Requirements for automatic reclosing devices (ARDs) for circuit-breakers, RCBOs and RCCBs for household and similar uses (IEC 63024:2017)

This International Standard applies to automatic reclosing devices (ARDs) for household and
similar uses, for rated voltage not exceeding 440 V AC, and which are intended to be used in
combination with circuit-breakers, RCCBs and RCBOs, and designed either for factory
assembly or for assembly on site.
These devices are intended to reclose main protective devices (MPDs) such as circuit-breakers
complying with IEC 60898-1 and/or IEC 60898-2, RCCBs complying with IEC 61008-1 and/or
IEC 62423, and RCBOs complying with IEC 61009-1 and/or IEC 62423 after tripping of those
devices in order to re-establish continuity of service.
This document includes the following types of ARDs:
– ARDs with assessment means, reclosing only if both the prospective line current and the
prospective earth-fault current do not exceed given values;
– ARDs with assessment means, reclosing only if the prospective line current does not exceed a
given value;
– ARDs with assessment means, reclosing only if the prospective earth-fault current does
not exceed a given value;
– ARDs that recloses without any assessment.
NOTE 1 Installation rules define the condition of use of each of the products and the types.
NOTE 2 The assessment cannot substitute the verifications required by IEC 60364-6.
NOTE 3 The requirements and tests for the assessment function in IT systems are under consideration.
This document does not apply to ARDs with multiple settings adjustable by means accessible
to the user in normal service.
Devices covered by this document are intended to be suitable for operation by uninstructed
persons without the need for maintenance.

Anforderungen an automatische Wiedereinschalteinrichtungen für Leitungsschutzschalter, RCBOs, RCCBs für Hausinstallationen und ähnliche Zwecke (IEC 63024:2017)

Exigences pour les dispositifs à refermeture automatique (DRA) pour disjoncteurs, ID et DD, pour usages domestiques et analogues (IEC 63024:2017)

L'IEC 63024:2017 s’applique aux dispositifs de refermeture automatique (DRA) pour usages domestiques et analogues, à des tensions assignées de 440 V c.a au maximum, et qui sont destinés à être utilisés conjointement avec des disjoncteurs, des ID et des DD. Ces dispositifs sont conçus pour un montage en usine ou sur site. Ces dispositifs sont destinés à refermer des dispositifs de protection principaux (DPP) tels que les disjoncteurs conformes à l’IEC 60898-1 et/ou à l’IEC 60898-2, les ID conformes à l’IEC 61008-1 et/ou à l’IEC 62423, ainsi que les DD conformes à l’IEC 61009-1 et/ou à l’IEC 62423 après un déclenchement de ces dispositifs, afin de rétablir la continuité du service.

Zahteve za naprave za avtomatski ponovni vklop (ARDs) odklopnikov, RCBOs in RCCBs za gospodinjsko in podobno uporabo (IEC 63024:2017)

Ta mednarodni standard se uporablja za naprave za avtomatski ponovni vklop (ARD) v gospodinjski in podobni uporabi, kadar naznačena napetost ne presega 440 V izmenične napetosti, pri čemer so te naprave namenjene uporabi v kombinaciji z odklopniki in/ali odklopniki na diferenčni tok (RCCB) in/ali odklopniki na diferenčni tok z nadtokovno zaščito (RCBO) ter zasnovane za sestavo v tovarni ali na mestu uporabe.
Te naprave so namenjene ponovnemu vklopu glavnih zaščitnih naprav (MPD), kot so odklopniki, skladni s standardom IEC 60898-1 in/ali IEC 60898-2, odklopniki na diferenčni tok, skladni s standardom IEC 61008-1, in odklopniki na diferenčni tok z nadtokovno zaščito, skladni s standardom IEC 61009-1 in/ali IEC 62423, po njihovem izklopu, da se znova vzpostavi neprekinjeno delovanje.
Ta dokument zajema naslednje vrste naprav za avtomatski ponovni vklop:
− naprave za avtomatski ponovni vklop z možnostjo ocene, ki napravo znova vklopijo le, če pričakovani linijski tok in pričakovani zemeljskostični tok ne presegata navedenih vrednosti;
– naprave za avtomatski ponovni vklop z možnostjo ocene, ki napravo znova vklopijo le, če pričakovani linijski tok ne presega navedene vrednosti;
– naprave za avtomatski ponovni vklop z možnostjo ocene, ki napravo znova vklopijo le, če pričakovani zemeljskostični tok ne presega določene vrednosti;
– naprave za avtomatski ponovni vklop, ki napravo znova vklopijo brez kakršne koli ocene.
OPOMBA 1: Pravila za vgradnjo definirajo pogoje uporabe posameznih izdelkov in tipov.
OPOMBA 2: Ocena ne more nadomestiti preverjanj, zahtevanih v standardu IEC 60364-6.
OPOMBA 3: Zahteve in preskusi za funkcijo ocenjevanja v sistemih IT se obravnavajo.
Ta dokument se ne uporablja za naprave za avtomatski ponovni vklop z več nastavitvami, ki jih lahko uporabnik nastavi med običajnim delovanjem.
Naprave, ki jih zajema ta dokument, morajo biti takšne, da jih lahko upravljajo nepoučene osebe, in ne smejo zahtevati vzdrževanja.

