FprEN IEC 63508:2026

SLOVENSKI STANDARD
oSIST prEN IEC 63508:2024
01-junij-2024
CDD baza podatkov - Odklopniki in podobna oprema za gospodinjsko uporabo
CDD database - Circuit-breakers and similar equipment for household use
Base de données CDD - Disjoncteurs et appareillage similaire pour usage domestique
Ta slovenski standard je istoveten z: prEN IEC 63508:2024
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
35.240.99 Uporabniške rešitve IT na IT applications in other fields
drugih področjih
oSIST prEN IEC 63508:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 63508:2024
oSIST prEN IEC 63508:2024
23E/1349/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63508 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-04-05 2024-06-28
SUPERSEDES DOCUMENTS:
23E/1327/CD, 23E/1345/CC
IEC SC 23E : CIRCUIT-BREAKERS AND SIMILAR EQUIPMENT FOR HOUSEHOLD USE
SECRETARIAT: SECRETARY:
Italy Mr Giovanni Cassinelli
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

SC 3D,TC 23,SC 23A,SC 23B,SC 23H,SC 23K,TC
Other TC/SCs are requested to indicate their interest, if any,
in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE 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:
CDD Database - Circuit-breakers and similar equipment for household use

PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
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.

oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 2 23E/1349/CDV

1 INTRODUCTION
3 The growing use of protection devices (e.g. miniature circuit-breakers as defined in IEC 60898-1), and
4 the need to go toward more digital tools and processes requires the description of such devices to be
5 made available in the most adequate digital format.
6 To serve as a reference in this effort of standardisation, the IEC provides a support for gathering all
7 contributions for devices descriptions under the IEC Common Data Dictionary (IEC CDD).
8 Such a work at IEC level aims to provide for the protection devices an unambiguous semantic,
9 consistent with its product standard, made available for use on the market by the various stakeholders.
10 The intended benefits of this document are to:
11 • reduce the costs and efforts in mapping data for each customer request;
12 • optimize the workflow of B2B exchanges;
13 • minimize duplication of articles in customer inventories and in databases;
14 • minimize losses and misinterpretation of data during exchanges;
15 • facilitate the selection of a product, especially regarding reliability and safety;
16 • give access to product data everywhere regardless of country, language and culture;
17 • provide product data related to environmental aspects such as environmental declaration;
18 • contribute to the fast growth of e-business by simplifying the development of
19 - e-catalogue allowing the differentiation of products performances, certificates, etc;
20 - e-commerce: use of electronic networks to exchange information, products, services and
21 payments for commercial and communication purposes between individuals (consumers) and
22 businesses, and between businesses themselves.
23 • enable new e-business models
25 The output of this document is a reference dictionary for protection devices considered in sub-
26 committee 23E for use in e-commerce, in software and in any application for product selection.
27 This work is done in close collaboration between SC 23E and SC 3D which in charge of the
28 maintenance of the application IEC CDD.
30 The modifications applied to the CD version are about:
31 - information arrangement in the document. Some elements (reminders) are moved to a
32 new annex
33 - change of class names applied to KDA021, KDA022, KDA023
34 - specialized blocks are removed from the blocks list
35 - new properties (KDB021 & KDD108), representing the ‘’number of switched poles’’,
36 were created and replace properties that were reused from TC 121 (number of poles)
37 - two properties from TC 121 are added to complete the classes descriptions (provision
38 for locking, rated impulse withstand voltage)
oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 3 23E/1349/CDV

