What is a breakaway brake?
A breakaway brake is an independent device located on the coupler of the trailer that activates the trailer brakes if the trailer should come off the tow vehicle. To be legal, it must be equipped with a fully charged battery that will engage the trailer brakes for 15 minutes. A removable pin on the battery box is attached to a cable that is hooked onto the tow vehicle. If the trailer pulls free, the pin pulls out and the breakaway device activates the trailer brake. The cable should be attached to the frame of the vehicle or to the permanent part of the hitch, not to the ball or ball mount since either of these parts may also pull free with the trailer and the brakes will not be activated.. At least seventeen states require a breakaway brake on recreational and privately owned horse trailers, although some states have a “grandfather” clause that exempts older trailers. All commercial trailers must have one. Even if it is not required in your state, it is a good idea to have your traile