Low-voltage switchgear and controlgear - Part 5-5: Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function EN (60947-5-5:1997/A2:2017)

2017-05-02: D156/C084 - Ratified standards not being made available.
DOP = DAV + 6 months
DOW = DAV + 36 months
Annex ZZ for MD 2006/42/EC available in EN 60947-5-5:1997/A11.

Niederspannungsschaltgeräte - Teil 5-5: Steuergeräte und Schaltelemente - Elektrisches Not-Halt-Gerät mit mechanischer Verrastfunktion

Appareillage à basse tension - Partie 5-5: Appareils et éléments de commutation pour circuits de commande - Appareil d'arrêt d'urgence électrique à accrochage mécanique (60947-5-5:1997/A2:2017)

Nizkonapetostne stikalne in krmilne naprave - 5-5. del: Krmilne naprave in stikalni elementi - Električna (varnostna) naprava za zaustavitev v sili z mehansko zaporo (EN 60947-5-5:1997/A2:2017) - Dopolnilo A2

General Information

Status
Published
Publication Date
07-Mar-2017
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
03-Jun-2016
Due Date
08-Aug-2016
Completion Date
08-Mar-2017

Relations

Overview

EN 60947-5-5:1997/A2:2017 (IEC 60947-5-5:1997/A2:2016) is a CENELEC amendment covering electrical emergency stop devices with mechanical latching function used in low-voltage switchgear and controlgear. It updates definitions, colour/symbol requirements, contact action rules and normative references, and is intended to support conformity with EU safety directives (see Annex ZZ). The amendment was approved in 2016 and published as EN A2 in 2017.

Key topics and requirements

  • Scope: Special requirements for emergency stop pushbuttons with mechanical latching; other relevant requirements are referenced to EN/IEC 60947-1 and EN/IEC 60947-5-1.
  • Colour and symbol:
    • Actuators (buttons) shall be red; background, if present, yellow.
    • Use graphical symbol IEC 60417-5638 for emergency stop where needed.
  • Contact action:
    • All normally closed contact elements of an emergency stop device must have a direct opening action (formerly called “positive opening action”) as defined and tested in Annex K of IEC 60947-5-1:2016.
  • Definitions updated: Terms such as emergency stop device, actuator, actuating system, rest/actuated position, resetting and direct opening action are clarified or revised.
  • Testing & environmental references: Normative references updated to modern environmental tests (IEC 60068 series), IEC 60947-1 and IEC 60947-5-1, IEC 61310-1 and ISO 13850:2015 (emergency stop principles).
  • Noise: Amendment explicitly states it does not address noise emission of these devices (not considered a relevant hazard).
  • Regulatory linkage: Annex ZZ explains the relationship to Directive 2014/35/EU (Low Voltage Directive) and notes presumption of conformity when the standard is cited in the Official Journal.

Applications

  • Safe design and specification of emergency stop pushbuttons and mechanically latching E‑stop assemblies in:
    • Industrial machinery and manufacturing lines
    • Control panels and operator stations
    • Mobile equipment and safety interlocks
  • Selection, testing and marking of devices by manufacturers, design engineers, machine builders, safety specialists, testing laboratories and notified bodies for compliance with low-voltage safety requirements.

Who should use this standard

  • Controlgear and switchgear manufacturers manufacturing E‑stop devices
  • Machine designers integrating emergency stop circuits
  • Safety engineers verifying functional safety and emergency stop behavior
  • Compliance officers seeking presumption of conformity with EU directives
  • Test laboratories performing type and environmental testing per IEC references

Related standards

  • EN/IEC 60947-1 (general rules for low-voltage switchgear)
  • EN/IEC 60947-5-1 (electromechanical control circuit devices)
  • ISO 13850 / EN ISO 13850 (Emergency stop - principles for design)
  • IEC 60068 series (environmental testing)
  • IEC 61310-1 (indication, marking, actuation)

Keywords: EN 60947-5-5, electrical emergency stop, mechanical latching, low-voltage switchgear, controlgear, direct opening action, ISO 13850, CENELEC, safety standard.

