EN IEC 62301:2026
(Main)Measurement of standby power for appliances and equipment
General Information
- Abstract
- Status
- Published
- Publication Date
- 30-Jul-2026
- Technical Committee
- CLC/TC 59X - Consumer information related to household electrical appliances
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 31-Jul-2026
- Due Date
- 31-Jul-2026
- Completion Date
- 31-Jul-2026
Overview
EN IEC 62301:2026 - Measurement of Standby Power for Appliances and Equipment is a key international standard developed by CLC and the International Electrotechnical Commission (IEC). This standard establishes consistent and harmonized methods for measuring the electrical power consumption of appliances and equipment in standby and other non-active modes, such as off mode. By addressing various products powered by AC or DC sources, as well as battery-powered devices, EN IEC 62301:2026 provides a reliable approach for reporting and comparing standby power use-an important factor for energy efficiency and environmental sustainability.
Key Topics
- Scope and Applicability: The standard applies to household appliances, information technology equipment, audio/video systems, multimedia equipment, and even gas-burning equipment equipped with electrical components that exhibit non-active (standby, off, maintenance) modes.
- Measurement Methods: EN IEC 62301:2026 specifies standardized conditions for measuring power consumption, including requirements for test environment, test equipment accuracy, sampling rates, and data logging.
- Modes Defined: It covers the definitions and distinctions between standby mode, off mode, active mode, maintenance mode, and excludes active (operational) as well as networked standby (covered by IEC 63474).
- Data Reporting: The standard outlines comprehensive requirements for reporting measured data, including test parameters, product details, measured values for various modes, and methodological transparency.
- Instrument Performance: There are enhanced guidelines for measurement uncertainty, particularly with low power and fluctuating loads, and the selection and validation of measurement instruments.
Applications
EN IEC 62301:2026 is crucial for a range of stakeholders concerned with energy efficiency, product compliance, and market access:
- Product Manufacturers: Utilize this standard to measure and document standby power consumption during product development, and to demonstrate compliance with energy consumption regulations.
- Test Laboratories: Ensure repeatable, accurate standby power measurements for certification, market surveillance, and product assessment.
- Regulators and Policymakers: Reference EN IEC 62301:2026 when defining minimum energy performance standards related to standby and off mode power, supporting the reduction of "phantom" energy use in appliances and electronic devices.
- Eco-Design and Labelling Programs: Provide credible and comparable data to inform consumers and guide product development toward more energy-efficient options.
- Procurement Professionals: Rely on standardized results to make informed purchasing decisions for energy-efficient equipment.
The standard supports broader environmental goals by enabling precise measurement and comparison of non-active power consumption-a significant and often underestimated contributor to overall energy demand.
Related Standards
- IEC 63474: Addresses measurement of networked standby power consumption for edge equipment that can be reactivated via network signals.
- IEC 63103: Specifies methods for measuring standby power in lighting equipment.
- IEC 60050-904: Provides key terminology related to functions and operation modes.
- ISO/IEC Directives, Part 2: Used in drafting and harmonizing international standards.
Manufacturers and test professionals referencing EN IEC 62301:2026 are encouraged to consult related standards where appropriate, ensuring comprehensive compliance and measurement consistency across product types and geographical markets.
Implementing EN IEC 62301:2026 ensures reliable standby power measurement, enhances transparency in energy labeling, and supports global efforts for improved appliance energy efficiency. The standard’s requirements for data accuracy, repeatability, and comprehensive reporting make it a cornerstone for sustainable product design and responsible energy management.
