812-1:2011 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61812-1:2011

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SIST EN 61812-1:2011

EUROPEAN STANDARD
EN 61812-1

NORME EUROPÉENNE
August 2011
EUROPÄISCHE NORM

ICS 29.120.70 Supersedes EN 61812-1:1996 + corr. Feb.1999 + A11:1999, EN 116000-2:1992


English version


Time relays for industrial and residential use -
Part 1: Requirements and tests
(IEC 61812-1:2011)


Relais à temps spécifié pour applications Zeitrelais (Relais mit festgelegtem
industrielles et résidentielles - Zeitverhalten) für industrielle
Partie 1: Exigences et essais Anwendungen und
(CEI 61812-1:2011) für den Hausgebrauch -
Teil 1: Anforderungen und Prüfungen
(IEC 61812-1:2011)





This European Standard was approved by CENELEC on 2011-06-29. 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, Croatia, 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

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61812-1:2011 E

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SIST EN 61812-1:2011
EN 61812-1:2011 - 2 -
Foreword
The text of document 94/324/FDIS, future edition 2 of IEC 61812-1, prepared by IEC TC 94,
All-or-nothing electrical relays, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 61812-1 on 2011-06-29.
This European Standard supersedes EN 61812-1:1996 + corrigendum February 1999 + A11:1999 and
EN 116000-2:1992.
EN 61812-1:2011 includes the following significant technical changes with respect to EN 61812-1:1996:
– update of references;
– addition of terms and definitions more commonly used by industry;
– addition of timing charts to help explain terms and definitions involving a sequence of events;
– renumbering of clauses to bring them into a more logical order;
– addition of provisions for residential use.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2012-03-29
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2014-06-29
with the EN have to be withdrawn
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directive (2004/108/EC). See Annex ZZ.
Annexes ZA and ZZ have been added by CENELEC.
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SIST EN 61812-1:2011
- 3 - EN 61812-1:2011

Endorsement notice
The text of the International Standard IEC 61812-1:2011 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 60060-1:2010 NOTE  Harmonized as EN 60060-1:2010 (not modified).
IEC 60068-2-78:2001 NOTE  Harmonized as EN 60068-2-78:2001 (not modified).
IEC 60664-4:2005 NOTE  Harmonized as EN 60664-4:2006 (not modified).
IEC 60669-2-3:2006 NOTE  Harmonized as EN 60669-2-3:2006 (not modified).
IEC 60721-3-3:1994 NOTE  Harmonized as EN 60721-3-3:1995 (not modified).
IEC 60730-2-7:2008 NOTE  Harmonized as EN 60730-2-7:2010 (modified).
IEC 60947-1:2007 NOTE  Harmonized as EN 60947-1:2007 (not modified).
IEC 60947-5-1:2003 NOTE  Harmonized as EN 60947-5-1:2004 (not modified).
IEC 61180-1:1992 NOTE  Harmonized as EN 61180-1:1994 (not modified).
__________

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SIST EN 61812-1:2011
EN 61812-1:2011 - 4 -
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 60050-444 2002 International Electrotechnical Vocabulary - - -
Part 444: Elementary relays


IEC 60050-445 2010 International Electrotechnical Vocabulary - - -
Part 445: Time relays


IEC 60068 Series Environmental testing EN 60068 Series


IEC 60068-2-2 2007 Environmental testing - EN 60068-2-2 2007
Part 2-2: Tests - Test B: Dry heat


IEC 60068-2-6 2007 Environmental testing - EN 60068-2-6 2008
Part 2-6: Tests - Test Fc: Vibration
(sinusoidal)


IEC 60068-2-27 2008 Environmental testing - EN 60068-2-27 2009
Part 2-27: Tests - Test Ea and guidance:
Shock


IEC 60085 2007 Electrical insulation - Thermal evaluation and EN 60085 2008
designation


IEC 60112 2003 Method for the determination of the proof and EN 60112 2003
the comparative tracking indices of solid
insulating materials


IEC 60529 1989 Degrees of protection provided by enclosures EN 60529 1991
(IP Code) + corr. May 1993


IEC 60664 Series Insulation coordination for equipment within EN 60664-1 Series
low-voltage systems


IEC 60664-1 2007 Insulation coordination for equipment within EN 60664-1 2007
low-voltage systems -
Part 1: Principles, requirements and tests


IEC 60664-3 2003 Insulation coordination for equipment within EN 60664-3 2003
low-voltage systems -
Part 3: Use of coating, potting or moulding for
protection against pollution


IEC 60664-5 2007 Insulation coordination for equipment within EN 60664-5 2007
low-voltage systems -
Part 5: Comprehensive method for
determining clearances and creepage
distances equal to or less than 2 mm


