EN 60644:1993

Specification for high-voltage fuse-links for motor circuit applications

Applies primarily to fuse-links used with motors started direct-on-line on alternating current systems of 50 Hz and 60 Hz. Standardizes time-current characteristics to formulate additional pulse withstand requirements regarding testing and to give guidance for the selection of fuse-links to be used with motors. Note: -Fuse-links according to this specification should comply with the requirements of EN 60282-1.

Anforderungen an Hochspannungs-Sicherungseinsätze für Motorstromkreise

Spécification relative aux éléments de remplacement à haute tension destinés à des circuits comprenant des moteurs

S'applique principalement aux éléments de remplacement utilisés avec des moteurs à démarrage direct sur des réseaux en courant alternatif à 50 Hz et 60 Hz. Normalise les caractéristiques temps-courant, établit des spécifications d'essais complémentaires concernant la tenue aux impulsions et donne des conseils pour le choix des éléments de remplacement à utiliser avec des moteurs. Note: - Les éléments de remplacement répondant à cette spécification doivent être conformes aux prescriptions de la EN 60282-1.

Specification for high-voltage fuse-links for motor circuit application (IEC 644:1979)

General Information

• Status: Withdrawn
• Publication Date: 19-Jan-1993
• Withdrawal Date: 19-Jul-1993
• Technical Committee: CLC/SR 32A - High-voltage fuses
• Drafting Committee: IEC/SC 32A - IEC_SC_32A
• Parallel Committee: IEC/SC 32A - IEC_SC_32A
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 01-Oct-2012
• Completion Date: 01-Oct-2012
• Ref Project: SIST EN 60644:1995 - Specification for high-voltage fuse-links for motor circuit applications

Relations

• Replaced By: EN 60644:2009 - Specification for high-voltage fuse-links for motor circuit application
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60644:1995
01-december-1995
Specification for high-voltage fuse-links for motor circuit application (IEC
644:1979)
Specification for high-voltage fuse-links for motor circuit applications
Anforderungen an Hochspannungs-Sicherungseinsätze für Motorstromkreise
Spécification relative aux éléments de remplacement à haute tension destinés à des
circuits comprenant des moteurs
Ta slovenski standard je istoveten z: EN 60644:1993
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
SIST EN 60644:1995 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60644:1995

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SIST EN 60644:1995

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SIST EN 60644:1995

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SIST EN 60644:1995

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SIST EN 60644:1995

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SIST EN 60644:1995
NORME CEI
INTERNATIONALE IEC
60644
INTERNATIONAL
Première édition
STAN DARD
First edition
1979-01
Spécification relative
aux éléments de
remplacement à haute tension destinés
à des circuits comprenant des moteurs
Specification for high-voltage fuse-links
for motor circuit applications
© IEC 1979 Droits
de reproduction réservés — Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur.
writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
J
PRICE CODE
International Electrotechnical Commission
IEC
McM{nyHapoAHaH 3neKTp0TeXHHVecHaR IioMHOOHA
voir vigueur
Pour prix, catalogue en
• For price, see current catalogue

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SIST EN 60644:1995
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CONTENTS
Page
FOREWORD 5
PREFACE 5
Clause
I. Scope 7
7
2. Object
7 3. Fuse-link time-current characteristics
4. K Factor 9
5. Withstand requirements 9
9
6. Withstand tests
1.1 7. Information to be given to the user
Selection of fuse-links for motor circuit applications and correlation of fuse-link characteristics
8.
13
with those of other components of the circuit
16
Figures

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SIST EN 60644:1995
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
SPECIFICATION FOR HIGH-VOLTAGE FUSE-LINKS
FOR MOTOR CIRCUIT APPLICATIONS
FOREWORD
1) The formal decisions or agreements of the IEC on technical matters, prepared by Technical Committees on which all the
National Committees having a special interest therein are represented, express, as nearly as possible, an international
consensus of opinion on the subjects dealt with.
2) They have the form of recommendations for international use and they are accepted by the National Committees in that
sense.
3) In order to promote international unification, the IEC expresses the wish that all National Committees should adopt
the text of the IEC recommendation for their national rules in so far as national conditions will permit. Any divergence
between the I EC recommendation and the corresponding national rules should, as far as possible, be clearly indicated
in the latter.
PREFACE
This standard has been prepared by Sub-Committee 32A, High-voltage fuses, of IEC Technical Committee No. 32, Fuses.
General work concerning the standardization of the time-current characteristics of fuses was decided on at the meeting
held in Tehran in 1969. Several tentative proposals were submitted to Sub-Committee 32A which decided, at its meeting
held in The Hague in 1975, to consider fuse-links for motor circuit applications and those for transformer circuit applications
separately. The first drafts for motor circuit applications were discussed at the meeting held in Moscow in 1977, as a result
of which a final draft, Document 32A(Central Office)44, was submitted to the National Committees for approval under the
Six Months' Rule in November 1977.
The following countries voted explicitly in favour of publication:
Australia Italy Turkey
Belgium Union of Soviet
Netherlands
Canada South Africa (Republic of) Socialist Republics
Egypt Spain United Kingdom
France Sweden United States of America
Germany Switzerland
The Japanese National Committee cast a negative vote to object to the concept of rated current as used in this standard.
It was in favour of
...