Amendment
SIST EN 60947-5-5:1999/A2:2017
English language
18 pages
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Frequently Asked Questions

SIST EN 60947-5-5:1999/A2:2017 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Low-voltage switchgear and controlgear - Part 5-5: Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function EN (60947-5-5:1997/A2:2017)". This standard covers: 2017-05-02: D156/C084 - Ratified standards not being made available. DOP = DAV + 6 months DOW = DAV + 36 months Annex ZZ for MD 2006/42/EC available in EN 60947-5-5:1997/A11.

2017-05-02: D156/C084 - Ratified standards not being made available. DOP = DAV + 6 months DOW = DAV + 36 months Annex ZZ for MD 2006/42/EC available in EN 60947-5-5:1997/A11.

SIST EN 60947-5-5:1999/A2:2017 is classified under the following ICS (International Classification for Standards) categories: 29.120.99 - Other electrical accessories; 29.130.20 - Low voltage switchgear and controlgear. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 60947-5-5:1999/A2:2017 has the following relationships with other standards: It is inter standard links to SIST EN 60947-5-5:1999, kSIST FprEN IEC 60947-5-5:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 60947-5-5:1999/A2:2017 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC, 2006/95/EC, 2014/30/EU, 2014/35/EU, 98/37/EC; Standardization Mandates: M/396, M/511. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

You can purchase SIST EN 60947-5-5:1999/A2:2017 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-maj-2017
1L]NRQDSHWRVWQHVWLNDOQHLQNUPLOQHQDSUDYHGHO.UPLOQHQDSUDYHLQVWLNDOQL
HOHPHQWL(OHNWULþQD YDUQRVWQD QDSUDYD]D]DXVWDYLWHYYVLOL]PHKDQVNR]DSRUR
(1$ 'RSROQLOR$
Low-voltage switchgear and controlgear - Part 5-5: Control circuit devices and switching
elements - Electrical emergency stop device with mechanical latching function EN
(60947-5-5:1997/A2:2017)
Appareillage à basse tension - Partie 5-5: Appareils et éléments de commutation pour
circuits de commande - Appareil d'arrêt d'urgence électrique à accrochage mécanique
(60947-5-5:1997/A2:2017)
Ta slovenski standard je istoveten z: EN 60947-5-5:1997/A2:2017
ICS:
29.120.99 'UXJDHOHNWULþQDGRGDWQD Other electrical accessories
RSUHPD
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60947-5-5:1997/A2

NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2017
ICS 29.120.99; 29.130.20
English Version
Low-voltage switchgear and controlgear -
Part 5-5: Control circuit devices and switching elements -
Electrical emergency stop device with mechanical latching
function
(IEC 60947-5-5:1997/A2:2016)
Appareillage à basse tension - Partie 5-5: Appareils et Niederspannungsschaltgeräte - Teil 5-5: Steuergeräte und
éléments de commutation pour circuits de commande - Schaltelemente - Elektrisches Not-Halt-Gerät mit
Appareil d'arrêt d'urgence électrique à accrochage mechanischer Verrastfunktion
mécanique (IEC 60947-5-5:1997/A2:2016)
(IEC 60947-5-5:1997/A2:2016)
This amendment A2 modifies the European Standard EN 60947-5-5:1997; it was approved by CENELEC on 2016-04-04. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60947-5-5:1997/A2:2017 E

European foreword
The text of document 121A/60/FDIS, future IEC 60947-5-5:1997/A2, prepared by
SC 121A “Low-voltage switchgear and controlgear” of IEC/TC 121 “Switchgear and controlgear and
their assemblies for low voltage" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 60947-5-5:1997/A2:2017.

The following dates are fixed:
• latest date by which the document has to be (dop) 2017-08-24
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2020-02-24
• latest date by which the national
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
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 Directives.