Relations
- Effective Date
- 20-Feb-2024
- Effective Date
- 15-Sep-2026
- Effective Date
- 04-Aug-2026
- Referred By
EN IEC 63174:2022 - Electrically operated toothbrushes - Methods for measuring the performance - Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
- Effective Date
- 04-Aug-2026
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Frequently Asked Questions
EN IEC 62301:2026 is a standard published by CLC. Its full title is "Measurement of standby power for appliances and equipment". This standard covers: Measurement of standby power for appliances and equipment
Measurement of standby power for appliances and equipment
EN IEC 62301:2026 is classified under the following ICS (International Classification for Standards) categories: 17.220.20 - Measurement of electrical and magnetic quantities; 97.030 - Domestic electrical appliances in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 62301:2026 has the following relationships with other standards: It is inter standard links to EN 50564:2011, EN IEC 61591:2023/A1:2026, EN 60350-2:2018, EN IEC 63174:2022, EN IEC 60350-1:2023/A1:2025, EN IEC 60350-2:2025, EN IEC/ASTM 62885-7:2021, EN IEC 62087-7:2019, EN 50304:2009, EN IEC 60879:2019, EN IEC 62087-3:2023, EN IEC 63281-3-1:2024, EN 60350-1:2016, EN IEC 61591:2020, EN 17645:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 62301:2026 is associated with the following European legislation: EU Directives/Regulations: 1275/2008, 2023/826/EU; Standardization Mandates: M/560. 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 62301:2026 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
01-oktober-2026
Nadomešča:
SIST EN 50564:2011
Merjenje porabe energije v stanju pripravljenosti za naprave in opremo
Measurement of standby power for appliances and equipment
Messung der Standby-Leistungsaufnahme für Geräte
Appareils électrodomestiques - Mesure de la consommation en veille
Ta slovenski standard je istoveten z: EN IEC 62301:2026
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
97.030 Električni aparati za dom na Domestic electrical
splošno appliances in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 62301
NORME EUROPÉENNE
EUROPÄISCHE NORM July 2026
ICS 17.220.20; 97.030 Supersedes EN 50564:2011
English Version
Measurement of standby power for appliances and equipment
(IEC 62301:2026)
Appareils électrodomestiques - Mesure de la consommation Messung der Standby-Leistungsaufnahme für Geräte
en veille (IEC 62301:2026)
(IEC 62301:2026)
This European Standard was approved by CENELEC on 2026-06-26. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye 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
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62301:2026 E
European foreword
The text of document 59/867/FDIS, future edition 3 of IEC 62301, prepared by TC 59 "Performance of
household and similar electrical appliances" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 62301:2026.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-07-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-07-31
document have to be withdrawn
This document supersedes EN 50564:2011 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62301:2026 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 standard indicated:
IEC 63103 NOTE Approved as EN IEC 63103
IEC 62301:2011 NOTE Approved as EN 50564:2011
IEC 62680-1-2 NOTE Approved as EN IEC 62680-1-2
IEC 61000-3-2 NOTE Approved as EN IEC 61000-3-2
IEC 60436 NOTE Approved as EN IEC 60436
IEC 60456 NOTE Approved as EN 60456
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 63474 2026 Electrical and electronic household and EN IEC 63474 2026
office equipment - Measurement of
networked standby power of edge
equipment
IEC 62301 ®
Edition 3.0 2026-05
INTERNATIONAL
STANDARD
HORIZONTAL PUBLICATION
GROUP ENERGY EFFICIENCY PUBLICATION
Measurement of standby power for appliances and equipment
ICS 17.220.20; 97.030 ISBN 978-2-8327-1243-6
IEC 62301:2026-05(en)
IEC 62301:2026 © IEC 2026
CONTENTS
FOREWORD . 3
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 8
3 Terms, definitions, abbreviated terms and symbols . 8
3.1 Terms and definitions. 8
3.1.1 Function-related terms and definitions . 8
3.1.2 Mode-related terms and definitions . 11
3.1.3 Network-related terms and definitions . 12
3.1.4 Other terms and definitions . 14
3.2 Abbreviated terms . 15
3.3 Symbols . 16
4 General conditions for measurements . 16
4.1 General . 16
4.2 Test room . 16
4.3 Power supply . 17
4.3.1 Supply voltage and frequency . 17
4.3.2 Supply voltage waveform . 18
4.4 Power measuring instruments . 18
4.4.1 General . 18
4.4.2 Power measurement uncertainty . 19
4.4.3 Power measurement sampling rate (frequency response) . 22
4.4.4 Other instrument requirements . 22
5 Measurements . 24
5.1 General . 24
5.2 Preparation of the EUT . 24
5.3 Procedure . 25
5.3.1 General . 25
5.3.2 Data collection . 26