General Information

Status
Published
Publication Date
20-Aug-2018
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
08-May-2018
Due Date
13-Jul-2018
Completion Date
21-Aug-2018

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SLOVENSKI STANDARD
SIST EN 63024:2018
01-september-2018
1DGRPHãþD
SIST EN 50557:2012
Zahteve za naprave za avtomatski ponovni vklop (ARDs) odklopnikov, RCBOs in
RCCBs za gospodinjsko in podobno uporabo (IEC 63024:2017)

Requirements for automatic reclosing devices (ARDs) for circuit-breakers, RCBOs and

RCCBs for household and similar uses (IEC 63024:2017)
Anforderungen an automatische Wiedereinschalteinrichtungen für
Leitungsschutzschalter, RCBOs, RCCBs für Hausinstallationen und ähnliche Zwecke
(IEC 63024:2017)

Exigences pour les dispositifs à refermeture automatique (DRA) pour disjoncteurs, ID et

DD, pour usages domestiques et analogues (IEC 63024:2017)
Ta slovenski standard je istoveten z: EN 63024:2018
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
SIST EN 63024:2018 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 63024:2018
---------------------- Page: 2 ----------------------
SIST EN 63024:2018
EUROPEAN STANDARD EN 63024
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2018
ICS 29.120.50 Supersedes EN 50557:2011
English Version
Requirements for automatic reclosing devices (ARDs) for circuit-
breakers, RCBOs and RCCBs for household and similar uses
(IEC 63024:2017)

Exigences pour les dispositifs à refermeture automatique Anforderungen an automatische

(DRA) pour disjoncteurs, ID et DD, pour usages Wiedereinschalteinrichtungen für Leitungsschutzschalter,

domestiques et analogues RCBOs, RCCBs für Hausinstallationen und ähnliche
(IEC 63024:2017) Zwecke
(IEC 63024:2017)

This European Standard was approved by CENELEC on 2018-01-17. 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 CEN-CENELEC

Management Centre 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 CEN-CENELEC Management Centre 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 63024:2018 E
---------------------- Page: 3 ----------------------
SIST EN 63024:2018
EN 63024:2018 (E)
European foreword

The text of document 23E/1037/FDIS, future edition 1 of IEC 63024, prepared by IEC/SC 23E "Circuit-

breakers and similar equipment for household use" of IEC/TC 23 "Electrical accessories" was submitted to

the IEC-CENELEC parallel vote and approved by CENELEC as EN 63024:2018.

A draft amendment, which covers common modifications to IEC 63024 (23E/1037/FDIS), was prepared by

CLC/TC 23E "Circuit breakers and similar devices for household and similar applications" and approved by

CENELEC.
The following dates are fixed:
• latest date by which this document has to (dop) 2019-01-17
be implemented at national level by
publication of an identical national
standard or by endorsement
latest date by which the national (dow) 2021-01-17
standards conflicting with this document
have to be withdrawn
This document supersedes EN 50557:2011.

Clauses, subclauses, notes, tables, figures and annexes which are additional to those in IEC 63024:2017

are prefixed “Z”.

This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for

Use within Certain Voltage Limits (LVD - 2014/35/EU).

This document has been prepared under a mandate given to CENELEC by the European Commission and

the European Free Trade Association, and supports essential requirements of EU Directive(s).

For the relationship with EU Directive(s) see informative Annex ZZA and Annex ZZB, which are integral parts

of this document.
Endorsement notice

The text of the International Standard IEC 63024:2017 was approved by CENELEC as a European

Standard with agreed common modifications.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60085 NOTE Harmonized as EN 60085.
IEC 60112:2003 NOTE Harmonized as EN 60112:2003 (not modified).

