ISO INTERNATIONAL STANDARD 3732 Fourth edition 2003-11-01 RoadvehiclesConnectorsforthe electrical connection of towing and towed vehicles — 7-pole connector type 12 S (supplementary) for vehicles with 12 V nominal supply voltage Vehiculesroutiers-Connecteurspourliaisons électriquesentre vehiculestracteursetvehiculestractes-Connecteura7contactsde type12S(supplementaire)pourlesvehiculesatensionnominale de12v Reference number ISO 3732:2003(E) XX ISO @ISO2003 Copyright Intermational Organization for Standardization d without license from IHS Not for Resale ISO3732:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. @ ISO2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Casepostale56.CH-1211Geneva20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ISO2003—All rights reserved No reproduction or networking permited without license from IHS Not for Resale ISO3732:2003(E) Contents Page Foreword.. .iv 1 Scope. 2 Normativereferences 3 Terms and definitions. 4 Dimensions.. 5 Applicationofconnector. 6 Testsandspecific requirements Bibliography .. ii IHS under lic onse with IS without license from IHS Not for Resi ISO3732:2003(E) Foreword IsO (the International Organization for Standardization) is a worldwidefederation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with IsO, also take part in the work.Iso collaborates closely with the InternationalElectrotechnicalCommission(iEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least75%ofthememberbodies castinga vote. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO3732waspreparedbyTechnicalCommitteeISO/TC22,Roadvehicles,SubcommitteeSC3,Electrical andelectronicequipment. This fourth edition cancels and replaces the third edition (IsO 3732:1997), which has been technically revised ISO2003-Allrightsreserved tional Organization for Standardizatio ISO 3732:2003(E) INTERNATIONALSTANDARD Road vehicles Connectors for the electrical connection of towing and towed vehicles 7-pole connector type 12 S (supplementary) for vehicles with 12 V nominal supply voltage Scope 1 This International Standard specifies the dimensions of, and requirements for,7-pole connectors of type 12 S vehicles)and towed vehicles with 12 V nominal supply voltage, thus ensuring interchangeability.A 12 S connector is intended to be used in addition to a 12 N connector according to IsO 1724 where more than 7 poles are required. NOTE For new developments and where more than 7 poles are required, as an alternative to the use of the 7-pole connector according to this International Standard and ISo 1724, the use of 13-pole connector in accordance with ISO 11446 [1] may be required. Normativereferences The following referenced documents are indispensable for application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including anyamendments)applies. Iso1103,Roadvehicles-Coupli