5.3.3 Data analysis . 26
5.3.4 Assessment of stability . 28
5.4 Assessment of power management functions . 32
5.4.1 General . 32
5.4.2 Power management conditions to be assessed . 32
5.4.3 Assessment procedure for power management functions . 32
6 Test report . 33
6.1 Product details . 33
6.2 Test parameters . 33
6.3 Measured data, for each product mode as applicable . 34
6.4 Test and laboratory details . 35
Annex A (informative) Guidance on modes and functions for selected product types . 36
A.1 General . 36
A.2 Modes and functions - conceptual framework . 36
Annex B (informative) Notes on the measurement of non-active modes . 38
B.1 Low power measurement issues . 38
B.1.1 General . 38
IEC 62301:2026 © IEC 2026
B.1.2 Effect of crest factor . 38
B.1.3 Effect of low power factor . 39
B.1.4 Products having large value X Capacitors . 40
B.1.5 Effect of spikes or fluctuations introduced by the product during test . 40
B.2 Measurement instrument considerations . 40
B.2.1 Instruments for power measurements . 40
B.2.2 Sampling rate requirements (frequency response) . 41
B.2.3 Sampling requirements for cyclic and pulsing loads . 41
B.2.4 Measurement of DC load components . 42
B.2.5 Automated software considerations . 42
B.3 Application of this document . 42
B.4 Connection of electrical instruments . 43
B.4.1 Determination of connection arrangement . 43
B.4.2 Lower power loads: supply side voltage measurement . 44
B.4.3 Higher power loads: load-side voltage measurement . 45
Annex C (informative) Converting power values to energy . 46
Annex D (informative) Determination of uncertainty of measurement . 47
D.1 Determination of uncertainty of measurement . 47
D.2 Example calculations . 48
Annex E (informative) Sample test report template . 52
Annex F (informative) EUT preparation flowchart . 56
Bibliography . 57
Figure 1 – Illustration of stability limits for slope for test periods from 15 min to 300 min
for loads >1W . 29
Figure A.1 – Category of functions and operating conditions of products in respect to
functions provided (modes) . 36
Figure A.2 – Concept diagram of reactivation function and related terms . 37
Figure B.1 – Connection arrangement for products powered directly from an AC power
supply for lower power loads . 44
Figure B.2 – Connection arrangement for a product powered via an external power
supply for lower power loads . 44
Figure B.3 – Connection arrangement for a product powered directly from the a.c. main
supply for higher power loads . 45
Figure B.4 – Connection arrangement for a product powered via an external power
supply for higher power loads . 45
Figure F.1 – Recommended EUT preparation flowchart . 56
Table 1 – Typical nominal electricity supply details for some regions . 18
Table 2 – Illustration of calculated slope stability limits for different example total test
periods: average power ≤ 1 W and average power > 1 W . 29
IEC 62301:2026 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Measurement of standby power for appliances and equipment
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 Committees in that sense. While all reasonable efforts are made to ensure that
the technical content of IEC Publications is accurate, IEC cannot be held responsible for the
way in which they are used or for any misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC
Publications transparently to the maximum extent possible in their national and regional
publications. Any divergence between any IEC Publication and the corresponding national or
regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies
provide conformity assessment services and, in some areas, access to IEC marks of conformity.
IEC is not responsible for any services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including
individual experts and members of its technical committees and IEC National Committees for
any personal injury, property damage or other damage of any nature whatsoever, whether direct
or indirect, or for costs (including legal fees) and expenses arising out of the publication, use
of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced
publications is indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve
the use of (a) patent(s). IEC takes no position concerning the evidence, validity or applicability
of any claimed patent rights in respect thereof. As of the date of publication of this document,
IEC had not received notice of (a) patent(s), which may be required to implement this document.
However, implementers are cautioned that this may not represent the latest information, which
may be obtained from the patent database available at https://patents.iec.ch. IEC shall not be
held responsible for identifying any or all such patent rights.
IEC 62301:2026 © IEC 2026
IEC 62301 has been prepared by IEC technical committee 59: Performance of household and
similar electrical appliances. It is an International Standard.