For the relationship with EU Directive see informative Annex ZZ, which is integral part of this
document.
Endorsement notice
The text of the International Standard IEC 60947-5-5:1997/A2:2016 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 60068-2-75 NOTE Harmonized as EN 60068-2-75.
IEC 60073:2002 NOTE Harmonized as EN 60073:2002 (not modified).
IEC 60204-1:2005 NOTE Harmonized as EN 60204-1:2006 (modified).
IEC 60204-1:2005/A1:2008 NOTE Harmonized as EN 60204-1:2006/A1:2009 (not modified).
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When 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
Annex ZA of EN 60947-5-5:1997 applies, except as follows:

Publication Year Title EN/HD Year
Delete, from the existing list, the references to IEC 60073:1996, modified by A1, to ISO 3864 and
to IEC 60204-1:
Replace the existing reference to IEC 60068-2-1, modified by A1 by the following new
reference:
IEC 60068-2-1 2007 Environmental testing - EN 60068-2-1 2007
Part 2-1: Tests - Test A: Cold
Replace the existing references to IEC 60068-2-2, modified by A1, IEC 60068-2-6,
IEC 60068-2-27, IEC 60068-2-30, IEC 60947-1, modified by A1, IEC 60947-5-1, IEC 61310-1 and
ISO 13850 by the following new references:
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 60068-2-30 2005 Environmental testing - EN 60068-2-30 2005
Part 2-30: Tests - Test Db: Damp heat,
cyclic (12 h + 12 h cycle)
IEC 60947-1 2007 Low-voltage switchgear and controlgear - EN 60947-1 2007
Part 1: General rules
+A1 2010 +A1 2011
+A2 2014 +A2 2014
1)
IEC 60947-5-1 2016 Low-voltage switchgear and controlgear - EN 60947-5-1 201X
Part 5-1: Control circuit devices and
switching elements - Electromechanical
control circuit devices
1)
To be published.
Publication Year Title EN/HD Year
IEC 61310-1 2007 Safety of machinery - Indication, marking EN 61310-1 2008
and actuation -
Part 1: Requirements for visual, acoustic
and tactile signals
ISO 13850 2015 Safety of machinery - Emergency stop EN ISO 13850 2015
function - Principles for design
Add the following new reference:
IEC 60417-DB 2002 Graphical symbols for use on equipment - -
Annex ZZ
(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 standardisation request relating to
harmonised 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 harmonisation 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 ZZ.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding safety objectives of
that Directive, and associated EFTA regulations.

Table ZZ.1 – Correspondence between this European standard and Annex I of
Directive 2014/35/EU [2014 OJ L96]

Safety objectives of Clause(s) / sub-clause(s) of Remarks/note
Directive 2014/35/EU this EN
1 a) Foreword, 4
1 b) Foreword, 4
1 c) - Not relevant.
2 a) Foreword, 5.2, 5.3, 5.4, 7.7
2 b) Foreword, 5.2, 5.4, 7.4
2 c) Foreword, 4.2, 5.4, 6.4, 7.2, 7.3,
7.5, 7.6, 7.7, Annex A
2 d) Foreword, 5.2, 5.4, 6.4, 7.4, 7.7
3 a) Foreword, 5.2, 5.4, 6.4, 7.2, 7.3,
7.4, 7.5, 7.6, 7.7
3 b) - No hazard identified for products
falling under the scope of this
standard.
3 c) Foreword, 6.4, 7.4, 7.7
Only special requirements for emergency stop pushbuttons with latching function are covered by this
standard. All other relevant requirements are given in EN 60947-1 and EN 60947-5-1 as described in
the foreword.
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.
IEC 60947-5-5 ®
Edition 1.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 2
AM ENDEMENT 2
Low-voltage switchgear and controlgear –

Part 5-5: Control circuit devices and switching elements – Electrical emergency

stop device with mechanical latching function

Appareillage à basse tension –

Partie 5-5: Appareils et éléments de commutation pour circuits de commande –

Appareil d'arrêt d'urgence électrique à accrochage mécanique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.99, 29.130.20 ISBN 978-2-8322-3183-8

