I’m setting up a Orion XS 12/12-50A DC-DC battery charger in my 5th wheel and have a question on how to hook-up to my F350 diesel battery. I am running 2 (red & black) 4 awg cables from the battery to the bed of the truck, where I will install an Anderson connector for connecting to the trailer. After the battery positive post I will install a 70 amp circuit breaker.
I want to install a cut-off switch on the positive wire after the circuit break so I can turn the power to the bed of the truck on/off. I want to use one of the trucks up-fitter switch to turn the system on. Default stage would be off, no power to the Anderson connector in the bed of the truck.
My questions are: 1) what kind of switch should I use? (relay, solenoid, etc), 2) what rating should the switch be? (50 amp, 70 amp, 200 amp, etc), 3) any suggestions on an actual switch to use?
thanks
HK