SIST EN IEC 60730-2-5:2026

SLOVENSKI STANDARD
01-september-2026
Avtomatske električne krmilne naprave - 2-5. del: Posebne zahteve za avtomatske
električne krmilne sisteme gorilnikov
Automatic electrical controls - Part 2-5: Particular requirements for automatic electrical
burner control systems
Automatische elektrische Regel- und Steuergeräte für den Hausgebrauch und ähnliche
Anwendungen - Teil 2-5: Besondere Anforderungen an automatische elektrische
Brenner-Steuerungs- und Überwachungssysteme
Dispositifs de commande électrique automatiques - Partie 2-5: Exigences particulières
pour les systèmes de commande électrique automatiques des brûleurs
Ta slovenski standard je istoveten z: EN IEC 60730-2-5:2026
ICS:
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60730-2-5

NORME EUROPÉENNE
EUROPÄISCHE NORM June 2026
ICS 97.120 Supersedes EN 60730-2-5:2015; EN 60730-2-
5:2015/A1:2019; EN 60730-2-5:2015/A2:2021; EN 60730-
2-5:2015/AC:2023-12
English Version
Automatic electrical controls - Part 2-5: Particular requirements
for automatic electrical burner control systems
(IEC 60730-2-5:2026)
Dispositifs de commande électrique automatiques - Partie Automatische elektrische Regel- und Steuergeräte für den
2-5: Exigences particulières pour les systèmes de Hausgebrauch und ähnliche Anwendungen - Teil 2-5:
commande électrique automatiques des brûleurs Besondere Anforderungen an automatische elektrische
(IEC 60730-2-5:2026) Brenner-Steuerungs- und Überwachungssysteme
(IEC 60730-2-5:2026)
This European Standard was approved by CENELEC on 2026-05-29. 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 60730-2-5:2026 E

European foreword
The text of document 72/1530/FDIS, future edition 5 of IEC 60730-2-5, prepared by TC 72 "Automatic
electrical controls" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-06-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-06-30
document have to be withdrawn
This document supersedes EN 60730-2-5:2015 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.
This document is read in conjunction with EN IEC 60730-1.
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 60730-2-5:2026 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 60127-1:2023 NOTE Approved as EN IEC 60127-1:2024 (not modified)
IEC 60730-2-6 NOTE Approved as EN IEC 60730-2-6
IEC 60947-1:2020 NOTE Approved as EN IEC 60947-1:2021 (not modified)
IEC 62282-3-100 NOTE Approved as EN IEC 62282-3-100
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
Addition:
IEC 60068-2-6 - Environmental testing - Part 2-6: Tests - EN 60068-2-6 -
Test Fc: Vibration (sinusoidal)
ISO/IEC 80079-20-1 2017 Explosive atmospheres - Part 20-1: EN ISO/IEC 80079- 2019
Material characteristics for gas and 20-1
vapour classification - Test methods and
data
IEC 60730-2-5 ®
Edition 5.0 2026-04
INTERNATIONAL
STANDARD
Automatic electrical controls -
Part 2-5: Particular requirements for automatic electrical burner control systems
ICS 97.120  ISBN 978-2-8327-1211-5

IEC 60730-2-5:2026-04(en)
IEC 60730-2-5:2026 © IEC 2026
CONTENTS
FOREWORD . 3
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 8
4 General . 15
5 Required technical information . 16
6 Protection against electric shock . 18
7 Provision for protective earthing . 19
8 Terminals and terminations. 19
9 Constructional requirements . 20
10 Threaded parts and connections . 28
11 Creepage distances, clearances and distances through solid insulation . 28
12 Components . 29
13 Fault assessment on electronic circuits . 29
14 Moisture and dust resistance . 30
15 Electric strength and insulation resistance . 30
16 Heating . 31
17 Manufacturing deviation and drift . 31
18 Environmental stress . 31
19 Endurance . 32
20 Mechanical strength . 35
21 Resistance to heat, fire and tracking . 36
22 Resistance to corrosion . 36
23 Electromagnetic compatibility (EMC) requirements – Emission . 36
24 Normal operation . 36
25 Electromagnetic compatibility (EMC) requirements – Immunity . 36
26 Abnormal operation tests . 36
Annex H (normative) Requirements related to functional safety . 37
Annex J (normative) Requirements for thermistor elements and controls using
thermistors. 49
Annex Q (informative) Regional differences relevant for the member countries of
Cenelec . 50
