The breakaway cable in Germany, the Netherlands and Switzerland

17. September 2017 um 16:24

breakaway cableIt makes sure that even in the event of the trailer coming loose from the coupling towbar it will still decelerate. This is what we call the safety or breakaway cable. Anyone who drives a lot with a trailer is sure to be familiar with installing it – and probably also had many discussions about it. When travelling to our neighbouring countries, the Netherlands and Switzerland, if the breakaway cable is not correctly installed or you have no safety cable, this could lead to heavy fines. For this reason, we’ve put together the provisions given by the ADAC (German Automobile Association) regarding the correct installation and use of the cable.

Breakaway cable safety mechanisms when driving in Germany

In Germany trailers in the medium-weight class, i.e. with a permissible maximum weight of more than 750 kg and up to 3,500 kg, are generally equipped with inertia (overrun) brakes. This means that in the braking procedure the trailer overruns the towing vehicle and the resulting power is transmitted by lever transmission to the trailer brakes. In the event that the trailer becomes detached from the towbar, a safety cable should trigger the brakes and bring the trailer to a halt.

The use of a breakaway or safety cable is mandatory in Germany. Where exactly the cable should be installed is not specified. However, one thing is certain, the cable may not be looped over the towbar. As far as technically possible, the safety cable has to be fixed through an opening, drill hole or eyelet on the towbar, not on the ball head.

 

How to use a safety cable correctly in the Netherlands

In the Netherlands safety devices are foreseen for both braked and unbraked trailers. Trailers up to 1500 kg therefore require a safety feature and/or breakaway facility. With trailers without their own brakes a secondary coupling in the form of a cable or chain is compulsory. This also applies for unbraked trailers up to 750 kg. With larger trailers an ultimate (at break) braking provision must be in place, i.e. a steel cable between the vehicle and the braking system of the trailer. This is only available for vehicles (trailers) with brakes.

In any case, it is very important that in the Netherlands the specified safety cables must, in addition, be attached to the towbar for both unbraked and braked trailers.

This is done with special eyelets or clamps. Simply winding the cable round the knee-joint bar is not sufficient in the Netherlands.

 

How to use a safety cable correctly in Switzerland

In Switzerland with trailers up to a permissible total weight of 1,500 kg without a service brake system, an additional safety cable, e.g. a breakaway cable is required. The Federal Office for Roads has approved additional eyelets or special fixing holes on the towbar as suitable for mounting.

 

What requires special attention with a foreign/German trailer combination in the Netherlands and Switzerland?

In accordance with the Vienna Convention on Road Traffic, the brake systems of trailers must be equipped in such a way that the trailer, even in the case of a break in the coupling device when in motion, can come to a halt. This does not apply for single-axle trailers or double-axle trailers with a wheelbase of less than one metre and the trailer does not exceed the permissible total weight of 1,500 kg. Unbraked trailers up to a permissible total weight of 1,500 kg must be connected and secured to the towing vehicle via a safety cable, i.e. a breakaway cable. General information: Since the minimum requirements specified by the Vienna Convention on Road Traffic may not be exceeded, either in the Netherlands or in Switzerland, the national provisions shall in any case also apply for trailer combinations registered in Germany, insofar as these are active road users in the Netherlands or Switzerland.

 

Please note: Our towbars have either eyelets or a drill hole for fixing the breakaway cable. Read more about how to use the cable correctly in our report on this topic.