prEN IEC 60947-5-3:2025

SLOVENSKI STANDARD
01-april-2025
Nizkonapetostne stikalne in krmilne naprave - 5-3. del: Krmilne naprave in stikalni
elementi - Zahteve za približevalne naprave z določenim obnašanjem ob pogojih
za okvare (PDDB)
Low-voltage switchgear and controlgear - Part 5-3: Control circuit devices and switching
elements - Requirements for proximity devices with defined behaviour under fault
conditions (PDDB)
Niederspannungsschaltgeräte - Teil 5-3: Steuergeräte und Schaltelemente -
Anforderungen für Näherungsschalter mit definiertem Verhalten unter
Fehlerbedingungen (PDDB)
Appareillage à basse tension - Partie 5-3: Appareils et éléments de commutation pour
circuits de commande - Exigences pour dispositifs de détection de proximité à
comportement défini dans des conditions de défaut (PDDB)
Ta slovenski standard je istoveten z: prEN IEC 60947-5-3:2025
ICS:
29.120.40 Stikala Switches
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

121A/640/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60947-5-3 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-02-07 2025-05-02
SUPERSEDES DOCUMENTS:
121A/614/CD, 121A/624A/CC
IEC SC 121A : LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR
SECRETARIAT: SECRETARY:
France Mr Michaël LAHEURTE
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 44,TC 65
ASPECTS CONCERNED:
Electromagnetic Compatibility,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.
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Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clau ses to be
included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC c lauses. (SEE
AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Low-voltage switchgear and controlgear – Part 5-3: Control circuit devices and switching elements –
Requirements for proximity devices with defined behaviour under fault conditions (PDDB)

PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
SC121A officers are supporting the circulation of the CDV for IEC 60947-5-3 ED3; experts are kindly asked to indicate the
line number(s) when commenting

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.

121A/640/CDV – 2 – IEC CDV 60947-5-3 © IEC 2025
CONTENTS
FOREWORD . 8
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 12
3.1 General terms and definitions . 12
3.2 Terms and definitions concerning Annex B . 15
3.3 Symbols and abbreviations . 17
4 Classification . 19
4.1 General . 19
4.2 Classification according to sensing means . 19
4.3 Classification according to the mechanical installation . 19
4.4 Classification according to the construction form and size . 19
4.5 void. 19
4.6 Classification according to type of output . 19
4.6.1 General . 19
4.6.2 Interface Type . 19
4.7 Classification according to method of connection . 20
4.8 Electrical Equipment Class . 20
4.9 Functional Safety Device Types . 20
4.9.1 General . 20
4.9.2 Functional safety device type 1 . 20
4.9.3 Functional safety device type 2 . 20
4.9.4 Functional safety device type 3 . 21
4.10 Interlocking Device Type . 21
4.10.1 General . 21
4.10.2 Interlocking Device Type 3. 21
4.10.3 Interlocking Device Type 4. 21
4.11 Target Coding . 21
4.11.1 General . 21
4.11.2 Coding Level low . 21
4.11.3 Coding Level medium . 21
4.11.4 Coding Level high . 21
4.12 Operating Mode . 22
4.12.1 General . 22
4.12.2 Operating Mode TP (Target Present) . 22
4.12.3 Operating Mode TA (Target Absent) . 22
4.12.4 Combined operating Mode TP&TA . 22
5 Characteristics . 22
5.1 General . 22
5.1.1 Safety function. 22
5.2 Safety related switching distances . 23
5.2.1 General . 23
5.2.2 Switching distance s . 23
As
5.2.3 Switching distance s . 24
Ps
IEC CDV 60947-5-3 © IEC 2025 – 3 – 121A/640/CDV
5.2.4 Sensing means with operating range . 25
5.3 Rated and limiting values for the proximity switch and switching element(s) . 25
5.3.1 Voltages . 25
5.3.2 Currents . 26
5.3.3 Rated supply frequency . 26
5.3.4 void . 26
5.3.5 Normal load and abnormal load characteristics . 26
5.3.6 Short-circuit characteristics . 26
5.3.7 OFF-state of the OSSD . 27
5.3.8 Interface Type A0, B0, C0, C1, C2, C3 . 27
5.4 Utilization categories for the switching element . 27
5.5 Safety related characteristics . 28
5.5.1 Proximity device with defined behaviour . 28
5.5.2 Safety integrity . 28
5.6 Electrical Equipment Classes . 29
5.6.1 Electrical Equipment Class III . 29
6 Product information . 29
6.1 Nature of information – Identification . 29
6.2 Marking . 30
6.2.1 General . 30
6.2.2 Terminal identification and marking . 30
6.2.3 Marking of Electrical Equipment Class II . 30
6.2.4 Marking of Electrical Equipment Class III . 30
6.3 Instructions for installation, operation, and maintenance . 30
6.3.1 General . 30
6.3.2 Information for PDDB of Electrical Equipment Class III . 31
6.3.3 Diagnostic test information . 31
6.3.4 Information to the interface types . 31
6.4 Environmental information . 32
6.4.1 Environmentally conscious design process (ECD process) . 32
6.4.2 Procedure to establish material declaration . 32
7 Normal service, mounting and transport conditions . 32
7.1 Normal service conditions . 32
7.2 Conditions during transport and storage . 32
7.3 Mounting . 32
8 Constructional and performance requirements . 32
8.1 Constructional requirements . 32
8.1.1 Materials . 32
8.1.2 Current-carrying parts and their connections . 32
8.1.3 Clearance and creepage distances . 32
8.1.4 Actuation . 32
8.1.5 Void . 33
8.1.6 Void . 33
8.1.7 Terminals . 33
8.1.8 Vacant . 33
8.1.9 Provision for protective earthing . 33
8.1.10 Enclosure Degree of Protection . 33

121A/640/CDV – 4 – IEC CDV 60947-5-3 © IEC 2025
8.1.11 Requirements for proximity switches with integrally connected cables . 33
8.1.12 Electrical Equipment Class II . 33
8.1.13 Chemical stress .
...