Annex R (informative) National differences relevant in the United States of America . 51
Annex S (informative) National differences relevant in Japan . 52
Annex T (informative) National differences relevant in Canada . 53
Annex AA (informative) Functional characteristics of burner control systems to be

specified by the relevant appliance standards, as applicable . 54
Bibliography . 55

Figure 101 – Pulse spark generation . 19
Figure 102 – Typical installation of the independent combustion air supply for room
independent operation . 28
IEC 60730-2-5:2026 © IEC 2026
Figure H.101 – Voltage variation test . 44

Table 1 – Required technical information and methods of providing these information . 16
Table H.1 – Additional items to Table 1 . 37
Table H.101 – Timing of short-term supply voltage variations . 43
Table H.102 – Test levels for electrostatic discharge . 46
Table AA.1 – Functional characteristics of burner control systems to be specified by
the relevant appliance standards, as applicable . 54

IEC 60730-2-5:2026 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Automatic electrical controls -
Part 2-5: Particular requirements for automatic
electrical burner control systems

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 60730-2-5 has been prepared by IEC technical committee 72: Automatic electrical controls.
It is an International Standard.
This fifth edition cancels and replaces the fourth edition published in 2013, Amendment 1:2017
and Amendment 2:2021. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
Adoption of IEC 60730-1:2022 with all of its significant changes to IEC 60730-1:2013, including
Amendment 1:2015 and Amendment 2:2020.
IEC 60730-2-5:2026 © IEC 2026
The text of this International Standard is based on the following documents:
Draft Report on voting
72/1530/FDIS 72/1539/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.
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.
This part 2-5 is intended to be used in conjunction with IEC 60730-1. It was established on the
basis of the sixth edition of that standard. Consideration may be given to future editions of, or
amendments to, IEC 60730-1.
This part 2-5 supplements or modifies the corresponding clauses in IEC 60730-1, so as to
convert that publication into the IEC standard: Particular requirements for automatic electrical
burner control systems.
Where this part 2-5 states "addition", "modification" or "replacement", the relevant requirement,
test specification or explanatory matter in part 1 should be adapted accordingly.
When a particular clause or subclause of Part 1 is not mentioned in this part 2, that clause or
subclause applies.
In the development of a fully international standard, it has been necessary to take into
consideration the differing requirements resulting from practical experience in various parts of
the world and to recognize the variation in national electrical systems and wiring rules.
The reader's attention is drawn to the fact that Annex Q, Annex R, Annex S and Annex T list all
of the "in-some-country" clauses on differing practices of a less permanent nature relating to
the subject of this document.
In this publication, the following print types are used:
– requirements proper: in roman type;
– test specifications: in italic type;
– explanatory matter: in smaller roman type;
– defined terms: bold type.
Subclauses, notes or items which are additional to those in Part 1 are numbered starting from
101, additional annexes are lettered AA, BB, etc.
A list of all parts of the IEC 60730 series, under the general title: Automatic electrical controls,
can be found on the IEC website.
IEC 60730-2-5:2026 © IEC 2026
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 60730-2-5:2026 © IEC 2026
1 Scope
This clause of Part 1 is replaced by the following:
This part of IEC 60730 applies to automatic electrical burner control systems for the
automatic control of burners for oil, gas, coal or other combustibles intended to be used
– for household and similar use;
– in shops, offices, hospitals, farms and commercial and industrial applications;
NOTE 1 Throughout this document, where it can be used unambiguously, the word "system" means "burner
control system" and "systems" means "burner control systems".