This third edition cancels and replaces the second edition published in 2011. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) expansion of the scope in line with the approved horizontal application of this standard;
b) inclusion of battery powered and DC powered devices;
c) complete revision and expansion of the definitions (this has been done in conjunction with
TC 100/TA19 JWG2 and the definitions in this document and IEC 63474:2026 for networked
standby are fully aligned);
d) clarification that this document covers all non-active modes except for networked standby
mode(s), which is covered by IEC 63474:2026;
e) reiteration that a wide range of product committees and their standards can reference this
document and that they are free to define modes relevant for their products and to some
extent measurement conditions that may be product specific, while using the broad
methodology set out in this document;
f) more precise specification of room illuminance requirements has been added, where
required;
g) mandatory requirements for data logging of test data;
h) requirement that no data loss or out of range records occur within the data set being used
to assess product performance;
i) removal of the Average reading method and Direct meter reading method as valid
measurement methods;
j) greater detail in set-up procedures;
k) revision of stability requirements, including the refinement of linear regression validity
requirements and cyclic load validity requirements, and the introduction of a new alternative
approach called the moving average method to ensure that results are as representative
and accurate as possible;
l) further refinement of measurement uncertainty requirements for power measuring
instruments, especially for more difficult loads with high crest factor and/or low power factor,
so that these are more in line with changes in the performance of measuring instruments
typically used in laboratories;
m) inclusion of explicit requirements in the assessment of large data sets against uncertainty
requirements;
n) updated guidance on product configuration, instrumentation settings and calculation of
measurement uncertainty;
o) inclusion of definitions for all relevant non-active modes and use of these new definitions
and more rigorous terminology throughout the document.
The text of this International Standard is based on the following documents:
Draft Report on voting
59/867/FDIS 59/870/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
IEC 62301:2026 © IEC 2026
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
It has the status of a group energy efficiency publication in accordance with IEC GUIDE 118 [1] .
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
IEC 62301:2026 © IEC 2026
INTRODUCTION
The methods defined in this document are intended to cover non-active modes. They are not
intended to be used to measure the power of products during active modes (also called "on
mode(s)"), as these are generally covered by IEC or other product standards (see Bibliography
for some examples), although the measuring techniques, measurement uncertainty
determination and test equipment specifications could be adapted for such measurements with
careful review.
IEC 62301:2026 © IEC 2026
1 Scope
This document specifies methods of measurement of electrical power in standby mode(s) and
other non-active modes (such as off mode) and the reporting of the results.
The measurement of power and energy use in networked standby mode, is covered by IEC
63474:2026.
This document applies to electronic and electrical equipment powered by:
– low voltage AC power (LV ≤ 1 000 V AC), or
– low voltage DC power (LV ≤ 1 500 V DC) that is ripple-free, measured between conductors
or between a conductor and earth, or
– extra low voltage AC power (ELV ≤ 50 V AC), or
– extra low voltage DC power (ELV ≤ 120 V DC) that is ripple-free, measured between
conductors or between a conductor and earth, or
– an external power supply that provides low voltage or extra low voltage AC or DC power, or
– a separate source of extra low voltage DC power, or
– an internal main battery.
Conditions that are out of scope:
– active modes (primary function)
– networked standby mode (which is covered by IEC 63474:2026)
– conditions where main batteries are being charged other than in maintenance mode
– disconnected condition of the equipment.
This document applies to the following product groups where a non-active mode is present:
– household appliances, electrical and electronic equipment such as information technology
equipment, audio, video and multimedia systems and equipment,
– gas burning equipment with electrical components.
NOTE 1 The measurement of power, energy use and performance of products during their intended use (when
performing their primary functions) are generally specified in product standards and are not covered by this
document.
Where this document is referenced by performance standards or procedures, these are to
define and name the relevant non-active mode to which this test procedure is applied.
NOTE 2 Non-active modes for lighting equipment and the measurement of power is specified in IEC 63103 [2].
NOTE 3 Edge equipment can also include auxiliary batteries.
Annex A shows the conceptual framework of power modes and functions.
This document does not specify safety requirements. It does not specify minimum performance
requirements nor does it set maximum limits on power or energy use.
