Hello, I am looking at adding a jump a fuse to my car to power a relay on and off with the key. Should be minimal power draw. Which fuse do you guys use for your projects?

Looking at installing a dash camera and a low power inverter that will be wired to battery going through a relay to control power with the key switch. Probably going to use 12 gauge wire with a 40amp relay and a 30amp inline fuse to the battery. Not big power mind you. I will be drawing about 155w at peak. With room to grow into the 200w category depending on what I need next.

Any ideas on a proper fuse I can use that is key switched, meaning it will stay on temporarily until door opened or the key is in the ignition or engine running.

 

May want to look at reverse camera power. Even on cars that do not have the reverse camera, there is still a fuse there and it is switched.

-Matt

 

Much apreciated Matt. I will take a look.