– for equipment that is used by the public, such as equipment intended to be used in shops,
offices, hospitals, farms and commercial and industrial applications;
NOTE 2 Throughout this document, the word "equipment" means "appliance and equipment."
EXAMPLE 1 Controls for commercial catering, heating and air-conditioning equipment.
– that are smart enabled controls;
EXAMPLE 2 Remote interfaces/control of burner operations.
– that are AC or DC powered controls with a rated voltage not exceeding 690 V AC or
600 V DC;
– used in, on, or in association with equipment that use electricity, gas, oil, solid fuel, solar
thermal energy, etc., or a combination thereof;
– utilized as part of a control system or controls which are mechanically integral with
multifunctional controls having non-electrical outputs;
– using NTC or PTC thermistors and to discrete thermistors, requirements for which are
contained in Annex J;
– that are mechanically or electrically operated, responsive to or controlling such
characteristics as temperature, pressure, passage of time, humidity, light, electrostatic
effects, flow, or liquid level, current, voltage, acceleration, or combinations thereof;
– as well as manual controls when such are electrically and/or mechanically integral with
automatic controls.
NOTE 3 Requirements for manually actuated mechanical switches not forming part of an automatic control are
contained in IEC 61058-1-1.
This document is applicable
– to a complete burner control system;
– to a separate programming unit;
– to a separate electronic high-voltage ignition source;
– to a separate flame detector, and
– to a separate high-temperature operation (HTO) detector.
– to a burner control system intended to be used in warm air heating appliances (furnaces)
where the appliance is equipped with an electromechanical differential pressure control to
monitor the difference of the combustion air pressure (Type 2.AL). This pressure control
provides a switch as an alternative to one of the two switching elements to directly de-
energize the safety relevant terminals.
This document does not apply to thermoelectric flame supervision controls; thermoelectric flame
supervision controls are covered by ISO 23551-6:2021.
IEC 60730-2-5:2026 © IEC 2026
This document also applies to electrical burner control systems intended exclusively for
industrial process applications e.g. those applications covered by ISO TC 244 (ISO 13577
series).
This document applies to controls powered by primary or secondary batteries, requirements for
which are contained within the standard.
This document applies to
– the inherent safety of automatic electrical burner control systems, and
– functional safety of automatic electrical burner control systems,
– automatic electrical burner control systems where the performance (for example the effect
of EMC phenomena) of the product can impair the overall safety and performance of the
controlled system,
– the operating values, operating times, and operating sequences where such are associated
with burner safety and to the testing of automatic electrical burner control systems used
in, on, or in association with, burners.
NOTE 4 Requirements for specific operating values, operating times and operating sequences are given in the
standards for appliances and equipment.
This document specifies the requirements for construction, operation and testing of automatic
electrical burner control systems used in, on, or in association with an equipment.
This document applies also to systems
– incorporating electronic devices,
– using NTC or PTC thermistors, additional requirements for which are contained in Annex J,
– to the electrical and functional safety of controls capable of receiving and responding to
communications signals. The signals can be transmitted to or received from external units,
connected wired or wireless, that can or can not be part of the burner control system.
This document does not
– take into account the response value of an automatic action of a control, if such a response
value is dependent upon the method of mounting the control in the equipment. Where a
response value is of significant purpose for the protection of the user, or surroundings, the
value defined in the appropriate equipment standard or as determined by the manufacturer
will apply;
– address the integrity of the output signal to the network devices, such as interoperability
with other devices unless it has been evaluated as part of the control system.
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
IEC 60068-2-6, Environmental testing - Part 2: Tests - Test Fc: Vibration (sinusoidal)
ISO/IEC 80079-20-1:2017, Explosive atmospheres - Part 20-1: Material characteristics for gas
and vapour classification - Test methods and data
IEC 60730-2-5:2026 © IEC 2026
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
3.2 Definitions of types of control according to purpose
3.2.19 Not applicable.
Additional definitions:
3.2.101
burner control system
system which includes a programming unit, a flame detector or, if applicable, an HTO
detector and can include an ignition source and/or ignition device and which monitors the
operation of fuel burners
Note 1 to entry: The various functions of the system can be in one or more housings.
