What is the purpose of a breakaway break?

The purpose of a breakaway brake is to stop the trailer if it becomes disconnected from the towing vehicle. This safety system is critical in preventing runaway trailers, which can pose significant risks to both the driver and other road users. When a trailer becomes detached while in motion, the breakaway brake activates automatically, engaging the trailer's brakes to halt its movement, thus reducing the potential for accidents and damage.

The other options relate to braking functions but address different concepts. Providing additional traction and increasing braking efficiency are not the specific aims of a breakaway brake; rather, they pertain to the performance and handling characteristics of a vehicle while in operation. Reducing wear on brake pads is an important aspect of overall vehicle maintenance, but it does not align with the primary function of a breakaway brake system, which is strictly a safety feature.