DLFZWB 12V Trailer Breakaway Kit with LED Test Light — Waterproof, Battery-Powered Emergency Brake System

The DLFZWB 12V Trailer Breakaway Kit is a compact, waterproof fail-safe system that automatically applies trailer brakes if the trailer separates from the tow vehicle.

This breakaway kit is built to protect trailers and their loads by engaging the trailer's braking circuit the moment a disconnection is detected. Housed in a rugged, weather-resistant enclosure and supplied with a test light and a replaceable 12V battery, the unit makes it straightforward to verify readiness before each trip. Color-coded wiring — white for ground, blue for brakes, black for battery — simplifies hookup and integration with most trailers and controllers.

How does the breakaway system work in an emergency?

When the safety cable or lanyard is pulled free, the breakaway switch closes the circuit between the battery and the trailer brakes. This delivers power to the brake controller output, applying the trailer brakes independently of the tow vehicle to reduce runaways and collisions. The system is self-contained and does not rely on the tow vehicle's electrical system once activated.

• Automatic activation upon physical detachment
• Independent 12V battery supply to power trailer brakes
• Simple wiring that routes to the brake solenoid or controller

What tools and steps are needed for installation?

Installation is straightforward for anyone familiar with trailer wiring: mount the unit in a protected location, connect the color-coded wires, and secure the safety cable or lanyard to the tow vehicle. No special tools are required beyond common hand tools and a voltmeter for final checks. The LED test light and test button let you confirm the battery state and circuit function quickly.

• Mounting screws or bolts and a small wrench or screwdriver
• Connect white ground, blue brake output, black battery lead
• Use the LED test and test button to verify charge and operation

How do the LED indicators and test light help maintain reliability?

The built-in LED indicators provide a visual battery status so you can spot low charge before it becomes a problem. The included test light and push-button let you run a quick pre-trip check without removing the cover. Regular inspection and charging keep the breakaway battery ready to deliver full braking power when needed.

• LEDs show fully charged, recharging, or needs charging states
• On-demand test button verifies circuit and battery condition
• Quick visual checks reduce the risk of unnoticed battery failure

Who is this for: The DLFZWB 12V Trailer Breakaway Kit is designed for towing professionals, weekend haulers, and fleet operators who need a reliable, easy-to-install safety device for trailers. It's suitable for small to mid-size trailers, boat trailers, utility trailers, and any towing setup that uses an electric brake system. If you tow regularly or carry valuable cargo, this kit gives a simple, independent layer of protection against accidental trailer separation.