3.2.102
flame detector
device which provides the programming unit with a signal indicating the presence or absence
of flame
Note 1 to entry: It includes the flame sensor and can include an amplifier and a relay for signal transmission. The
amplifier and relay can be in its own housing or combined with the programming unit.
3.2.103
flame sensor
device which senses the flame and provides the input signal to the flame detector amplifier
Note 1 to entry: Examples are optical sensors and flame electrodes (flame rods).
3.2.104
ignition source
electrical or electronic system component which provides energy to an ignition device
Note 1 to entry: It can be separated from or incorporated in the programming unit. Examples are ignition
transformers and electronic high-voltage generators.
3.2.105
ignition device
device mounted on or adjacent to a burner for igniting fuel at the burner
Note 1 to entry: Examples are pilot burners, spark electrodes and hot surface igniters.
3.2.106
programming unit
device which controls the burner operation in a declared sequence from start-up to shut-down
within declared timings and in response to signals from regulating, limiting and monitoring
devices
3.2.107
multitry system
system that allows more than one valve open period during its declared operating sequence
IEC 60730-2-5:2026 © IEC 2026
3.2.108
HTO detector
device which provides the programming unit with a signal indicating presence or absence of
HTO
Note 1 to entry: It includes the HTO-sensor and can include an amplifier and a relay for signal transmission. The
amplifier and relay can be in its own housing or combined with the programming unit.
3.2.109
HTO-sensor
device which senses the temperature of a surface or a medium within the combustion chamber
which is in direct contact with a flammable fuel-air mixture and provides a signal indicating
presence or absence of HTO
3.2.110
auto-ignition temperature
AIT
lowest temperature (of a surface) at which under specified test conditions an ignition of a
flammable gas or vapour in mixture with air or air-inert gas occurs
Note 1 to entry: Lowest temperature that ignites flammable gas without an additional external source of ignition like
spark or arc
[SOURCE: ISO/IEC 80079-20-1:2017,3.3, modified – Note 1 to entry was replaced.]
3.2.111
high-temperature operation
HTO
operation on the basis of auto-ignition temperature which ensures ignition and burning of fuel
Note 1 to entry: High-temperature operation is used e.g. in fuel cells (IEC 62282-3-100) and in industrial furnaces
and associated processing equipment (ISO 13577 series) where ignition and burning is detected by means of sensing
the temperature.
3.3 Definitions relating to the function of controls
3.3.29
maximum temperature
T
max
Replacement:
declared maximum continuous ambient temperature to which the burner control system is
intended to be exposed during normal operation
3.3.31
safety shut-down
Replacement:
de-energization of the main fuel flow means as the result of the action of a limiter, a cut-out or
the detection of an internal fault of the burner control system
Note 1 to entry: Safety shut-down can include additional actions by the burner control system.
Additional definitions:
3.3.101
automatic recycle
automatic repetition of the start-up procedure, without manual intervention, following loss of the
supervised flame and subsequent fuel supply shutoff
IEC 60730-2-5:2026 © IEC 2026
3.3.102
controlled shut-down
de-energization of the fuel flow means as a result of the opening of a control loop by a control
device such as a thermostat leading the burner control system to return to the start position
Note 1 to entry: Controlled shut-down can include additional actions by the burner control system.
3.3.103
flame detector response time
period of time between the loss of the sensed flame and the signal indicating the absence of
flame
3.3.104
flame detector operating characteristics
that function of the flame detector which indicates absence or presence of flame as the output
signal of the flame detector relating to the input signal
Note 1 to entry: Normally the input signal is provided by a flame sensor.
