ISO 1724:2003 Preview
Road vehicles -- Connectors for the electrical connection of towing and towed vehicles -- 7-pole connector type 12 N (normal) for vehicles with 12 V nominal supply voltage
This standard was last reviewed and confirmed in 2015. Therefore this version remains current.
ISO 1724:2003 specifies the dimensions of, and contact allocation tests and requirements for, 7-pole connectors of type 12 N for the electrical connection between towing and towed vehicles with 12 V nominal supply voltage, thus ensuring interchangeability.
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