– 2 – IEC 60947-5-5:1997/AMD2:2016
© IEC 2016
FOREWORD
This amendment has been prepared by subcommittee SC 121A: Low-voltage switchgear and
controlgear, of IEC technical committee 121: Switchgear and controlgear and their
assemblies for low voltage.
The text of this amendment is based on the following documents:
FDIS Report of voting
121A/60/FDIS 121A/72/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website 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.
_____________
1 Scope
th
Delete, in the existing 4 paragraph “(see annex A)”.
th
Add, after the existing 4 paragraph, the following new paragraph and note:
This standard does not deal with any specific requirements on noise as the noise emission of
electrical emergency stop devices with mechanical latching function is not considered to be a
relevant hazard.
NOTE See also 9.2.5.4 of IEC 60204-1:2005.
2 Normative references
Delete, from the existing list, the references to IEC 60073:1996, modified by Amendment 1,
to ISO 3864 and IEC 60204-1.
Replace the existing reference to IEC 60068-2-1, modified by Amendment 1, by the following
new reference:
IEC 60068-2-1:2007, Environmental testing − Part 2-1: Tests − Test A: Cold
Replace the existing references to IEC 60068-2-2 modified by Amendment 1, IEC 60068-2-6,
IEC 60068-2-27, IEC 60068-2-30, IEC 60947-1 modified by Amendment 1, IEC 60947-5-1,
IEC 61310-1, and ISO 13850 by the following new references:
IEC 60068-2-2:2007, Environmental testing – Part 2-2: Tests – Test B: Dry heat

IEC 60947-5-5:1997/AMD2:2016 – 3 –
© IEC 2016
IEC 60068-2-6:2007, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-27:2008, Environmental testing – Part 2-27: Tests – Test Ea and guidance:
Shock
IEC 60068-2-30:2005, Environmental testing – Part 2-30: Tests – Test Db: Damp heat, cyclic
(12 h + 12 h cycle)
IEC 60947-1:2007, Low-voltage switchgear and controlgear – Part 1: General rules
IEC 60947-1:2007/AMD1:2010
IEC 60947-1:2007/AMD2:2014
IEC 60947-5-1:2016, Low-voltage switchgear and controlgear – Part 5-1: Control circuit
devices and switching elements – Electromechanical control circuit devices
IEC 61310-1:2007, Safety of machinery – Indication, marking and actuation – Part 1:
Requirements for visual, acoustic and tactile signals
ISO 13850:2015, Safety of machinery – Emergency stop function – Principles for design
Add the following new reference to the existing list:
IEC 60417-DB:2002 , Graphical symbols for use on equipment
3 Definitions
Replace the existing item under “D” modified by Amendment 1 by the following new item:
D
Direct opening action (of a contact element) . 3.9
Add the following new item under new ”P”:
P
Positive opening action (of a contact element) . 3.9
3.1
emergency stop (function or signal)
Replace the existing source by the following new source:
[ISO 13850:2015, definition 3.1, modified – extended to “emergency stop signal”, no use of E-
stop]
3.2
emergency stop device
Replace the existing definition and source by the following new definition, without modifying
the existing note:
manually operated control circuit device used to initiate an emergency stop function
_____________
“DB” refers to the IEC on-line database, available at: http://www.graphical-symbols.info/equipment.

– 4 – IEC 60947-5-5:1997/AMD2:2016
© IEC 2016
3.3
actuating system (of an emergency stop device)
Replace the existing definition and source by the following new definition and source:
mechanical parts which transmit the actuating force to the contact elements
[IEC 60050-441:1984, 441-15-21, modified – restricted to electromechanical emergency stop
devices; the note is not relevant anymore]
3.4
actuator (of an emergency stop device)
Replace the existing definition and source by the following new definition and source, without
modifying the existing note:
part of the actuating system which is actuated by a part of the human body
[IEC 60050-441:1984, 441-15-22, modified – actuation is intented to be achieved by human
only]
3.5
rest position
Replace the existing definition
...

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SIST EN 60947-5-5:1999/A2:2017は、低電圧スイッチギアおよび制御装置に関する標準の一部であり、特に制御回路デバイスやスイッチング要素に関する規定を示しています。この標準は、電気的緊急停止装置に対する機械的ロッチ機能に焦点を当てています。標準の範囲は非常に明確で、特に安全性が求められる産業用機器や設備において、重要な役割を果たしています。 この標準の強みは、その明快な構造と詳細な指示にあります。緊急停止装置の設計と使用に関する具体的な要求事項が定められており、製造業者やエンジニアはこの情報を基に安全かつ効果的な製品を開発することができます。また、機械的ロッチ機能が強調されていることで、操作ミスによる事故を未然に防ぐ工夫がなされています。このように、SIST EN 60947-5-5の適用は、製品の安全性と信頼性を高めるための重要な手段となります。 さらに、標準はEUの機械指令2006/42/ECと関連しており、産業界で広く受け入れられる基準となっています。これは、EU内での製品流通においても重要な要素であり、各国の規制に適合するための指針を提供します。このように、SIST EN 60947-5-5:1999/A2:2017は、国際標準に基づいた信頼性の高い製品設計や製造を促進し、さまざまな産業における安全な操作をサポートしています。