3.3.104.1
signal for presence of flame
S
minimum signal which indicates the presence of flame when there was previously no flame
3.3.104.2
signal for absence of flame
S
maximum signal which indicates the loss of flame
Note 1 to entry: S is less than S .
2 1
3.3.104.3
maximum flame signal
S
max
maximum signal which does not affect the timings or the sequence
3.3.104.4
signal for visible light flame simulation
S
minimum signal which indicates the presence of flame during the visible light flame simulation
test
3.3.105
self-checking flame detector
flame detector which checks for correct operation of the flame detector and its associated
electronic circuitry while the burner is in the running position
3.3.106
flame detector self-checking rate
frequency of the self-checking function of the flame detector (in number of operations per unit
of time)
3.3.107
flame failure lock-out time
flame failure response time
period of time between the signal indicating absence of flame and lock-out
IEC 60730-2-5:2026 © IEC 2026
3.3.108
flame failure re-ignition time
relight time
period of time between the signal indicating absence of flame and the signal to energize the
ignition device, during which the fuel supply is not shut off
3.3.109
flame signal
output signal of the flame detector
3.3.110
flame simulation
condition which occurs when the flame detector indicates the presence of flame when in reality
no flame is present
3.3.111
ignition time
period of time during which the ignition device is energized
3.3.112
lock-out
process in which the burner control system goes into one of the following lock-out conditions,
following safety shut-down
3.3.112.1
non-volatile lock-out
condition such that a restart can only be accomplished by a manual reset of the burner control
system and by no other cause
3.3.112.2
volatile lock-out
condition such that a restart can be accomplished by either a manual reset of the burner
control system or by an interruption of the power supply and its subsequent restoration
3.3.113
main flame establishing period
period of time between the signal to energize the main fuel flow means and the signal indicating
presence of the main burner flame
3.3.114
pilot flame establishing period
period of time between the signal to energize the pilot fuel flow means and the signal indicating
presence of the pilot flame
3.3.115
post-ignition time
period of the ignition time between the signal indicating presence of flame and the signal to
de-energize the ignition device
3.3.116
pre-ignition time
period of the ignition time between the signal to ignite and the signal to energize the fuel flow
means
IEC 60730-2-5:2026 © IEC 2026
3.3.117
proved igniter
proved igniter system
system in which the fuel flow means is energized only after the availability of sufficient energy
to ignite the fuel has been verified
Note 1 to entry: Examples are systems using spark supervision and those using proved hot surface igniters.
3.3.117.1
proved igniter operating value
signal which indicates that the proved igniter has the energy to ignite the fuel
3.3.117.2
igniter proving time
period of time between the signal to energize the proved igniter and the signal to energize the
fuel flow means
3.3.117.3
igniter failure response time
period of time between loss of the supervised proved igniter and the signal to de-energize the
fuel flow means
3.3.118
purge time
period during which air is introduced to displace any remaining air/fuel mixtures or products of
combustion from the combustion zone and flue ways
Note 1 to entry: No fuel is admitted during this period.
3.3.118.1
post-purge time
purge time that takes place immediately following the shutting off of the fuel supply
3.3.118.2
pre-purge time
purge time that takes place between initiation of a burner control sequence and the admission
of fuel to the burner
3.3.119
re-ignition
relight
process by which, following loss of the flame signal, the ignition device will be re-energized
without interruption of the fuel flow means
3.3.120
recycle time
period of time between the signal to de-energize the fuel flow means following the loss of flame
and the signal to begin a new start-up procedure
3.3.121
running position
position denoting that the main burner flame is established and supervised, or the burner is in
HTO and supervised
3.3.122
start position
position which denotes that the burner control system is not in the lock-out condition and has
not yet received the start signal, but can proceed with the start-up sequence if required
IEC 60730-2-5:2026 © IEC 2026
3.3.123
start signal
signal, for example from a thermostat, which releases the burner control system from its
start position
3.3.124
start-up lock-out time
period of time between the signal to energize the fuel flow means and lock-out
Note 1 to entry: For systems which control two separate fuel flow means, two different start-up lock-out times are
possible (first and second start-up lock-out times).