IEC 60695-2-11 2000 Fire hazard testing - EN 60695-2-11 2001
Part 2-11: Glowing/hot-wire based test
methods - Glow-wire flammability test method
for end-products


IEC 60695-10-2 2003 Fire hazard testing - EN 60695-10-2 2003
Part 10-2: Abnormal heat - Ball pressure test

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SIST EN 61812-1:2011
- 5 - EN 61812-1:2011
Publication Year Title EN/HD Year

IEC 60947-5-4 2002 Low-voltage switchgear and controlgear - EN 60947-5-4 2003
Part 5-4: Control circuit devices and switching
elements - Method of assessing the
performance of low-energy contacts - Special
tests


IEC 60999-1 1999 Connecting devices - Electrical copper EN 60999-1 2000
conductors - Safety requirements for screw-
type and screwless-type clamping units -
Part 1: General requirements and particular
requirements for clamping units for conductors
from 0,2 mm² up to 35 mm² (included)


IEC 61000-4-2 2008 Electromagnetic compatibility (EMC) - EN 61000-4-2 2009
Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity
test


IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) - EN 61000-4-3 2006
Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test


IEC 61000-4-4 2004 Electromagnetic compatibility (EMC) - EN 61000-4-4 2004
Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst
immunity test


IEC 61000-4-5 2005 Electromagnetic compatibility (EMC) - EN 61000-4-5 2006
Part 4-5: Testing and measurement
techniques - Surge immunity test


IEC 61000-4-6 2008 Electromagnetic compatibility (EMC) - EN 61000-4-6 2009
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields


IEC 61000-4-8 2009 Electromagnetic compatibility (EMC) - EN 61000-4-8 2010
Part 4-8: Testing and measurement
techniques - Power frequency magnetic field
immunity test


IEC 61000-4-11 2004 Electromagnetic compatibility (EMC) - EN 61000-4-11 2004
Part 4-11: Testing and measurement
techniques - Voltage dips, short interruptions
and voltage variations immunity tests


IEC 61210 (mod) 2010 Connecting devices - Flat quick-connect EN 61210 2010
terminations for electrical copper conductors -
Safety requirements


IEC 61810-1 2008 Electromechanical elementary relays - EN 61810-1 2008
Part 1: General requirements


IEC 61984 2008 Connectors - Safety requirements and tests EN 61984 2009


IEC 62314 2006 Solid-state relays EN 62314 2006


CISPR 11 (mod) 2009 Industrial, scientific and medical equipment - EN 55011 2009
+ A1 2010 Radio-frequency disturbance characteristics - + A1 2010
Limits and methods of measurement


CISPR 22 (mod) 2008 Information technology equipment - Radio EN 55022 2010
disturbance characteristics - Limits and
methods of measurement

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SIST EN 61812-1:2011
EN 61812-1:2011 - 6 -
Annex ZZ
(informative)

Coverage of Essential Requirements of EC Directives

This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers all
relevant essential requirements as given in Article 1 of Annex I of EC Directive 2004/108/EC.
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directive concerned.
WARNING: Other requirements and other EC Directives may be applicable to the products falling within
the scope of this standard.
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SIST EN 61812-1:2011
IEC 61812-1
®

Edition 2.0 2011-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Time relays for industrial and residential use –
Part 1: Requirements and tests

Relais à temps spécifié pour applications industrielles et résidentielles –
Partie 1: Exigences et essais


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 29.120.70 ISBN 978-2-88912-488-6

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 61812-1:2011
– 2 – 61812-1  IEC:2011
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 9
3.1 Terms and definitions related to general terms . 9
3.2 Terms and definitions of relay types . 11
4 Influence quantities . 17
5 Rated values . 18
5.1 General . 18
5.2 Input voltage and frequency . 18
5.3 Release voltage . 19
5.4 Power consumption . 19
5.5 Output circuit . 19
5.5.1 Electromechanical output circuit . 19
5.5.2 Mechanical endurance . 19
5.5.3 Solid state output circuit . 19
5.5.4 Endurance and operating frequency . 20
5.5.5 Conditional short circuit current . 20
5.6 Ambient temperature . 20
5.7 Transport and storage temperature . 20
5.8 Humidity . 20
5.9 Pollution degree . 21
5.10 Altitude . 21
5.11 Timing circuit function . 21
5.11.1 General . 21
5.11.2 Setting accuracy . 21
5.11.3 Repeatability . 21
5.11.4 Recovery time and minimum control impulse . 21
6 Provisions for testing . 22
7 Documentation and marking . 22
7.1 Data . 22
7.2 Marking . 24
8 Heating . 25
8.1 General . 25
8.2 Test conditions . 25
8.3 Heating of terminals . 25
8.3.1 General . 25
8.3.2 Heating of screw terminals and screwless terminals . 25
8.3.3 Heating of quick-connect terminations . 26
8.3.4 Heating of sockets . 26
8.3.5 Heating of alternative termination types . 27
8.4 Heating of accessible parts . 27
8.5 Heating of insulating materials . 27
9 Basic operating function . 27
9.1 General . 27
9.2 Operate . 27

