75ZT Community

Can I use 3a screw connectors on a towbar wiring loom inside the car boot?

I have fitted the towbar and sockets to the exterior and just need to connect the second hand wiring loom with relays inside the boot to the wires going to the rear light clusters (left & right). I ordered choc box connectors and they sent small 3 amp screw connectors for use in each choc box. Does anyone know if these small 3 amp connectors correct? Or too small?

There's a lot to the question, TBH. I'll start with the fact you mention sockets, so I assume you have two, 12N and 12S. The 12S carries the current for battery charging and fridge and 3A is not enough. On the 12N 3A is insufficient for the earth, and boderline for things like brakes, fogs if your trailer / van has two.

All of that said, chockblocks for wiring on a car are bad, almost as bad as bodgelocks (Scothlocks, spit) so I would only use them on my worst enemies car. Even though they are in the boot and shouldn't corrode, even the humidity can cause them to, but vibration is the big problem. A crimped splice, covered with adhesive heatshrink is a much better solution.