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What is EN ISO 11446:2012?


EN ISO 11446:2012, also known as ISO 11446:2012, is an international standard that specifies the requirements for the electrical connections between towing vehicles and trailers. It defines the electrical characteristics of the connections, ensuring safe and reliable communication between the two vehicles.

Scope and Purpose

The purpose of EN ISO 11446:2012 is to provide a standardized and uniform method for connecting the electrical systems of towing vehicles and trailers. By establishing common requirements for the connection, this standard aims to enhance safety on the road and facilitate the interoperability of different vehicles and trailers.

Key Features of EN ISO 11446:2012

EN ISO 11446:2012 covers various aspects of the electrical connection between a towing vehicle and a trailer. These include the physical design of connectors, their pin assignments, and the electrical parameters for signaling and power transfer.

The standard prescribes the following key features:

Physical Connector Design: The standard defines the shape, size, material, and mounting arrangements for the connectors. This ensures compatibility and ease of use across different vehicles and trailers.

Pin Assignments: EN ISO 11446:2012 specifies the pin assignments for various electrical functions, such as lighting, braking, charging, and signaling. This enables consistent connectivity and effective communication between the towing vehicle and the trailer.

Electrical Parameters: The standard establishes the electrical parameters for signaling and power transfer. These parameters include voltage levels, current ratings, impedance requirements, and insulation resistance. Compliance with these parameters ensures reliable and safe operation of the electrical connection.

Benefits and Impact

EN ISO 11446:2012 brings several benefits to the automotive industry and road users:

Enhanced Safety: By providing a standardized electrical connection, this standard reduces the risk of accidents caused by faulty or incompatible connections between towing vehicles and trailers.

Interoperability: Vehicles and trailers complying with EN ISO 11446:2012 can easily connect and communicate with each other, enabling efficient and seamless operations in various applications.

Compatibility: The standard ensures that electrical connectors and systems are compatible across different manufacturers and models, promoting compatibility and convenience for users.

Reliability: By specifying the electrical parameters, this standard ensures reliable and consistent operation of the electrical connection, minimizing the chances of signal errors or power failures.

In conclusion, EN ISO 11446:2012 is an important standard that defines the requirements for electrical connections between towing vehicles and trailers. It plays a crucial role in enhancing safety, interoperability, compatibility, and reliability in the automotive industry. Compliance with this standard enables seamless communication between vehicles and trailers while minimizing the risk of accidents and electrical failures on the road.


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TAGS Test Probe BTest Probe 18Test Probe 11Go GaugesIEC 61032IEC 60335Test PinTest FingerIEC 60061-3Wedge Probe7006-29L-47006-27D-37006-11-87006-51-27006-51A-2 7006-50-17006-27C-17006-28A-1Test Probe7006-27B-1IEC 61010IEC 60529IEC 60068-2-75