CURT Softtrac I 12V Rechargeable Breakaway Kit — Lockable Weatherproof Case, 48" Lanyard

The CURT Softtrac I Breakaway Kit (52040) is a complete 12‑volt, rechargeable breakaway system with a nylon switch and lockable battery case designed to stop electric trailer brakes if a tow separation occurs.

When towing, an unexpected separation between trailer and tow vehicle is rare but critical to prepare for. The CURT Softtrac I kit supplies the essential components—battery, charger, switch, lanyard and a weatherproof lockable case—so your trailer's electric brakes can be engaged automatically during a breakaway. This kit meets DOT expectations for breakaway devices and is intended for a wide range of trailer types that use electric brakes.

How does this breakaway kit activate my trailer brakes?

The nylon breakaway switch completes the circuit to the included 12‑volt battery when the trailer separates, sending power to the trailer's electric brake system. The 48" lanyard connects the switch to the tow vehicle and pulls the switch if the hitch fails, creating an immediate electrical connection that applies the brakes.

• 48" cable lanyard for reliable mechanical activation
• Nylon breakaway switch designed for secure, simple trigger action
• Battery output matched to typical electric trailer brake systems

What components are included and how do they protect the battery?

The kit contains a rechargeable 12‑volt, 5‑amp battery and a compatible charger so the battery can be kept charged between uses. A durable, lockable top‑load plastic battery case with a screw-tight lid and rubber gaskets shields the battery from weather, road debris and tampering, preserving wiring connections and reducing corrosion.

• 12‑volt, 5‑amp rechargeable battery for repeated readiness
• 12‑volt charger included for easy maintenance charging
• Lockable plastic battery case with gasketed lid for moisture protection

Which trailers and braking systems is the Softtrac I compatible with?

This Softtrac I kit is intended for trailers equipped with electric brakes and is suitable for trailers up to three axles. The system is versatile enough for utility trailers, car haulers, boat trailers and other commonly towed loads that rely on electric braking circuits.

• Compatible with most electric-brake trailer setups
• Rated to accommodate trailers with up to three axles
• Works with standard towing configurations using a 48" lanyard connection

How do I maintain the system for reliable performance?

Routine checks include keeping the battery charged with the included charger, inspecting the lanyard and switch for wear, and ensuring the case seals properly to block moisture. Regular testing before long trips helps confirm the circuit and switch operate when needed without waiting for an emergency.

• Charge the battery after any activation and periodically between uses
• Inspect lanyard and switch for fraying or damage before each trip
• Verify the case lid seals and the lock functions to prevent tampering

Who is this for? The CURT Softtrac I Breakaway Kit 52040 is built for owners of trailers with electric brakes who want a tested, DOT‑compliant breakaway solution. It suits do-it-yourself installers, fleet operators, and recreational users who need a compact, rechargeable system with protective housing and straightforward activation mechanics. If you tow vehicles, equipment, or boats with electric-brake trailers and want a ready-to-use breakaway kit that includes a charger and a lockable case, this CURT kit is designed to meet those needs.