IEC INTERNATIONAL STANDARD 60939-2-1 First edition 2004-11 FOENSERTAMESENI THISLOCANGNBANYASOPLED BY BOOK SUPPLY BUREAU. Completefilter units for radio interference suppression - Part 2-1: Blank detail specification- Passive filter units for electromagnetic interference suppression - Filters for which safety tests are required (assessment level D/DZ) IEC Reference number IEC 60939-2-1:2004(E) Publication numbering As from1 January 1997 allIEC publications are issued with a designation in the 60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1. Consolidated editions The IEC is now publishing consolidated versions of its publications. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the amendments 1 and 2. Further informationonIEC publications The technical content of IEC publications is kept under constant review by the IEC, thus ensuring that the content reflects current technology. Information relating to FOCENSERTAMESENI THISLOCANONBANYASOPELIED BY BOOK SUPPLY BUREAU. this publication, including its validity, is available in the IEc Catalogue of publications (see below) in addition to new editions, amendments and corrigenda. Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as the list of publications issued, is also available from the following: IEc Web Site (www.iec.ch) Catalogue of IEC publications The on-line catalogue on the IEC web site (www.iec.ch/searchpub) enables you to search by a variety of criteria including text searches, technical committees and date of publication. On-line information is also available on recently issued publications, withdrawn and replaced publications, as well as corrigenda IEC Just Published This summary of recently issued publications (www.iec.ch/online_news/ justpub) is also available by email. Please contact the Customer Service Centre (see below) for further information. Customer Service Centre please contact the Customer Service Centre: Email: [email protected] Tel: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC INTERNATIONAL STANDARD 60939-2-1 First edition 2004-11 HABYBOOKSULBURAU. Completefilter units for radio interference suppression Part 2-1: Blank detail specification- Passive filter units for electromagnetic interference suppression - Filters for which safety tests are required (assessment level D/DZ) A IEC 2004I Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varembe, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: [email protected] Web: www.iec.ch P PRICECODE IEC Com mission Electrotechnique Internationale International Electrotechnical Commission MekAyHapoAHag 3neKTpoTexHWMecKaR KoMMCcl For price, see current catalogue 60939-2-1@IEC:2004(E) -2- INTERNATIONALELECTROTECHNICALCOMMISSION COMPLETEFILTER UNITS FORRADIOINTERFERENCESUPPRESSION Part 2-1: Blank detail specification - Passive filterunits for electromagnetic interference suppression Filtersforwhichsafetytestsarerequired (assessmentlevelD/DZ) FOREWORD 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 technicai committees; any IEC National Committee interested agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matte