IEC 60112:2003/AMD1:2009 NOTE Harmonized as EN 60112:2003/A1:2009 (not modified).

IEC 60364-6:2006 NOTE Harmonized as HD 60364-6:2007 (modified).
IEC 60384-14:2013 NOTE Harmonized as EN 60384-14:2013 (not modified).
IEC 60695-2-10:2013 NOTE Harmonized as EN 60695-2-10:2013 (not modified).
IEC 60998-2-3 NOTE Harmonized as EN 60998-2-3.
IEC 61000-3-2 NOTE Harmonized as EN 61000-3-2.
IEC 61000-3-3 NOTE Harmonized as EN 61000-3-3.
IEC 62423 NOTE Harmonized as EN 62423
---------------------- Page: 4 ----------------------
SIST EN 63024:2018
EN 63024:2018 (E)
ISO 306 NOTE Harmonized as EN ISO 306.
Common modifications
4 Classification
Add a new subclause after 4.7:

4.Z1 According to the range of ambient air temperature (only for ARD according to 4.2.2 and 4.2.3)

4.Z1.1 ARD for use at ambient air temperatures between -5 °C and +40 °C;
4.Z1.2 ARD for use at ambient air temperatures between -25 °C and +40 °C.
6 Marking and other product information
6.1 Standard marking
Add the following new item:

p) for ARD classified according to 4.Z1.2, ambient air temperature with the symbol (the value -25 included in

the snow flake symbol according to ISO 7000:2014, Figure 0027). For devices according to 4.1.2, the

information of the ambient air temperature shall not be visible after assembly.
8 Requirements for construction and operation
8.1 Mechanical design
8.1.1 General
Add at the end of the subclause the following new text:

“ARD shall be assembled only with main MPDs having a higher or equal range of ambient air temperature

(see 4.Z1).”
Add a new subclause after 8.15:
8.Z1 Behaviour at low ambient air temperature

ARD classified according to 4.2.2 and 4.2.3 for use in the range of -25 °C to +40 °C shall operate reliably at

low temperatures.
For the ARD+MPD, the relevant subclauses of the MPD standard applies:
a) EN 61008-1:2004, 8.Z1, for ARD classified according to 4.2.2 (RCCBs);
b) EN 61009-1:2004, 8.Z1, for ARD classified according to 4.2.3 (RCBOs).
Compliance is checked by the test of 9.18.
9 Tests
9.18 Verification of the operating characteristics

9.18.3 Verification of the reclosing subordinated to the measurements of the resistance between

live parts
Add at the end of Subclause 9.18.3 the following new text:

RCDs classified in according with 4.Z1.2 shall also perform the test with an ambient temperature

of (-25 ± 2) °C.
---------------------- Page: 5 ----------------------
SIST EN 63024:2018
EN 63024:2018 (E)
9.22.5 Electromagnetic emission of ARDs
Add at the end of the clause the following text:

The text on the statistical evaluation of mass produced products in Clause 7 of CISPR 14-1 does not apply.

---------------------- Page: 6 ----------------------
SIST EN 63024:2018
EN 63024:2018 (E)
Table D.1 – Test sequences
Add a new row at the end of to the table as follows:
6.1 p) Verification of the correct operation at low ambient air temperatures
for RCCBs for use at temperatures between -25 °C and +40 °C
9.18.3
(last
paragraph)
Add the following annexes:

Annex ZA (normative) Normative references to international publications with their corresponding European

publications

Annex ZZA (informative) Relationship between this European standard and the essential requirements of

Directive 2014/30/EU [2014 OJ L96] aimed to be covered

Annex ZZB (informative) Relationship between this European standard and the safety objectives of Directive

2014/35/EU [2014 OJ L96] aimed to be covered
---------------------- Page: 7 ----------------------
SIST EN 63024:2018
EN 63024:2018 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD

applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year

IEC 60065 (mod) 2014 Audio, video and similar electronic apparatus EN 60065 2014

- Safety requirements
IEC 60384 Series Fixed capacitors for use in electronic EN 60384 Series
equipment - Part 9: Sectional specification:
Fixed capacitors of ceramic dielectric, Class 2
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 - Insulation coordination for equipment within EN 60664-3 2017
low-voltage systems - Part 3: Use of coating,
potting or moulding for protection against
pollution
IEC 60898-1 2015 Electrical accessories - Circuit-breakers for - -
overcurrent protection for household and
similar installations - Part 1: Circuit-breakers
for a.c. operation
IEC 60898-2 2016 Circuit-breakers for overcurrent protection for - -
household and similar installations -
Part 2: Circuit-breakers for a.c. and d.c.
operation
IEC 60947-5-1 - Low-voltage switchgear and controlgear - EN 60947-5-1 2016
Part 5-1: Control circuit devices and switching
elements - Electromechanical control circuit
devices
IEC 60950-1 (mod) - Information technology equipment - Safety - EN 60950-1 2006
Part 1: General requirements
IEC 61000-4-2 - Electromagnetic compatibility (EMC) - EN 61000-4-2 2009
Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity
test
IEC 61000-4-3 - Electromagnetic compatibility (EMC) - EN 61000-4-3 2006
Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test
---------------------- Page: 8 ----------------------
SIST EN 63024:2018
EN 63024:2018 (E)
Publication Year Title EN/HD Year
IEC 61000-4-4 - Electromagnetic compatibility (EMC) - EN 61000-4-4 2012
Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst
immunity test
IEC 61000-4-5 - Electromagnetic compatibility (EMC) - EN 61000-4-5 2014
Part 4-5: Testing and measurement
techniques - Surge immunity test
IEC 61000-4-6 - Electromagnetic compatibility (EMC) - EN 61000-4-6 2014
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields
IEC 61000-4-16 - Electromagnetic compatibility (EMC) - EN 61000-4-16 2016
Part 4-16: Testing and measurement
techniques - Test for immunity to conducted,
common mode disturbances in the frequency
range 0 Hz to 150 kHz

IEC 61008-1 (mod) 2010 Residual current operated circuit-breakers EN 61008-1 2012

without integral overcurrent protection for
household and similar uses (RCCB's) -
Part 1: General rules
+A1 (mod) +A1 2014
2012
+A2 (mod) 2013 +A2 2014

IEC 61009-1 (mod) 2010 Residual current operated circuit-breakers EN 61009-1 2012

with integral overcurrent protection for
household and similar uses (RCBOs) -
Part 1: General rules
+A1 (mod) 2012 +A1 2014
+A2 (mod) 2013 +A2 2014
IEC 61189-2 - Test methods for electrical materials, printed EN 61189-2 2006
boards and other interconnection structures
and assemblies - Part 2: Test methods for
materials for interconnection structures
IEC 61543 1995 Residual current-operated protective devices EN 61543 1995
(RCDs) for household and similar use -
Electromagnetic compatibility
+A1 2004 + A11 2003
+A2 2005 +A2 2006
IEC 61558 Series Safety of transformers, reactors, power EN 61558 Series
supply units and combinations thereof
IEC 62019 - Electrical accessories - Circuit-breakers and EN 62019 1999
similar equipment for household use -
Auxiliary contact units
CISPR 14-1 - Electromagnetic compatibility - Requirements EN 55014-1 2017
for household appliances, electric tools and
similar apparatus - Part 1: Emission
ISO 7000 2014 Graphical symbols for use on equipment - - -
Registered symbols
---------------------- Page: 9 ----------------------
SIST EN 63024:2018
EN 63024:2018 (E)
Annex ZZA
(informative)
Relationship between this European standard and the essential requirements of
Directive 2014/30/EU [2014 OJ L96] aimed to be covered

This European standard has been prepared under the European Commission standardisation request

C(2016) 7641 final of 30.11.2016 , ('M/552'), as regards harmonised standards in support of Directive

2014/30/EU relating to electromagnetic compatibility, to provide one voluntary means of conforming to

essential requirements of Directive 2014/30/EU of the European Parliament and of the Council of 26

February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic

compatibility [2014 OJ L96].

Once this standard is cited in the Official Journal of the European Union under that Directive, compliance

with the normative clauses of this standard given in Table ZZA.1 confers, within the limits of the scope of this

standard, a presumption of conformity with the corresponding essential requirements of that Directive, and

associated EFTA regulations.

Table ZZA.1 – Correspondence between this European standard and the Essential Requirements set

out in Directive 2014/30/EU [2014 OJ L96]
Essential requirements of Clause(s) / sub-clause(s)
Remarks / Notes
Directive 2014/30/EU of this EN
Annex I. 1(a) (electromagnetic 9.22.5 For CISPR 14-1, the text on the
disturbances)
statistical evaluation of mass
produced products in Clause 7
does not apply.
Annex I. 1(b) (electromagnetic 8.15-9.22
immunity)

WARNING 1: Presumption of conformity stays valid only as long as a reference to this European standard is

maintained in the list published in the Official Journal of the European Union. Users of this standard should

consult frequently the latest list published in the Official Journal of the European Union.

