EN IEC 62061:2021/A2:2026
(Amendment)Safety of machinery - Functional safety of safety-related control systems
Sicherheit von Maschinen - Funktionale Sicherheit sicherheitsbezogener Steuerungssysteme
Sécurité des machines - Sécurité fonctionnelle des systèmes de commande relatifs à la sécurité
Varnost strojev - Funkcijska varnost nadzornih sistemov, povezanih z varnostjo
General Information
- Status
- Not Published
- Publication Date
- 18-Jun-2026
- Technical Committee
- CLC/TC 44X - Safety of machinery: electrotchnical aspects
- Current Stage
- 6055 - Ratification Completed (DOR) - Publishing
- Start Date
- 24-Apr-2026
- Completion Date
- 24-Apr-2026
Relations
- Effective Date
- 19-Mar-2024
Overview
EN IEC 62061:2021/A2:2026 is an amendment to the internationally recognized standard for functional safety of safety-related control systems in machinery. Developed by the International Electrotechnical Commission (IEC) and adopted by CENELEC (CLC), this standard focuses on enhancing the safety and reliability of electrotechnical control systems that contribute to the overall safety of industrial machinery. The amendment brings updates and clarifications to help ensure machinery risk reduction through robust control system design and diagnostics, supporting compliance with European directives and global best practices.
This document is particularly relevant for machinery manufacturers, system integrators, and organizations that design, build, or operate machinery requiring safety-related control systems.
Key Topics
- Functional safety in machinery: Guidance for the development and evaluation of safety functions performed by control systems.
- Amendments to diagnostics and fault handling: Revised requirements and clarifications for detecting and responding to dangerous failures in subsystems to maintain or achieve a safe state.
- Enhanced rules for diagnosing dangerous failures, including test rates and reaction times.
- Special provisions for isolating faulty subsystems, especially where stopping the machine immediately would increase other risks.
- Clearer requirements for restoring operation only after faults are rectified.
- Performance and testing: Simplified approaches for estimating probabilities of dangerous failures (PFH) and validating diagnostic functions according to required safety integrity levels (SIL).
- Subsystem design: Updated guidance on the use of well-tried components and their impact on hardware fault tolerance (HFT) and SIL achievement.
- Component references: Updated references for devices such as emergency stop devices and enabling switches, aligned with relevant product standards (e.g., IEC 60947-5-5, ISO 13850).
Applications
EN IEC 62061:2021/A2:2026 applies to a broad range of industrial and commercial machinery applications, particularly where automated control systems are essential for safety. Typical uses include:
- Manufacturing equipment: Automated assembly lines, robotic systems, and production machinery where functional safety of control systems is critical.
- Process industries: Machinery for chemical, pharmaceutical, or food processing that requires reliable safety functions to protect operators and equipment.
- Material handling systems: Conveyor systems, cranes, and automated warehouses needing safe control responses to faults or hazardous conditions.
- Machine retrofits and upgrades: When updating older equipment to current safety standards, the standard’s guidance supports systematic risk reduction.
By implementing the requirements and recommendations set out in EN IEC 62061:2021/A2:2026, organizations can demonstrate compliance with machinery safety regulations, reduce operational risks, and enhance confidence in their safety-related control systems.
Related Standards
Adherence to EN IEC 62061:2021/A2:2026 often involves coordination with several related standards:
- IEC 61508 - Functional safety of electrical/electronic/programmable electronic safety-related systems (foundation standard for functional safety).
- ISO 13849-1 - Safety of machinery - Safety-related parts of control systems - General principles for design.
- IEC 60947-5-5 - Low-voltage switchgear and controlgear - Control circuit devices and switching elements - Electrical emergency stop devices.
- ISO 13850 - Safety of machinery - Emergency stop function.
These standards work together to provide a comprehensive framework for ensuring the functional safety of machinery control systems. Compliance with EN IEC 62061:2021/A2:2026 supports robust risk management, legal compliance, and fosters a culture of safety in automated industrial environments.
Get Certified
Connect with accredited certification bodies for this standard
DVS-ZERT GmbH
German welding certification society.

IMQ S.p.A. (Certification)
Italian electrical product certification.

SLG Prüf- und Zertifizierungs GmbH
German testing and certification body.
Sponsored listings
Frequently Asked Questions
EN IEC 62061:2021/A2:2026 is a draft published by CLC. Its full title is "Safety of machinery - Functional safety of safety-related control systems". This standard covers: Safety of machinery - Functional safety of safety-related control systems
Safety of machinery - Functional safety of safety-related control systems
EN IEC 62061:2021/A2:2026 is classified under the following ICS (International Classification for Standards) categories: 13.110 - Safety of machinery; 25.040.99 - Other industrial automation systems; 29.020 - Electrical engineering in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 62061:2021/A2:2026 has the following relationships with other standards: It is inter standard links to EN IEC 62061:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 62061:2021/A2:2026 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC; Standardization Mandates: M/396. 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.
EN IEC 62061:2021/A2:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 62061:2021/oprA2:2025
01-maj-2025
Varnost strojev - Funkcijska varnost nadzornih sistemov, povezanih z varnostjo
Amendment 2 - Safety of machinery - Functional safety of safety-related control systems
Sicherheit von Maschinen - Funktionale Sicherheit sicherheitsbezogener
Steuerungssysteme
Amendement 2 - Sécurité des machines - Sécurité fonctionnelle des systèmes de
commande relatifs à la sécurité
Ta slovenski standard je istoveten z: EN 62061:2021/prA2:2025
ICS:
13.110 Varnost strojev Safety of machinery
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
SIST EN 62061:2021/oprA2:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
SIST EN 62061:2021/oprA2:2025
SIST EN 62061:2021/oprA2:2025
44/1058/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62061/AMD2 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-03-28 2025-06-20
SUPERSEDES DOCUMENTS:
44/1027/CD, 44/1043A/CC
IEC TC 44 : SAFETY OF MACHINERY - ELECTROTECHNICAL ASPECTS
SECRETARIAT: SECRETARY:
United Kingdom Mrs Nyomee Hla-Shwe Tun
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
SC 65A
ASPECTS CONCERNED:
Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Amendment 2 - Safety of machinery - Functional safety of safety-related control systems
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it,
for any other purpose without permission in writing from IEC.
SIST EN 62061:2021/oprA2:2025
IEC CDV 62061/AMD2 ED2 © IEC 2025 2 44/1058/CDV
1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 ____________
4 SAFETY OF MACHINERY –
5 FUNCTIONAL SAFETY OF SAFETY-RELATED CONTROL SYSTEMS
7 AMENDMENT 2
9 FOREWORD
10 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
11 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
12 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
13 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
14 Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
15 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
16 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
17 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
18 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
19 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
20 consensus of opinion on the relevant subjects since each technical committee has representation from all
21 interested IEC National Committees.
22 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
23 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
24 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
25 misinterpretation by any end user.
26 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
27 transparently to the maximum extent possible in their national and regional publications. Any divergence between
28 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
29 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
30 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
31 services carried out by independent certification bodies.
32 6) All users should ensure that they have the latest edition of this publication.
33 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
34 members of its technical committees and IEC National Committees for any personal injury, property damage or
35 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
36 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
37 Publications.
38 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
39 indispensable for the correct application of this publication.
40 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
41 patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
42 respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
43 may be required to implement this document. Howeve
...