3.3.125
waiting time
period between the start signal and the signal to energize the ignition device
Note 1 to entry: For burners without fans, natural ventilation of the combustion chamber and the flue passages
normally takes place during this time.
3.3.126
valve open period
for multitry systems, period of time between the signal to energize the fuel flow means, and
the signal to de-energize the fuel flow means, if proof of the supervised burner flame is not
established
3.3.127
valve sequence period
for multitry systems, sum of all valve open periods prior to lock-out, if proof of the supervised
burner flame is not established
3.3.128
system restart
process by which, after a safety shut-down, a full start-up procedure is automatically repeated
3.3.129
reset from lock-out function
function that provides reset from lock-out allowing the burner control system to attempt a
restart
Note 1 to entry: The reset function can be performed by various electric/electronic (mobile) devices.
3.3.130
HTO detector response time
period of time between the temperature falling below the defined temperature limit for HTO and
the signal indicating the absence of HTO
3.3.131
HTO detector operating characteristics
that function of the HTO detector which indicates absence or presence of HTO as the output
signal of the HTO detector relating to the input signal
Note 1 to entry: Normally the input signal is provided by a HTO-sensor.
3.3.132
HTO signal
output signal of the HTO detector
IEC 60730-2-5:2026 © IEC 2026
3.5 Definitions of types of control according to construction
Additional definitions:
3.5.101
system for permanent operation
system which is intended to remain in the running position for longer than 24 h without
interruption
3.5.102
system for non-permanent operation
system which is intended to remain in the running position for less than 24 h
Additional definitions:
3.101 Definitions relating to the type of burner
3.101.1
continuous ignition
type of ignition which, once placed in operation, is intended to remain energized continuously
until it is manually interrupted
3.101.2
continuous pilot
pilot which, once placed in operation, is intended to remain ignited continuously until it is
manually interrupted
3.101.3
direct ignition
type of ignition which is applied directly to the main burner, without the use of a pilot
3.101.4
expanding pilot
form of continuous pilot where the pilot flame is increased or expanded when required to
ignite the main burner and reduced either immediately after main burner ignition, or after the
main flame is shut off
3.101.5
full rate start
condition in which the main burner ignition and subsequent flame supervision occur at full
fuel rate
3.101.6
intermittent ignition
type of ignition which is energized when an appliance is called on to operate and which remains
continuously energized during each period of main burner operation and where the ignition is
de-energized when the main burner operating cycle is completed
3.101.7
intermittent pilot
pilot which is automatically ignited when an appliance is called on to operate and which remains
continuously ignited during each period of main burner operation and where the pilot is
automatically extinguished when each main burner operating cycle is completed
3.101.8
interrupted ignition
type of ignition which is energized prior to the admission of fuel to the main burner and which
is de-energized when the main flame is established
IEC 60730-2-5:2026 © IEC 2026
3.101.9
interrupted pilot
pilot which is automatically ignited prior to the admission of fuel to the main burner and which
is automatically extinguished when the main flame is established
3.101.10
low rate start
condition in which main burner ignition occurs at low fuel rate
Note 1 to entry: Once ignition at low fuel rate occurs and the flame is proved, full main burner fuel rate can be
admitted.
3.101.11
pilot
flame, smaller than the main flame, which is utilized to ignite the main burner or burners
4 General
This clause of Part 1 is applicable except as follows:
4.3 General notes on tests
4.3.2 Conditions of test
4.3.2.1 Replacement:
Unless otherwise specified, the system and each system component are tested as delivered,
having been mounted as declared in Table 1, requirement 24, in the most unfavourable position
when there is more than one position.
When a separate system component is submitted, the manufacturer shall provide those other
system components which can be necessary to perform the relevant tests.
4.3.2.7 Not applicable.
4.3.3 Samples required
4.3.3.1 Addition:
The tests of Clause 26 shall be conducted on a new sample.