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SIST EN 61812-1:2011
61812-1  IEC:2011 – 3 –
9.3 Release . 28
9.4 Time function . 28
9.4.1 Functional test at reference values of input quantities . 28
9.4.2 Influencing effects of voltage and temperature . 28
10 Insulation . 28
10.1 General . 28
10.2 Preconditioning . 29
10.3 Dielectric strength . 29
10.3.1 General . 29
10.3.2 Impulse withstand test . 29
10.3.3 Dielectric a.c. power frequency voltage test . 30
10.4 Protection against direct contact . 31
11 Electrical endurance . 31
11.1 General . 31
11.2 Resistive loads, inductive loads, and special loads . 32
11.3 Low energy loads . 32
12 Conditional short-circuit current . 32
12.1 General . 32
12.2 Test procedure . 32
12.3 Test circuit electromechanical output circuit . 32
12.4 Test circuit solid state output circuit . 33
12.5 Condition of switching element after test . 34
13 Clearances and creepage distances . 34
13.1 General . 34
13.2 Creepage distances. 35
13.3 Clearances . 36
13.4 Measurement of creepage distances and clearances . 37
14 Mechanical strength . 37
14.1 General . 37
14.2 Mechanical strength of terminals and current-carrying parts . 38
14.2.1 General . 38
14.2.2 Mechanical strength of screw terminals and screwless terminals . 38
14.2.3 Mechanical strength of flat quick-connect terminations . 38
14.2.4 Mechanical strength of sockets . 38
14.2.5 Mechanical strength of alternative termination types . 38
15 Heat and fire resistance. 38
16 Vibration and shock . 39
16.1 Vibration. 39
16.2 Shock . 39
17 Electromagnetic compatibility (EMC) . 40
17.1 General . 40
17.2 EMC immunity . 40
17.3 EMC radiated and conducted emission . 42
Annex A (informative) Ball pressure test . 44
Bibliography . 45

Figure 1 – Definition of ports . 11

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SIST EN 61812-1:2011
– 4 – 61812-1  IEC:2011
Figure 2 – Definition of symbols . 11
Figure 3 – Power on-delay relay . 12
Figure 4 – Power off-delay relay . 12
Figure 5 – Off-delay relay with control signal . 12
Figure 6 – On- and off-delay relay with control signal . 13
Figure 7 – Flasher relay . 13
Figure 8 – Star-delta relay . 14
Figure 9 – Summation time relay. 14
Figure 10 – Pulse delayed relay . 15
Figure 11 – Pulse delayed relay with control signal . 15
Figure 12 – Interval relay . 15
Figure 13 – Interval relay with control signal . 16
Figure 14 – Retriggerable interval relay with control signal on . 16
Figure 15 – Retriggerable interval relay with control signal off . 17
Figure 16 – Maintained time relay . 17
Figure 17 – Test circuit electromechanical output, conditional short-circuit current . 33
Figure 18 – Test circuit solid state output, conditional short-circuit current . 34

Table 1 – Influence quantities and reference values . 17
Table 2 – Preferred values of endurance . 20
Table 3 – Preferred values of maximum permissible operating frequency. 20
Table 4 – Recommended final values of the setting range . 21
Table 5 – Type testing . 22
Table 6 – Required relay information . 23
Table 7 – Areas and lengths of conductors dependent on the current carried by the
terminal . 26
Table 8 – Temperature rise limits of accessible parts . 27
Table 9 – Changing of influencing quantities . 28
Table 10 – Impulse test for basic insulation . 30
Table 11 – Dielectric test voltage for devices suitable for use in single-phase three or
two-wire a.c. and d.c. systems . 30
Table 12 – Dielectric test voltage for devices suitable for use in three-phase four or
three-wire a.c. systems . 31
Table 13 – Minimum creepage distances for basic insulation . 36
Table 14 – Minimum clearances for basic insulation . 37
Table 15 – Minimum clearances in controlled overvoltage conditions for internal
circuits . 37
Table 16 – Environmental conditions influencing EMC . 40
Table 17 – Immunity tests for industrial environments . 41
Table 18 – Immunity tests for residential, commercial and light-industrial environments . 42

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SIST EN 61812-1:2011
61812-1  IEC:2011 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________

TIME RELAYS FOR INDUSTRIAL AND RESIDENTIAL USE –

Part 1: Requirements and tests


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
Committ
...