This group energy efficiency publication is primarily intended to be used as an energy efficiency
standard for the products mentioned in the scope, but is also intended to be used by TCs in the
preparation of publications for products which are included in the boundary mentioned in the
scope of this document.
IEC 62301:2026 © IEC 2026
2 Normative references
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.
IEC 63474:2026, Electrical and electronic household and office equipment - Measurement of
networked standby power consumption of edge equipment
3 Terms, definitions, abbreviated terms and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
– IEC Electropedia: available at https://www.electropedia.org/
– ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1 Function-related terms and definitions
3.1.1.1
function
predetermined operation undertaken by a product
Note 1 to entry: Functions can be controlled by an interaction of the user, of other technical systems, and of the
system itself, from measurable inputs from the environment and/or time.
Note 2 to entry: A function can be classified as primary function (3.1.1.2), secondary function (3.1.1.3) or tertiary
function (3.1.1.4), which are broad categories. The specific categorisation of a function can be determined for each
type of equipment.
3.1.1.2
primary function
function (3.1.1.1) providing a main intended purpose
EXAMPLE Cleaning of clothes by a washing machine, displaying of video or providing sound by a television.
Note 1 to entry: Products can have more than one primary function.
Note 2 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
[SOURCE: IEC 60050-904:2014 [3], 904-03-02, modified - ‘main’ added to the definition,
Example and new ‘Note 1 to entry’ added, and Table 1 replaced by Figure A.1 in Note 2 to
entry.]
3.1.1.3
secondary function
function (3.1.1.1) that enables, supplements or enhances a primary function
(3.1.1.2)
EXAMPLE 1 Secondary functions can include status information functions (3.1.1.5), network integrity functions
(3.1.1.6), reactivation functions (3.1.1.7), or sensor-based functions (3.1.1.10).
EXAMPLE 2 Timer informing the remaining time for completion of the washing program or the delay start function
(3.1.1.1) of a washing machine.
IEC 62301:2026 © IEC 2026
Note 1 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
[SOURCE: IEC 60050-904:2014 [3], 904-03-03, modified - Examples added, in Note 1 to entry
‘Table 1’ replaced by Figure A.1.]
3.1.1.4
tertiary function
function (3.1.1.1) other than a primary function (3.1.1.2) or a secondary function
(3.1.1.3)
EXAMPLE 1 An EMC filter, if present, can provide its function (3.1.1.1) in active modes (3.1.2.2) and non-active
modes (3.1.2.3).
EXAMPLE 2 Event and failure data recorder in a washing machine for service and design improvement purposes.
Note 1 to entry: Primary functions, secondary functions and tertiary functions are not distinguished by whether they
are necessary or non-necessary.
Note 2 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
[SOURCE: IEC 60050-904:2014 [3], 904-03-04, modified - in Example 1 ‘off mode, partial on
mode and on mode’ replaced by ‘non-active modes and active modes‘, Example 2 amended, new
‘Note 1 to entry’ and ‘Note 2 to entry’ added. In Note 3 to entry ‘Table 1’ replaced by Figure A.1.]
3.1.1.5
status information function
function (3.1.1.1) by which the product provides usage-orientated information
EXAMPLE 1 Date, time, timer information, or past or future operation.
EXAMPLE 2 A reactivation function (3.1.1.7) indicated using a simple optical indicator (e.g. a light-emitting diode
(LED)).
Note 1 to entry: Displayed content that relates to the primary function (3.1.1.2) of a display, e.g. displaying moving
images, is not status information. The primary display of a product can provide status information in active mode
(3.1.2.2).
Note 2 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
[SOURCE: IEC 60050-904:2014 [3], 904-03-07, modified - ‘equipment provides simple use-
oriented’ replaced by ‘product provides usage-oriented’, original 'Note 1 to entry' changed to
'EXAMPLE', new ‘Note 1 to entry added, in Note 2 to entry ‘Table 1’ replaced by Figure A.1.]
3.1.1.6
network integrity function
function (3.1.1.1) to maintain a network (3.1.3.1) communication path that is
external to the product
Note 1 to entry: The communication can be via wired or wireless interfaces.
