Review on ⚡️ High-Performance 30A 12V Type 1 Automatic Reset Circuit Breaker by Fastronix with Protective Cover by Kevin Abner

These circuit breakers are very simple, inside is a bimetallic switch that opens when it gets hot due to overload. The best part is the rubber cover, which allows you to install cables in any direction to this switch. Once you've tied down your racks, simply slip the cover over and it's solid protection against short circuits. I installed this switch between my battery and the trailer brake controller. You need a circuit breaker, not a fuse. So if you brake hard with your trailer and heat up the wiring, you won't lose power permanently. They'll bring the brakes back when things cool down.