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ISO 3731:2003

Road vehicles — Connectors for the electrical connection of towing and towed vehicles — 7-pole connector type 24 S (supplementary) for vehicles with 24 V nominal supply voltage

Publication date:   Oct 28, 2003

General information

90.60   Close of review   Sep 3, 2026

ISO

ISO/TC 22/SC 32 Electrical and electronic components and general system aspects

International Standard

43.040.10   Electrical and electronic equipment

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Scope

ISO 3731:2003 specifies the dimensional characteristics of, and specific requirements for, 7-pole connectors of type 24 S and their contact allocation for the electrical connection of towing and towed vehicles with 24 V nominal supply voltage, thus ensuring interchangeability. A 24 S connector is intended to be used in addition to a 24 N connector according to ISO 1185 where more than 7 poles are required.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3731:1997

NOW

PUBLISHED
ISO 3731:2003
90.60 Close of review
Sep 3, 2026