EN IEC 60393-4:2023

Potentiometers for use in electronic equipment - Part 4: Sectional specification: Single-turn rotary power potentiometers

IEC 60393-4:2023 is applicable to single-turn rotary power potentiometers wire-wound technology. Enamelled, cemented, moulded, enclosed. This specification is applicable to rotary potentiometers with nominal dissipation in excess of 10 W, the resistive element of which consists of a wire or a wound tape. All the potentiometers specified by this specification are slider-driven without reduction. Their stroke less than 360° is limited by stops. This document specifies preferred ratings and characteristics and selects from IEC 60393-1, appropriate quality assessment procedures, tests and measuring methods. It provides general performance requirements for this type of potentiometer. This document gives the minimum performance requirements and test severities. Annex A lists the letters and symbols used in the clauses of this document. This edition includes the following significant technical changes with respect to the previous edition: a) the document structure has been organized to follow new sectional specification structure decided in TC 40; b) the information on the assessment level EZ and FZ (zero nonconforming) has been revised.

Potentiometer zur Verwendung in Geräten der Elektronik - Teil 4: Rahmenspezifikation: Hochbelastbare Einfach-Drehpotentiometer

Potentiomètres utilisés dans les équipements électroniques - Partie 4: Spécification intermédiaire: Potentiomètres rotatifs monotours à forte dissipation

L’IEC 60393-4:2023 s’applique à la technologie bobinée des potentiomètres rotatifs monotours à forte dissipation (potentiomètres émaillés, cémentés, moulés ou sous enveloppe). La présente spécification s’applique aux potentiomètres rotatifs de dissipation nominale supérieure à 10 W, dont l’élément résistif est constitué d’un fil ou d’une bande enroulée. Tous les potentiomètres spécifiés par la présente spécification sont entraînés par coulisseau sans réduction. Leur course inférieure à 360° est limitée par des butées. Le présent document spécifie des valeurs assignées et des caractéristiques préférentielles et choisit, à partir de l’IEC 60393-1, des procédures d’assurance de la qualité, des essais et des méthodes de mesure appropriés. Il donne des exigences générales de performance pour ce type de potentiomètre. Le présent document fixe les exigences minimales de performance et les sévérités des essais. L’Annexe A liste les lettres et symboles utilisés dans les articles du présent document. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) l’organisation de la structure du document suit la nouvelle structure de spécification intermédiaire décidée au sein du TC 40; b) les informations sur le niveau d’évaluation EZ et FZ (zéro non conforme) ont été révisées.

Potenciometri za elektronsko opremo - 4. del: Področna specifikacija: enoobratni vrtljivi potenciometri moči (IEC 60393-4:2023)

Standard IEC 60393-4:2023 se uporablja za tehnologijo žičnega navitja enoobratnih vrtljivih potenciometrov moči. Emajlirani, cementirani, vliti, oklopljeni.
Ta specifikacija se uporablja za vrtljive potenciometre z nazivno presežno razpršenostjo 10 W, katerih uporabni element sestavlja žica ali navit trak. Vsi potenciometri, določeni v tej specifikaciji, so z drsnim pogonom brez redukcije. Njihov gib, manjši od 360°, je omejen s prekinitvami.
Ta dokument določa zaželene ocene, lastnosti in izbire iz standarda IEC 60393-1, ustrezne postopke za oceno kakovosti, preskuse in merilne metode. Vsebuje splošne zahteve glede zmogljivosti za ta tip potenciometra.
Ta dokument podaja minimalne zahteve glede zmogljivosti in preskusne stopnje. V dodatku A so navedene črke in simboli, ki so uporabljeni v točkah tega dokumenta.
Ta izdaja v primerjavi s prejšnjo vključuje naslednje pomembne tehnične spremembe:
a) struktura dokumenta je organizirana, da sledi novi strukturi področne specifikacije iz TC 40;
b) informacije o stopnji ocene EZ in FZ (nič neskladnosti) so spremenjene.

General Information

• Status: Published
• Publication Date: 07-Dec-2023
• ICS: 31.040.20 - Potentiometers, variable resistors
• Technical Committee: CLC/SR 40 - Capacitors and resistors for electronic equipment
• Drafting Committee: IEC/TC 40 - IEC_TC_40
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 08-Dec-2023
• Due Date: 29-Jan-2021
• Completion Date: 08-Dec-2023
• Ref Project: SIST EN IEC 60393-4:2024 - Potentiometers for use in electronic equipment - Part 4: Sectional specification: Single-turn rotary power potentiometers (IEC 60393-4:2023)

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2024
Potenciometri za elektronsko opremo - 4. del: Področna specifikacija: enoobratni
vrtljivi potenciometri moči (IEC 60393-4:2023)
Potentiometers for use in electronic equipment - Part 4: Sectional specification: Single-
turn rotary power potentiometers (IEC 60393-4:2023)
Potentiometer zur Verwendung in Geräten der Elektronik - Teil 4: Rahmenspezifikation:
Hochbelastbare Einfach-Drehpotentiometer (IEC 60393-4:2023)
Potentiomètres utilisés dans les équipements électroniques - Partie 4: Spécification
intermédiaire: Potentiomètres rotatifs monotours à forte dissipation (IEC 60393-4:2023)
Ta slovenski standard je istoveten z: EN IEC 60393-4:2023
ICS:
31.040.20 Potenciometri, spremenljivi Potentiometers, variable
upori resistors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60393-4