WARNING 2: Other Union legislation may be applicable to the product(s) falling within the scope of this

standard.

COMMISSION IMPLEMENTING DECISION C(2016) 7641 final of 30.11.2016 on a standardisation request to the European

Committee for Standardisation, to the European Committee for Electrotechnical Standardisation and to the European

Telecommunications Standards Institute as regards harmonised standards in support of Directive 2014/30/EU of the European

Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to

electromagnetic compatibility.
---------------------- Page: 10 ----------------------
SIST EN 63024:2018
EN 63024:2018 (E)
Annex ZZB
(informative)

Relationship between this European standard and the safety objectives of Directive

2014/35/EU [2014 OJ L96] aimed to be covered

This European Standard has been prepared under a Commission’s standardization request relating to

harmonized standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means of

conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the Council of 26

February 2014 on the harmonization of the laws of the Member States relating to the making available on the

market of electrical equipment designed for use within certain voltage limits [2014 OJ L96].

Once this standard is cited in the Official Journal of the European Union under that Directive, compliance

with the normative clauses of this standard given in Table ZZB.1 confers, within the limits of the scope of this

standard, a presumption of conformity with the corresponding essential requirements of that Directive, and

associated EFTA regulations.

Table ZZB.1 – Correspondence between this European standard and Article 3 of Directive 2014/35/EU

[2014 OJ L153]
Clause(s) / sub-clause(s)
Safety Objectives of Directive
Remarks / Notes
of this EN
2014/35/EU
(1)(a)
1, 2, 3, 4, 5, 6 - 9.4
(1)(b)
6.2, 8.1.1, 8.1.2.1, 8.1.2.2 and
9.5.1
(1)(c)
7, 8.1.2.8, 8.10, 8.11, 8.15, 9.5.2,
9.5.4, 9.7.4, 9.13, 9.18.1, 9.18.2,
9.18.3, 9.19.1, 9.19.2 and 9.22
(2) (a)
8.2, 8.5, 9.3, 8.10.8, 8.11, 8.13,
8.14, 9.1, 9.7.4, 9.13, 9.18.4,
9.19.1, 9.19.2, 9.20 and 9.21
(2) (b)
8.1.5, 8.1.6, 8.4, 9.8, 9.9 and
9.12
(2) (c)
8.1.2.3, 8.1.2.4, 8.1.2.5, 9.5.2
and 9.5.3
(2) (d)
8.1.3, 8.1.4, 8.3, 9.6, 9.7 and
9.11
(3) (a)
8.7 - 9.15
(3) (b)
8.8, 8.9, 8.15, 9.16, 9.17 and
9.22
(3) (c)
8.6, 8.12, 9.14 and 9.17

WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European standard

is maintained in the list published in the Official Journal of the European Union. Users of this standard should

consult frequently the latest list published in the Official Journal of the European Union.

WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of this

standard.
---------------------- Page: 11 ----------------------
SIST EN 63024:2018
---------------------- Page: 12 ----------------------
SIST EN 63024:2018
IEC 63024
Edition 1.0 2017-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Requirements for automatic reclosing devices (ARDs) for circuit-breakers,
RCBOs and RCCBs for household and similar uses
Exigences pour les dispositifs à refermeture automatique (DRA) pour
disjoncteurs, ID et DD, pour usages domestiques et analogues
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-5132-4

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 13 ----------------------
SIST EN 63024:2018
– 2 – IEC 63024:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 6

INTRODUCTION ..................................................................................................................... 8

1 Scope .............................................................................................................................. 9

2 Normative references ...................................................................................................... 9

3 Terms and definitions .................................................................................................... 11

4 Classification ................................................................................................................. 13

4.1 According to the method of construction ............................................................... 13

4.2 According to the associated MPD .......................................................................... 13

4.3 According to the type of assessment means ........................................................... 13

4.4 According to the safety means during the assessment ............................................ 14

4.5 According to the connection to FE ......................................................................... 14

4.6 According to maximum number of reclosing operations .......................................... 14

4.7 According to mechanical interlock between MPD operating means and ARD

enabling/disabling system ...................................................................................... 14

5 Characteristics .............................................................................................................. 14

5.1 Summary of characteristics ................................................................................... 14

5.2 Rated quantities .................................................................................................... 14

