IEC 62314:2006

INTERNATIONAL IEC
STANDARD 62314
First edition
2006-05
Solid-state relays
Reference number
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INTERNATIONAL IEC
STANDARD 62314
First edition
2006-05
Solid-state relays
 IEC 2006  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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– 2 – 62314  IEC:2006(E)
CONTENTS
FOREWORD.4

1 Scope and object.6
2 Normative references .7
3 Terms and definitions .8
4 Characteristics of solid-state relays .12
4.1 Summary of characteristics .12
4.2 Type of solid-state relay .12
4.3 Rated and limiting values for load circuits.12
4.4 Load category .13
4.5 Rated and limiting values for control circuits.14
5 Marking and documentation.14
5.1 Marking .14
5.2 Data .15
5.3 Instructions for installation, operation and maintenance .15
6 Normal conditions.15
6.1 Normal service, transport and storage conditions .15
6.2 Normal mounting conditions .16
7 Constructional requirements .16
7.1 Materials .16
7.2 Clearances and creepage distances .16
7.3 Heat and fire resistance .16
7.4 Terminals .16
8 Performance requirements .17
8.1 Temperature-rise.17
8.2 Overload test.18
8.3 Endurance test .20
8.4 Insulation tests .21
8.5 Impact test .21
8.6 Ball pressure test .21
8.7 OFF-state leakage current measurement.21
8.8 ON-state voltage drop measurement .21
9 Type test .22

Annex A (normative) Insulation coordination .23
Annex B (normative) Glow-wire test .34
Annex C (normative) Quick-connect terminations.37

Figure B.1 – Glow-wire and position of the thermocouple.35
Figure B.2 – Glow-wire test apparatus (example).36

62314  IEC:2006(E) – 3 –
Table 1 – Load categories.13
Table 2 – Required data .15
Table 3 – Test conditions for test Tb .17
Table 4 – Minimum requirements for overload capability test conditions .19
Table 5 – Endurance test .20
Table A.1 – Rated impulse withstand voltages (waveform: 1,2/50 µs) for solid-state
relays connected directly to the mains .24
Table A.2 – Minimum clearances .26
Table A.3 – Minimum creepage distances for solid-state relays .27
Table A.4 – Preconditioning .29
Table C.1 – Cross-sectional areas for conductors depending on the resistive current
carried by the terminal .38

– 4 – 62314  IEC:2006(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SOLID-STATE 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
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International Standard IEC 62314 has been prepared by technical committee 94: All-or-
nothing electrical relays.
The text of this standard is based on the following documents:
FDIS Report on voting
94/232/FDIS 94/235/RVD
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.

62314  IEC:2006(E) – 5 –
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.

– 6 – 62314  IEC:2006(E)
SOLID-STATE RELAYS
1 Scope and object
This International Standard applies to particular all-or-nothing electrical relays denominated
solid-state relays intended for performing electrical operations by single step function
changes to the state of electric circuits between the OFF-state and the ON-state and vice
versa. It is applicable to solid-state relays with rated voltages up to 750 V and with a.c. output
current up to 160 A.
NOTE Requirements for solid-state relays with d.c. output circuits are under consideration.
This standard deals with solid-state relays which are intended for incorporation in other
products or equipment. As such, solid state relays are considered to be components and this
standard defines the basic safety-related and functional requirements for solid-state relays as
stand-alone components.
Such solid-state relays are incorporated in products or equipment which themselves have to
comply with the relevant product and/or application standard(s) to meet their intended
application. The following are examples of such applications:
– general industrial equipment;
– electrical facilities;
– electrical machines;
– electrical appliances;
– office communications;
– building automation and environmental control;
– automation and process control;
– electrical installation engineering;
– medical engineering;
– telecommunications;
– vehicle engineering;
– transportation engineering;
– lighting control.
Solid state relays are components (not stand alone devices) and as such do not perform a
direct function. Therefore, no EMC requirements are included in this standard.
NOTE This is in line with the European EMC Directive.
Where the appl
...