ISO 3732:2003 specifies the dimensions of, and requirements for, 7-pole connectors of type 12 S and their contact allocation for the electrical connection of towing (passenger cars or light commercial 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.
Status: PublishedPublication date: 2003-11
Edition: 4Number of pages: 9
Technical Committee: ISO/TC 22/SC 32 Electrical and electronic components and general system aspects
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