Note 2 to entry: In order to communicate, it is necessary for the product to have at least one network port (3.1.3.5)
activated.
Note 3 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
[SOURCE: IEC 60050-904:2014 [3], 904-03-08, modified - ‘equipment’ replaced by ‘product’,
original ‘Note 3 to entry’ deleted, in Note 3 to entry ‘Table 1’ replaced by Figure A.1.]
IEC 62301:2026 © IEC 2026
3.1.1.7
reactivation function
function (3.1.1.1) allowing a product to be switched into a different mode
(3.1.2.1) with additional functions (3.1.1.1) via an internal signal, manually using a control on
the product, with a remote control unit, or via an externally initiated signal
EXAMPLE 1 A timer could provide the internal signal leading to reactivation.
EXAMPLE 2 The reactivation function can be indicated using a simple optical device (e.g. a light-emitting diode
(LED)).
Note 1 to entry: The mode (3.1.2.1) after reactivation can be an active mode (3.1.2.2) .
Note 2 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1. Figure A.2 provides a
concept diagram.
[SOURCE: IEC 60050-904:2014 [3], 904-03-06, modified - definition extended to cover both
internal reactivation function and network reactivation function, original ‘Note 2 to entry’ deleted,
in Note 2 to entry ‘Table 1’ replaced by Figure A.1 and 'Figure A.2 provides a concept diagram.’
added.]
3.1.1.8
internal reactivation function
reactivation function (3.1.1.7) where the product is switched into a different mode
(3.1.2.1) via an internal signal, with its remote control unit, or manually using a control on the
product
Note 1 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1. Figure A.2 provides a
concept diagram.
3.1.1.9
network reactivation function
reactivation function (3.1.1.7) where the product is switched into a different mode
(3.1.2.1) via an external signal through a network (3.1.3.1)
Note 1 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1. Figure A.2 provides a
concept diagram.
3.1.1.10
sensor-based function
function (3.1.1.1) using a sensor to monitor a certain condition, internally or
externally to the product
3.1.1.11
protective function
function (3.1.1.1) that operates to prevent harm to persons or damage to property
EXAMPLE Protective functions can operate in different modes (3.1.2.1), for instance:
– a back-siphonage device fitted to a dishwasher can operate in any non-active modes (3.1.2.3),
– a flood protection device fitted to a washing machine can operate in any non-active modes (3.1.2.3),
– a no-movement deactivation switch fitted to an iron can operate in active mode (3.1.2.2), and
– a touch control for a cooking hob requires a minimum of two activation steps (switch on & set level) to commence
heating for the primary function (3.1.1.2) to prevent accidental operation.
[SOURCE: IEC 60050-904:2014 [3], 904-03-05, modified - removed text "after the occurrence
of a failure in the equipment so as" to ensure that protective function covers user safety.
Examples modified to align with mode definitions in this document, added cook top example.]
IEC 62301:2026 © IEC 2026
3.1.1.12
emergency warning & alert function
EWF
automatic receiver switching and emergency reactivation by alarm
announcement broadcast signal
Note 1 to entry: Measurement of power in a non-active mode (3.1.2.3) when this function (3.1.1.1) is active is
covered by IEC 63474:2026.
3.1.1.13
power management
power management function
automatic control mechanism that achieves within a preset timeframe, or other conditions, a
certain power demand consistent with a pre-determined level of functionality
[SOURCE: IEC 60050-904:2014 [3], 904-03-01, modified - 'the smallest input power' replaced
by 'within a preset timeframe, or other conditions, a certain power demand' by ', Note 1 to entry
omitted.]
3.1.1.14
power supply function
ability of the charging circuitry or power supply to directly power
some or all of the functions (3.1.1.1) of the battery powered product without drawing power from
the battery
Note 1 to entry: This can include main batteries (3.1.4.4) charging or main batteries (3.1.4.4) removed.
Note 2 to entry: Chargers with a power supply function do not show the typical recharging pattern of chargers
without a power supply function as the batteries are not permanently discharged by internal processes, display
information and networked standby (3.1.2.5) energy use. This energy use can be supplied exclusively from the power
supply unit or also proportionally from the battery and the power supply unit.