41 1. Scope
42 The purpose of this document is to draft product classes and properties, representing the MCB
43 (Miniature Circuit-Breaker), to become a part of the IEC 63508 DB. It includes data needed for product
44 selection as well as data needed for engineering.
45 This IEC 63508 DB intends, as a contribution to the IEC Common Data Dictionary, to be used by
46 catalogue consortia, other database standards and software as a data reference for Circuit-breakers
47 and similar equipment for household use.
48 Note: In the future, it is intended to extend the IEC 63508 DB to other type of products managed by IEC/SC 23E.
50 2. Normative references
51 IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
52 IEC 60529: 2013 AC1
54 IEC 60715:2017, Dimensions of low-voltage switchgear and controlgear – Standardized mounting on
55 rails for mechanical support of switchgear, controlgear and accessories
57 IEC 60898-1:2015, Electrical accessories – Circuit-breakers for overcurrent protection for household
58 and similar installations – Part 1: Circuit-breakers for a.c. operation
59 IEC 60898-1:2019 Amd1
60 IEC 60898-1:2020 AC1
62 IEC 60947-2:2016, Low-voltage switchgear and controlgear – Part 2: Circuit-breakers
63 IEC 60947-2:2019 Amd1
64 IEC 60947-2:2019 AC1
66 IEC 61360-1, Standard data element types with associated classification scheme for electric
67 items – Part 1: Definitions – Principles and methods
69 IEC 61360-4 DB - IEC CDD (Common Date Dictionary)
71 IEC 62683-1: 2017, Low-voltage switchgear and controlgear – Product data and properties for
72 information exchange – Part 1: Catalogue data
74 CLC TR 50473: 2007, Recommendations for dimensional co-ordination between enclosures and built-
75 in devices for rail fixing for household and similar installations
77 3. Terms and definitions
78 3.1.
79 attribute
80 data element for the computer-sensible description of a property, a relation or a class
81 Example The name of a property, the code of a class, the measure unit in which values of a property are provided.
82 Note 1 to entry: An attribute describes only one single detail of a property, of a class or of a relation. SOURCE: IEC 61360-1
84 3.2.
85 block (of properties)
86 collection of properties describing one common aspect of the device class
88 Note 1 to entry: A block is a feature class in the sense of IEC 61360-1 and ISO 13584-42.
89 Example: Diagnostic functions, control circuit.
90 SOURCE: IEC 62683-1
92 3.3.
93 class
94 abstraction of a set of similar products
96 Note 1 to entry: A product that complies with the abstraction defined by a class is called a class member.
97 Note 2 to entry: A class is an intentional concept that can take different extensional meanings in different contexts.

oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 4 23E/1349/CDV

98 Note 3 to entry: Classes are structured by class inclusion relationships.
99 SOURCE: IEC 61360-1
101 3.4.
102 enumeration
103 list of named constants called enumerators, each enumerator name in the enumeration being
104 unambiguous
105 SOURCE: IEC 61360-1
107 3.5.
108 property
109 data element type
110 defined parameter suitable for the description and differentiation of a specific characteristic describing an
111 aspect of device class
113 Note 1 to entry: A property can have attributes such as code, version, and revision.
114 Note 2 to entry: The specification of a property can include predefined choices of values.
115 SOURCE: IEC 62683-1
117 3.6.
118 IEC Common Data Dictionary
119 IEC CDD
120 IEC CDD is an International Standard (IEC 61360-4 DB) and serves as a common product data
121 dictionary for all industrial/technical domains (electrotechnical and non-electrotechnical; e.g.
122 industry, building, energy, healthcare, …) based on the methodology and the information model of
123 IEC 61360 series, and provides
124 • unambiguous identification of classes and properties, and their relations;
125 • commonly accepted terminology and definitions based on accepted sources such as IEC
126 International Standards, other International Standards, industry standards, or public
127 authorities;
128 • hierarchies of concepts enabling users to appropriately characterize their products and
129 services;
130 • relevant conditions and constraints, if necessary, on possible values of characteristics;
131 • technical representation of concepts including units and data types and their identification.
135 4. Data formats description
136 IEC 61360 series are the reference documents describing the different formats that are intended to be
137 used for a product’s description.
138 To assist readers of this standard, a selection of useful definitions for data formats and concepts (taken
139 from IEC 61360-1) is available in annex A.
141 5. Overview of the structure of this domain

oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 5 23E/1349/CDV

142 This document aims to initiate a domain to become a contribution to the IEC CDD.
143 This domain is a collection of properties and blocks of properties to describe the products identified in
144 this first approach focused on miniature circuit-breakers.
145 This domain will be completed in a further stage by properties necessary to describe other products
146 from IEC SC 23E.
147 It is noted that another domain named “Low voltage switchgear and controlgear (IEC 62683)” is
148 published in IEC CDD by IEC/TC 121. This domain does not include miniature circuit-breakers (MCB).
149 To avoid duplicated properties it is intended to re-use existing properties and blocks from the domain
150 “Low voltage switchgear and controlgear (IEC 62683)” in the new domain for miniature circuit -breakers,
151 wherever applicable. Such re-used blocks or properties have identifiers (ID) starting with ACC or ACE.
153 6. Device classes
154 6.1. Device class attributes
155 The attributes of the device class shall follow IEC 61360-1.
156 The following attributes of a device class are considered in this standard: identifier, preferred name,
157 definition, synonymous name and source document.
158 NOTE The synonymous names are limited to those necessary to avoid confusion when selecting a device class.
160 6.2. Classification of circuit-breakers and similar equipment for household use
161 The following table gives the classification of circuit-breakers and similar equipment for household use
162 domain based on the corresponding product standards. The class name column is structured in four
163 levels of hierarchy using indent alignments.
164 Table 1 – Circuit-breakers and similar equipment for household use classification
Class preferred name Code
Definition Source
(Class sheet) (Class ID)
domain covering the following devices:
Circuit-breakers and
- circuit-breakers and residual current devices of rated currents not
similar equipment
exceeding 125 A and rated voltages not exceeding 440 V for
for household use
protection against overcurrent and/or against electric shock in
domain
domestic and similar installations,

- residual current monitors (RCM) for household and similar applications,
- circuit-breakers for equipment of rated currents not exceeding 125 A
and rated voltages not exceeding 440 V designed to protect
KDA001
equipment for use in domestic and similar installations,
- control and protection devices for electric vehicle supplies,
- arc fault detection devices (AFDD) of rated currents not exceeding 125
A and rated voltages not exceeding 440 V for household and similar
uses.
- guidance for additional functions for protection devices
- automatic reclosing devices
- power frequency overvoltage protection devices
Circuit-breakers and
similar equipment
classification of circuit-breakers and similar equipment for household use
for household use
KDA010
– classes head number
classes head
oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 6 23E/1349/CDV

Class preferred name Code
Definition Source
(Class sheet) (Class ID)
Miniature circuit-
breakers for
overcurrent
circuit-breakers for domestic and similar purpose of rated currents not
protection for
exceeding 125 A and rated voltages not exceeding 440 V for protection KDA020
household and
of wiring against overcurrents in domestic and similar installations
similar
installations
classes
mechanical switching device for AC application for use by ordinary IEC 60050-
AC miniature
person, capable of making, carrying and breaking currents under normal 441:1984, 441-14-
circuit-breaker for
circuit conditions and also making, carrying for a specified time and 20
use by ordinary
breaking currents under specified abnormal circuit conditions such as
persons
KDA021
those of short-circuit
Note: ordinary person which is neither a skilled person nor an instructed
person. IEV 195-04-03
mechanical switching device for AC application for use by skilled or
AC miniature
instructed person, capable of making, carrying and breaking currents
circuit-breaker for
under normal circuit conditions and also making, carrying for a specified
use by skilled
time and breaking currents under specified abnormal circuit conditions
persons only
such as those of short-circuit
Note 1: skilled person is a person with relevant education and
KDA022
experience to enable him or her to perceive risks and to avoid hazards
that electricity can create. IEV 195-04-01
Note 2: instructed person is a person adequately advised or supervised
by electrically skilled persons to enable him or her to perceive risks and
to avoid hazards that electricity can create. IEV 195-04-02
mechanical switching device for AC application for use by ordinary or
AC miniature
skilled or instructed person, capable of making, carrying and breaking
circuit-breaker for
currents under normal circuit conditions and also making, carrying for a
use by ordinary or
specified time and breaking currents under specified abnormal circuit
skilled persons
conditions such as those of short-circuit
Note 1: ordinary person which is neither a skilled person nor an
instructed person. IEV 195-04-03
KDA023
Note 2: skilled person is a person with relevant education and
experience to enable him or her to perceive risks and to avoid hazards
that electricity can create. IEV 195-04-01
Note 3: instructed person is a person adequately advised or supervised
by electrically skilled persons to enable him or her to perceive risks and
to avoid hazards that electricity can create. IEV 195-04-02
oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 7 23E/1349/CDV