5.2.1 Rated voltage ................................................................................................ 14

5.2.2 Rated operational voltage (U ) ....................................................................... 15

5.2.3 Rated frequency ............................................................................................. 15

5.2.4 Rated non-operating resistance to earth (R ) ................................................ 15

5.2.5 Rated operating resistance to earth (R ) ........................................................ 15

5.2.6 Rated non-operating resistance between live parts (R ) ............................. 15

cc0

5.2.7 Rated operating resistance between live parts (R ) ....................................... 16

6 Marking and other product information ........................................................................... 16

6.1 Standard marking .................................................................................................. 16

6.2 Instructions for assembly and operation ................................................................. 17

7 Standard conditions for operation in service .................................................................... 18

7.1 General ................................................................................................................. 18

7.2 Conditions of installation ....................................................................................... 18

7.3 Pollution degree .................................................................................................... 18

8 Requirements for construction and operation ................................................................. 18

8.1 Mechanical design ................................................................................................ 18

8.1.1 General ......................................................................................................... 18

8.1.2 Mechanism .................................................................................................... 19

8.1.3 Clearances and creepage distances .............................................................. 20

8.1.4 Clearances and creepage distances for electronic circuits connected

between live parts or between live parts and the earth ................................... 20

8.1.5 Screws, current-carrying parts and connections .............................................. 22

8.1.6 Terminals for external conductors .................................................................. 22

8.2 Protection against electric shock............................................................................ 22

8.3 Dielectric properties and isolating capability ........................................................... 23

8.4 Temperature rise ................................................................................................... 23

8.5 Mechanical and electrical endurance ..................................................................... 23

8.6 Performance at short-circuit currents ..................................................................... 23

8.7 Resistance to mechanical shock and impact........................................................... 23

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SIST EN 63024:2018
IEC 63024:2017 © IEC 2017 – 3 –

8.8 Resistance to heat................................................................................................. 23

8.9 Resistance to abnormal heat and to fire ................................................................. 24

8.10 Operating characteristics ....................................................................................... 24

8.11 Assessment means for ARD according to 4.3.2 ....................................................... 25

8.11.1 General ......................................................................................................... 25

8.11.2 Assessment means operating by limitation of the test voltage ......................... 25

8.11.3 Assessment means operating by limitation of the test current ......................... 25

8.12 Safety in blocked condition .................................................................................... 26

8.13 Test device ........................................................................................................... 26

8.14 Ageing .................................................................................................................. 26

8.15 Electromagnetic compatibility (EMC)...................................................................... 26

9 Tests ............................................................................................................................. 26

9.1 General ................................................................................................................. 26

9.2 Test condition ....................................................................................................... 26

9.3 Measurement of the reclosing time after the tripping of the MPD ............................. 27

9.4 Test of indelibility of marking ................................................................................. 27

9.5 Verification of the non-influence of the ARD on the correct operation of the

MPD ..................................................................................................................... 27

9.5.1 Verification of the operating characteristics of the MPD ................................. 27

9.5.2 Verification of the impossibility of the activation of the ARD when the

MPD has been manually opened .................................................................... 28

9.5.3 Verification of the enabling/disabling system of the ARD................................ 28

9.5.4 Verification of the maximum number of consecutive reclosings ...................... 28

9.6 Tests of creepage distances and clearances for electronic circuits (abnormal

conditions) ............................................................................................................ 29

9.7 Requirements for capacitors, specific resistors and inductors used in

electronic circuits .................................................................................................. 32

9.7.1 General ......................................................................................................... 32

9.7.2 Capacitors ..................................................................................................... 32

9.7.3 Resistors ....................................................................................................... 32

9.7.4 Inductors and windings ................................................................................... 33

9.8 Test of reliability of screws, current-carrying parts and connections ...................... 33

9.9 Test of reliability of terminals for external conductors ............................................ 33

9.10 Verification of protection against electric shock ..................................................... 33

9.11 Test of dielectric properties and isolating capability .............................................. 33

9.12 Temperature rise .................................................................................................. 34

9.13 Verification of the mechanical and electrical endurance – Verification of the

reclosing system of the ARD ................................................................................. 34

9.13.1 General test conditions .................................................................................. 34

9.13.2 Test procedure .............................................................................................. 34

9.13.3 Condition of the ARD after the test ................................................................ 34

9.14 Short-circuit test ................................................................................................... 35

9.14.1 General conditions for short-circuit test.....
...

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