3.1.2 Mode-related terms and definitions
3.1.2.1
mode
condition that has any combination of functions (3.1.1.1)
Note 1 to entry: A mode with one or no functions (3.1.1.1) could be a valid combination.
Note 2 to entry: Any transition of a product to a different mode, either through user intervention or automatically
initiated, is not part of either mode.
Note 3 to entry: A mode can have functions (3.1.1.1) with variable power draw.
Note 4 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
3.1.2.2
active mode
on mode
mode (3.1.2.1) in which the product is connected to a power source and provides at least one
primary function (3.1.1.2)
Note 1 to entry: The terms “on”, “in-use”, and “operation” also describe this mode (3.1.2.1).
Note 2 to entry: This includes conditions during which the equipment can promptly provide a primary function
(3.1.1.2) but is not doing so, such as:
– when content on a media playing device is paused,
– when noise cancelling is active but no audio is playing.
Note 3 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
IEC 62301:2026 © IEC 2026
3.1.2.3
non-active mode
non-active
mode (3.1.2.1) in which the product is connected to a power source and provides no primary
functions (3.1.1.2)
Note 1 to entry: This can include modes (3.1.2.1) such as off mode (3.1.2.6), standby mode (3.1.2.4) and networked
standby mode (3.1.2.5), as applicable. Product groups can have product specific non-active modes which can be
identified and named as appropriate.
Note 2 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
3.1.2.4
standby mode
standby
non-active mode (3.1.2.3) providing at least one secondary function (3.1.1.3)
Note 1 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
3.1.2.5
networked standby mode
networked standby
standby mode (3.1.2.4) in which the edge equipment (3.1.3.3) is able to switch into a different
mode (3.1.2.1) via a network reactivation function (3.1.1.9)
Note 1 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
Note 2 to entry: Measurement of power in networked standby mode is covered by IEC 63474:2026.
3.1.2.6
off mode
off
non-active mode (3.1.2.3) in which the product is providing no secondary function (3.1.1.3)
Note 1 to entry: Figure A.1 provides a structured overview as an aid to understanding functional relationships and
energy use applicable in electrotechnical products. Additional terms and definitions to fulfil the particular needs of
product sectors should be defined within the structure of the concepts shown in Figure A.1.
3.1.2.7
maintenance mode
mode (3.1.2.1) of a charging circuitry that maintains a battery at a pre-set charge limit
while the battery remains connected to the charging circuitry
Note 1 to entry: Some products can periodically charge the battery while connected to mains power and run some
functions (3.1.1.1) from the battery between these charging cycles. This is still considered to be maintenance mode.
Not all battery powered products have a maintenance mode.
Note 2 to entry: Maintenance mode can include the display of information or status and networked standby mode
(3.1.2.5) when connected to a network (3.1.3.1). This mode (3.1.2.1) is focusing on the state of the main battery
(3.1.4.4) and is independent from other functions (3.1.1.1) present.
3.1.3 Network-related terms and definitions
3.1.3.1
network
communication infrastructure with a topology of links, an architecture, including the physical
components, organisational principles, communication procedures and formats (protocols)
IEC 62301:2026 © IEC 2026
Note 1 to entry: A network can include connections that use layers in the Open Systems Interconnection (OSI)
model such as WiFi (IEEE 802.11 [4]) and wired networks (IEEE 802.3 [5]) as well as other types of two way digital
data links that possibly do not use all OSI layers or IP addresses such as HDMI® (CEC), Bluetooth®, USB and DVI.
A network does not normally include any form of one way communication (for example from an infrared remote
control) or broadcast signal (the exception being the emergency warning & alert function (3.1.1.12)).
3.1.3.2
networked equipment
equipment that can connect to a network (3.1.3.1) and has one or more network ports (3.1.3.5)
3.1.3.3
edge equipment
networked equipment (3.1.3.2) that can interact with a network (3.1.3.1) or other products and
that does not have, as its primary function (3.1.1.2), the passing of network (3.1.3.1) traffic to
provide a network (3.1.3.1)
Note 1 to entry: Examples of edge equipment are given in IEC 63474:2
...