SIST EN 60947-5-5:1999/A2:2017 표준은 저전압 스위치기어 및 제어기어의 중요한 구성 요소로서, 특히 전기 긴급 정지 장치의 기계적 래칭 기능에 대한 규정을 제공합니다. 이 표준은 제어 회로 장치와 스위칭 요소의 안전성을 높이기 위한 명확한 지침을 제시하며, 전기적 시스템의 위험을 최소화하고, 사용자의 안전을 최우선으로 고려하는 데 중점을 두고 있습니다. 이 표준의 강점 중 하나는 전기 긴급 정지 장치의 설계와 설치에 필요한 구체적인 요구 사항을 세세하게 기술하고 있다는 것입니다. 이는 안전성 뿐만 아니라 장비의 신뢰성을 보장하며, 산업 내에서 표준의 일관성을 유지하는 데 기여합니다. 또한, EN 60947-5-5:1997/A11의 부록 ZZ는 2006/42/EC 기계 지침과 관련된 내용으로, 해당 법규에 적합한 제품을 개발하는 데 있어 중요한 참고 자료를 제공합니다. SIST EN 60947-5-5:1999/A2:2017은 최신화된 기준을 반영하여 2017년 5월에 수정된 점도 주목할 만합니다. 이는 전기 긴급 정지 장치의 기계적 래칭 기능을 사용하는 데 있어 최신 기술 동향과 관련 법규를 준수할 수 있도록 도움을 줍니다. 표준의 범위는 긴급 상황에서 장치를 신속하게 정지시키는 방법을 분명히 하여, 산업 현장에서의 사고를 예방하는 데 중요한 역할을 합니다. 이 표준은 관련 산업에서의 경쟁력 있는 생산성을 유지하고, 안전성을 확보하는 데 필수적이며, 기술 발전과 법적 요구 사항이 결합된 결과물로써 그 중요성이 더욱 강조됩니다. 시스템의 설계자와 엔지니어에게 유용한 가이드라인을 제공하여, 보다 안전하고 신뢰할 수 있는 전기 시스템을 구축하는 데 기여할 것입니다.

Die Norm SIST EN 60947-5-5:1999/A2:2017 behandelt wesentliche Aspekte von Niederspannungs-Schaltgeräten und Steuergeräten, insbesondere im Hinblick auf elektrische Not-Aus-Geräte mit mechanischer Verriegelungsfunktion. Der Umfang dieser Norm ist klar definiert und stellt sicher, dass die Anforderungen an die Sicherheit und Zuverlässigkeit solcher Geräte eingehalten werden. Der standardisierte Ansatz bietet einen wertvollen Rahmen für die Entwicklung und Erprobung der erforderlichen Sicherheitsvorrichtungen. Ein wesentliches Merkmal dieser Norm ist die Stärkung der Sicherheitsstandards in industriellen und gewerblichen Anwendungen. Durch die Einführung mechanischer Verriegelungsfunktionen wird das Risiko unbeabsichtigter Aktivierungen signifikant reduziert, was den Benutzern eine höhere Sicherheit in kritischen Situationen bietet. Die normativen Vorgaben ermöglichen es Herstellern, Produkte zu entwickeln, die nicht nur regelkonform sind, sondern auch die Erwartungen der Endbenutzer hinsichtlich Sicherheit und Funktionalität übertreffen. Die Relevanz der Sist EN 60947-5-5:1999/A2:2017 erstreckt sich über verschiedene Branchen, die auf Niederspannungs-Schaltgeräte angewiesen sind, wie zum Beispiel die Automatisierungstechnik, die Maschinenbauindustrie und die Prozessindustrie. Diese Norm ist besonders wichtig, da sie die europäische Richtlinie für Maschinen 2006/42/EG anspricht und die Konformität mit den grundlegenden Sicherheitsanforderungen unterstützt. Ein weiterer Stärke dieser Norm ist die regelmäßig aktualisierte Annex ZZ, die die Verknüpfung der Norm mit anderen europäischen Vorgaben klärt. Diese Einbindung sorgt dafür, dass Anwender und Hersteller sich auf vertrauenswürdige und anerkannte Vorgaben verlassen können, was eine effiziente Implementierung und Erklärung der nächsten Schritte zur Einhaltung von Compliance erleichtert. Insgesamt ist die SIST EN 60947-5-5:1999/A2:2017 nicht nur ein entscheidendes Dokument für die Herstellung sicherer Niederspannungs-Schaltansätze, sondern spielt auch eine zentrale Rolle im Kontext der fortlaufenden Verbesserung und Standardisierung in der Branche.