167 7. Block of properties
168 A block of properties gathers properties necessary to describe a device.
169 A property within a block shall describe one common aspect covered by the definition of this block.
170 Blocks are defined at generic level and at specialized level to describe a specific version of the device.
171 The list of blocks of properties is defined in the following table.
173 Table 2 – Library of blocks used in the device classes
Block preferred name Code
Definition Source
(Class sheet) (Class ID)
Circuit-breakers and
heading number for blocks of
similar equipment for
properties to describe all type of KDA011
household use – blocks
products within this domain
head number
Circuit-breakers and
heading number for specialised
similar equipment for
blocks of properties to describe
household use - KDE005
all type of products within this
specialised blocks
domain
head number
information necessary for
Identification unambiguous identification of IEC 62683-1 ACC011
the device
General technical data
general technical aspects of the
KDA220
device
all the conductive parts of a
Main circuit KDA221
switching device included in the

circuit which it is designed to close

or open
short-circuit conditions, stated by

the manufacturer, which the device
Short-circuit KDA222
can make, withstand or break
satisfactorily
release which causes a mechanical
KDA223
switching device to open when the
Tripping characteristics
current in the release exceeds a

predetermined value
all the conductive parts of the
Control and auxiliary device which are intended to be
KDA224
circuits included in a circuit other than the
main circuit
Installation, mounting
KDA225
physical information of the device
and dimensions
for installation
terminals, screws or other parts,

used for the electrical connection of
Connection facilities KDA226
conductors of external circuits of

the device
physical conditions such as
ambient temperature, pressure,
KDA227
Environmental radiation, humidity, chemical spray

conditions expected as normal operating

conditions or resulting from
postulated initiating events
Product certificates KDA228
conformity of a device with
specified requirements and
and standards
oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 8 23E/1349/CDV

Block preferred name Code
Definition Source
(Class sheet) (Class ID)
compliance with recognized
product standards
175 The purpose of the tables is to list the generic block at the top of the ontology. Specialisation blocks
176 (with relevant properties selected from generic blocks) used for the actual construction of the
177 database are not listed.
179 7.1. MCB (Miniature Circuit-Breaker)
180 7.1.1. General
181 Table 3 to Table 5 provide the lists of properties for each specialized class.
183 7.1.2. AC miniature circuit-breaker for use by ordinary persons
185 Table 3 - AC miniature circuit-breaker for use by ordinary persons
Blocks and
Definition class Code
Property preferred name Comment
(Class ID) (Property ID)
(Property sheet)
AC miniature circuit-breaker for use by
KDA021
ordinary persons
Identification ACC011
global Trade Item Number (GTIN) ACE101
manufacturer name ACE102
manufacturer product number ACE103
product family ACE104
product name ACE105
supplier name ACE106
supplier product number ACE107
product online information URL ACE108
customs tariff number ACE109
General technical data KDA220
degree of protection of front face ACE247
kind of current ACE601
provision for locking ACE243
Isolation function ACE204
Main circuit KDA221
number of switched poles  KDB021
number of protected poles ACE410
rated current  ACE424
rated operational voltage, a.c. ACE457
rated supply frequency ACE532
rated insulation voltage KDB002
power losses per pole KDB003
oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 9 23E/1349/CDV

Blocks and
Definition class Code
Property preferred name Comment
(Class ID) (Property ID)
(Property sheet)
rated impulse withstand voltage ACE460
Short-circuit KDA222
rated short-circuit capacity at 230 V (I ) KDB004
cn
rated short-circuit capacity at 400 V (I ) KDB005
cn
energy limiting class according to EN
KDB006
60898-1
rated making and breaking capacity of an
KDB007
individual pole (I )
cn1
Tripping characteristics KDA223
reference calibration temperature KDB008
range of instantaneous tripping current KDB009
derating of tripping characteristic based on
KDB010
temperature
Control and auxiliary circuits KDA224
additional equipment possible KDB011
Installation, mounting and dimensions KDA225
mounting onto standard rail ACE804
height of the device ACE801
width in number of modular spacings  KDB012
mounting depth of the modular device KDB013
product mass ACE808
Connection facilities KDA226
clamping unit of main circuit ACE852
dedicated comb busbar terminal KDB014
double terminal  KDB015
cross-section of rigid conductor  ACE867
cross-section of flexible conductor  ACE865
type of line side terminals KDB016
type of load side terminals KDB017
Environmental conditions KDA227
ambient air temperature ACE440
pollution degree KDB018
Product certificates and standards KDA228
environmental declaration ACE903
product standards ACE901
conformity marks KDB019
189 7.1.3. AC miniature circuit-breaker for use by skilled persons only

oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 10 23E/1349/CDV

191 Table 4 - AC miniature circuit-breaker for use by skilled persons only
Property
Blocks and properties Class ID Comment
ID
AC miniature circuit-breaker for use by skilled persons only KDA022
Identification ACC011
global Trade Item Number (GTIN) ACE101
manufacturer name ACE102
manufacturer product number ACE103
product family ACE104
product name ACE105
supplier name ACE106
supplier product number ACE107
product online information URL ACE108
customs tariff number ACE109
General technical data KDA220
degree of protection of front face ACE247
kind of current ACE601
degree of protection of terminals ACE248
provision for locking ACE243
isolating function ACE204
Main circuit KDA221
number of switched poles  KDB021
number of protected poles ACE410
rated current  ACE424
rated operational voltage, a.c. ACE457
rated supply frequency ACE532
rated insulation voltage KDB002
rated operational voltage for IT systems ACE721
rated impulse withstand voltage ACE460
overvoltage category KDB020
Short-circuit KDA222
rated ultimate short-circuit breaking capacity, a.c., 230 V (I ) ACE716
cu
rated ultimate short-circuit breaking capacity, a.c., 400 V (I ) ACE702
cu
rated service short-circuit breaking capacity, a.c., 230 V (Ics) ACE715
rated service short-circuit breaking capacity, a.c., 400 V (I ) ACE701
cs
interrupting rating, a.c., 120 V ACE700
interrupting rating, a.c., 480 V ACE703
Tripping characteristics KDA223
reference temperature of non-compensated release ACE744
instantaneous short-circuit current setting ACE747
Control and auxiliary circuits KDA224
additional equipment possible KDB011
Installation, mounting and dimensions KDA225
mounting onto standard rail ACE804

oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 11 23E/1349/CDV

Property
Blocks and properties Class ID Comment
ID
height of the device ACE801
width in number of modular spacings  KDB012
mounting depth of the modular device KDB013
product mass ACE808
Connection facilities KDA226
clamping unit of main circuit ACE852
dedicated comb busbar terminal KDB014
double terminal  KDB015
cross-section of rigid conductor  ACE867
cross-section of flexible conductor  ACE865
Environmental conditions KDA227
ambient air temperature ACE440
Product certificates and standards KDA228
environmental declaration ACE903
product standards ACE901
certificates and approvals ACE902
194 7.1.4. AC miniature circuit-breaker for use by ordinary or skilled persons
195 Table 5 - AC miniature circuit-breaker for use by ordinary or skilled persons
Property
Blocks and properties Class ID Comment
ID
AC miniature circuit-breaker for use by ordinary or skilled
persons
KDA023
Identification (common part) ACC011
global Trade Item Number (GTIN) ACE101
manufacturer name ACE102
manufacturer product number ACE103
product family ACE104
product name ACE105
supplier name ACE106
supplier product number ACE107
product online information URL ACE108
customs tariff number ACE109
General technical data KDA220
degree of protection of front face ACE247
kind of current ACE601
degree of protection of terminals ACE248
provision for locking ACE243
isolating function  ACE204
Main circuit KDA221
number of switched poles  KDB021

oSIST prEN IEC 63508:2024
IEC CDV 63508 © IEC 2024 12 23E/1349/CDV

Property
Blocks and properties Class ID Comment
ID
number of protected poles ACE410
rated current  ACE424
rated operational voltage, a.c. ACE457
rated supply frequency ACE532
rated insulation voltage KDB002
power losses per pole KDB003
rated operational voltage for IT systems ACE721
rated impulse withstand voltage ACE460
overvoltage category KDB020
Short-circuit KDA222
rated short-circuit capacity at 230 V (Icn) KDB004
rated short-circuit capacity at 400 V (I ) KDB005
cn
energy limiting class according to EN 60898-1 KDB006
rated making and breaking capacity of an individual pole (I ) KDB007
cn1
rated ultimate short-circuit breaking capacity, a.c., 230 V (I ) ACE716
cu
rated ultimate short-circ
...