4.3.4 Instructions for test
4.3.4.2 According to rating
4.3.4.2.1 Modification:
Delete "and those for AC/DC at the more unfavourable supply.".
4.3.4.2.4 Not applicable.
4.3.4.2.6 Replacement:
For systems marked or declared for more than one rated voltage or rated current, the tests
of Clause 19 are made at the rated voltage and associated current (or vice versa) that produces
the most unfavourable combination.
IEC 60730-2-5:2026 © IEC 2026
5 Required technical information
This clause of Part 1 is applicable except as follows:
5.2 Methods of providing technical information
5.2.10
Table 1 – Required technical information and methods of providing these information
Clause or
Information Method
subclause
Modifications:
15 Temperature limits of the system and system components if T is lower 16.5, 16.7 D or E
min
than 0 °C, or T other than 60 °C
max
C
16 Temperature limits of mounting surfaces (T ) 16.1, 19.3
s
X
19 Number of cycles of actuation (M) for each manual action 19.15.104
Number of cycles of actuation (M) for each manual action. For 19.15.104,
the number of manual actions for lock-out re-set is a minimum of 6 000.
X
20 Number of automatic cycles (A) for each automatic action. 9.103.4,
Clause 19,
Annex Q,
Annex R,
Annex S,
Annex T
21 Not applicable
31 Not applicable
32 Not applicable
34 Additional features of type 2 actions 9.4 D or E
35 Not applicable
36 Not applicable
38 Not applicable
40 Operating sequence 3.3.13, D or E
9.4.3
42 Not applicable
47 Not applicable
Additional items:
101 Maximum flame detector response time (if applicable) 3.3.103, D
9.3.103,
9.4.3,
Clause 17
102 Minimum flame detector self-checking rate (if applicable) for permanent 3.3.106, D
operation (Type 2.AD) 9.3.103,
9.3.104.2,
Clause 17
103 Maximum flame failure lock-out time or Maximum flame failure response 3.3.107, D
9.3.103,
time (if applicable)
9.3.104.1,
Clause 17
104 Maximum flame failure re-ignition time (if applicable) 3.3.108, D
9.3.103,
Clause 17
105 Maximum ignition time (if applicable) 3.3.111, D
Clause 17
IEC 60730-2-5:2026 © IEC 2026
Clause or
Information Method
subclause
106 Maximum main flame establishing period (if applicable) 3.3.113, D
Clause 17
107 Maximum pilot flame establishing period (if applicable) 3.3.114, D
Clause 17
108 Maximum post-ignition time (if applicable) 3.3.115, D
Clause 17
109 3.3.116, D
Maximum pre-ignition time (if applicable)
Clause 17
110 Void
111 3.3.118.1, D
Minimum post-purge time (if applicable)
Clause 17
112 3.3.118.2, D
Minimum pre-purge time (if applicable)
Clause 17
3.3.120, D
Minimum recycle time (if applicable)
Clause 17
114 3.3.124, D
Maximum start-up lock-out time (if applicable)
Clause 17
115 3.3.125, D
Minimum waiting time (if applicable)
Clause 17
116 3.5, 3.101 D
Type of burner
117 Type of pilot such as continuous pilot or expanding pilot or intermittent 3.101.2, D
3.101.4,
pilot or interrupted pilot
3.101.7,
3.101.9,
3.101.11
118 Type of ignition 3.101.1, D
3.101.3,
such as continuous ignition or direct ignition or full rate start or
3.101.5
intermittent ignition or interrupted ignition or low rate start
103 3.101.6,
3.101.8
3.101.10
119 Void
120 Means for protecting setting of timings 9.3.4 X
121 Void
122 Resistance to vibration 19.15.102 D
123 S (signal for presence of flame) 3.3.104.1, D
1 103
H.17.101.2,
H.17.101.3
124 S (signal for absence of flame) 3.3.104.2, D
2 103
H.17.101.2,
H.17.101.3
,
125 S (maximum flame
...