ISO 1724:2003 PDF

Name: ISO 1724:2003 — 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
SKU: ISO 1724:2003
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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

Название (английский):

ISO 1724:2003

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

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 8
Дата публикации:: 13 ноября 2003 г.
Издание:: ISO IS 1724 edition 4 version 1
ICS:: 43.040.10

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Цена:120 €

Описание (английский):

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.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 1724:2003 defines the mechanical and electrical requirements for the 7‑pole connector type 12 N used for the electrical connection between towing and towed vehicles with a 12 V nominal supply voltage. The standard specifies connector dimensions, contact allocation, marking and wiring details, and a sequence of tests to ensure interchangeability and reliable operation in vehicle towing applications.

Keywords: ISO 1724:2003, 7‑pole connector, 12 N, 12 V, towing and towed vehicles, electrical connector, interchangeability

Key topics and technical requirements

Dimensions and construction

Detailed plug and socket geometry to ensure compatibility (pins slotted for ≥8.5 mm compression).
Socket cover that closes automatically when unplugged.

Contact allocation and wiring

Seven contacts with defined functions and insulation colours:
- 1 - Left indicator (Yellow)
- 2 - Rear fog light (Blue)
- 3 - Common return (White)
- 4 - Right indicator (Green)
- 5 - Right rear position/plate illumination (Brown)
- 6 - Stop lights (Red)
- 7 - Left rear position/plate illumination (Black)
Terminal cross-sections: contacts 1,2,4,5,6,7 accept 1.5 mm²; contact 3 accepts 2.5 mm².

Marking and identification

Contact numbers permanently marked on terminal faces and inside socket cover (character height ≥2 mm where space allows).
12 N connectors distinguished from 12 S by a dark, permanent insulating colour (preferably black).

Performance and tests

Test sequences referenced to ISO 4091 (visual, dimensional, connection/disconnection, current cycling, salt spray, temperature/humidity cycling, endurance).
Connection force ≤ 200 N; disconnection force between 50 N and 200 N.
Cable retention test: 250 ± 5 N applied to disengaged plug retention.
Modified environmental tests: temperature cycling includes −25 °C to +75 °C; endurance for 1 000 cycles.
Salt spray and other tests per ISO 4091 with specified exceptions.

Applications and users

Vehicle OEMs (cars, light commercial vehicles) and trailer manufacturers specifying standard towing electrical interfaces.

Connector and cable harness suppliers designing components for trailer/towbar systems.

Aftermarket trailer accessory makers, fleet operators, and testing laboratories validating compliance and interchangeability.

Regulatory and conformity bodies referencing consistent wiring and connector dimensions for safety and compatibility.

Related standards

ISO 3732 - 7‑pole connector type 12 S (supplementary)

ISO 11446 - 13‑pole connector (alternative for more circuits)

ISO 4091 - Definitions, test methods and requirements for towing connectors

ISO 4141 - Multi‑core connecting cables

ISO 1103 - Mechanical coupling dimensions for compatibility

For design, manufacturing or compliance activities, consult the full ISO 1724:2003 text and referenced ISO documents for complete drawings, tolerances and test procedures.

ISO 1724:2003 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 4091:2003/Amd 1:2022

Road vehicles — Connectors for the electrical connection of towing and towed vehicles — Definitions, tests an…

ISO 3732:1997

Road vehicules — Electrical connections between towing and towed vehicles with 12 V systems — 7 pole connecto…

ISO 11446:2004

Road vehicles — Connectors for the electrical connection of towing and towed vehicles — 13-pole connectors fo…

ISO 4141-4:2001

Road vehicles — Multi-core connecting cables — Part 4: Articulation test method and requirements for coiled c…

SIST ISO 11036:2020

Sensory analysis -- Methodology -- Texture profile