NORME EUROPÉENNE
EUROPÄISCHE NORM December 2023
ICS 31.040.20
English Version
Potentiometers for use in electronic equipment - Part 4:
Sectional specification: Single-turn rotary power potentiometers
(IEC 60393-4:2023)
Potentiomètres utilisés dans les équipements électroniques Potentiometer zur Verwendung in Geräten der Elektronik -
- Partie 4: Spécification intermédiaire: Potentiomètres Teil 4: Rahmenspezifikation: Hochbelastbare Einfach-
rotatifs monotours à forte dissipation Drehpotentiometer
(IEC 60393-4:2023) (IEC 60393-4:2023)
This European Standard was approved by CENELEC on 2023-11-24. 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60393-4:2023 E

European foreword
The text of document 40/3074/FDIS, future edition 3 of IEC 60393-4, prepared by IEC/TC 40
"Capacitors and resistors for electronic equipment" was submitted to the IEC-CENELEC parallel vote
and approved by CENELEC as EN IEC 60393-4:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-08-24
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-11-24
document have to be withdrawn
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.
A preceding document on the subject covered by this specification has been:
— CECC 41200:1978
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 60393-4:2023 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 60068-1:2013 NOTE Approved as EN 60068-1:2014 (not modified)
IEC 80000 (series) NOTE Approved as EN IEC 80000 (series)
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 60062 2016 Marking codes for resistors and capacitors EN 60062 2016
+ A1 2019  + A1 2019
IEC 60063 - Preferred number series for resistors and EN 60063 -
capacitors
IEC 60068-2-1 - Environmental testing - Part 2-1: Tests - EN 60068-2-1 -
Test A: Cold
IEC 60068-2-2 - Environmental testing - Part 2-2: Tests - EN 60068-2-2 -
Test B: Dry heat
IEC 60393-1 2008 Potentiometers for use in electronic EN 60393-1 2009
equipment - Part 1: Generic specification
IEC 60915 - Capacitors and resistors for use in EN 60915 -
electronic equipment - Preferred
dimensions of shaft ends, bushes and for
the mounting of single-hole, bush-
mounted, shaft-operated electronic
components
IEC 61193-2 2007 Quality assessment systems - Part 2: EN 61193-2 2007
Selection and use of sampling plans for
inspection of electronic components and
packages
IEC 61439-1 - Low-voltage switchgear and controlgear EN IEC 61439-1 -
assemblies - Part 1: General rules

IEC 60393-4 ®
Edition 3.0 2023-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Potentiometers for use in electronic equipment –

Part 4: Sectional specification: Single-turn rotary power potentiometers

Potentiomètres utilisés dans les équipements électroniques –

Partie 4: Spécification intermédiaire: Potentiomètres rotatifs monotours à forte

dissipation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.040.20  ISBN 978-2-8322-7611-2

– 2 – IEC 60393-4:2023 © IEC 2023
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative reference . 6
3 Terms and definitions . 7
4 Preferred characteristics . 8
4.1 General . 8
4.2 Style and dimensions . 8
4.3 Preferred climatic categories . 9
4.4 Resistance law . 9
4.5 Nominal total resistance . 9
4.6 Tolerances on nominal total resistance . 9
4.7 Rated dissipation . 9
4.8 Limiting element voltage . 10
4.9 Insulation voltage . 10
4.10 Number of cycles of operation . 10
4.11 Shaft rotational speed . 10
5 Tests and test severities . 10
5.1 General . 10
5.2 Mounting . 11
5.3 Tests . 11
5.3.1 Drying . 11
5.3.2 Resistance measurement . 11
5.3.3 Vibration . 11
5.3.4 Bump . 11
5.3.5 Shock . 11
5.3.6 Temperature coefficients and temperature characteristics of resistance . 12
6 Performance requirements. 12
6.1 General . 12
6.2 Limits for change in resistance or output voltage ratio . 12
6.3 Limits for insulation resistance . 12
6.4 Limits of temperature rise . 13
6.5 Limits for resistance law . 13
6.6 Limits for operating torque . 13
6.7 Limits for end stop torque . 13
6.8 Limits for residual resistances . 14
6.9 Visual inspection . 14
6.9.1 General visual criteria . 14
6.9.2 Visual criteria after tests . 14
6.10 Solderability . 14
7 Marking, packaging, and ordering information . 14
7.1 Marking of the component . 14
7.2 Marking for packaging . 15
7.3 Additional marking . 15
7.4 Ordering information . 15
8 Detail specifications . 15
8.1 General . 15

IEC 60393-4:2023 © IEC 2023 – 3 –
8.2 Information to be specified in a detail specification . 15
8.2.1 Outline drawing or illustration . 15
8.2.2 Dimensions . 16
8.2.3 Mounting . 16
8.2.4 Resistance law . 16
8.3 Ratings and characteristics . 16
8.3.1 General . 16
8.3.2 Nominal total resistance range . 16
8.3.3 Marking . 16
8.3.4 Ordering information . 16
8.3.5 Additional information . 17
9 Quality assessment proc
...