What is the purpose of a breakaway switch?

The purpose of a breakaway switch is to apply the brakes on a trailer if the trailer becomes separated from the towing vehicle. This safety feature is crucial for preventing the trailer from rolling freely and potentially causing accidents or injuries. When the trailer disconnects, the breakaway switch activates the brakes, bringing the trailer to a stop, thereby reducing the risk of damage to both the trailer and the towing vehicle, as well as enhancing road safety.

In terms of functionality, a breakaway switch typically involves a lanyard connected to the towing vehicle. If the trailer detaches, the lanyard pulls a pin or engages a mechanism that activates the brake system. This design is especially important for larger trailers carrying significant loads, where unintentional detachment could lead to severe consequences.

Understanding this function is critical for those involved in the operation and maintenance of towing systems, emphasizing the importance of safety mechanisms in preventing accidents.