The standard SIST EN 60947-5-5:1999/A2:2017 encompasses the requirements and guidelines for low-voltage switchgear and controlgear, specifically focusing on control circuit devices and switching elements that feature an electrical emergency stop device with a mechanical latching function. This standard serves to ensure safety in various electrical applications by providing a comprehensive framework for the design and implementation of emergency stop mechanisms. One of the primary strengths of this standard is its clear definition of safety criteria, which is critical in minimizing risks associated with machinery operation. The inclusion of a mechanical latching function ensures that once the emergency stop is activated, it remains in the stopped position, thereby adding an additional layer of safety for users and maintenance personnel. Furthermore, SIST EN 60947-5-5:1999/A2:2017 maintains relevance in today’s evolving technological landscape by aligning with the latest European directives, including the Machinery Directive 2006/42/EC. The availability of Annex ZZ that outlines the relationship with this directive indicates that the standard is crafted to assist manufacturers in achieving compliance with European safety requirements. Additionally, the standard's specifications and performance criteria provide a definitive approach to the design, installation, and maintenance of emergency stop devices. This results in enhanced operational efficiency and promotes a uniform understanding of safety measures among engineers and technicians in the field. In conclusion, the SIST EN 60947-5-5:1999/A2:2017 standard plays a vital role in the safety and operational integrity of low-voltage switchgear and controlgear applications by providing necessary guidelines and safety assurances for electrical emergency stop devices equipped with mechanical latching functions. Its alignment with current regulations and comprehensive focus on safety make it an essential reference in the field.

La norme SIST EN 60947-5-5:1999/A2:2017 aborde les dispositifs de commande et les éléments de commutation dans le cadre de l'équipement électrique basse tension, en mettant spécifiquement l'accent sur les dispositifs d'arrêt d'urgence électriques dotés d'une fonction de verrouillage mécanique. Elle se distingue par sa portée claire et précise, qui inclut les exigences essentielles pour la conception et la mise en œuvre de ces dispositifs critiques pour la sécurité. L'un des principaux atouts de cette norme est sa capacité à garantir la conformité avec les directives européennes, en particulier l'annexe ZZ qui se réfère à la directive 2006/42/CE sur les machines. Cela renforce la pertinence de la norme dans le contexte de la sécurité des machines et des installations industrielles, soulignant l'importance d'une approche harmonisée au sein de l'Union européenne. De plus, la norme fournit des spécifications techniques rigoureuses qui contribuent à la fiabilité et à la durabilité des dispositifs d'arrêt d'urgence. La fonction de verrouillage mécanique est cruciale dans des environnements industriels où la sécurité des opérateurs est primordiale. En intégrant des critères de performance testés et validés, la norme assure une mise en œuvre efficace des dispositifs de sécurité. En résumé, la norme SIST EN 60947-5-5:1999/A2:2017 est essentielle pour les fabricants et les utilisateurs d'équipements électriques basse tension, car elle non seulement réglemente les exigences techniques, mais aussi renforce la sécurité opérationnelle. Sa pertinence se reflète dans son intégration aux pratiques industrielles et aux normes de sécurité nécessaires pour garantir un environnement de travail sûr.