I have two Blue Sea circuit breakers on the cable between my truck battery and the camper’s lithium battery. We’ve had three nights this past week where the ambient air temperature was within a degree or two of -40F. I wanted to start the truck and run the engine to charge the truck battery and move the truck to another location. I tried to manually trip the breaker in the engine compartment to prevent any current to the dcdc controller but the breaker was frozen open. Same result when I tried the breaker in the camper. It appears that there was no way to prevent current flow to the dcdc.
I’m not sure what the implications are if there is a short in the cable during extreme weather situations. Or at what temperature the breaker freezes up.
In the future I plan to trip the breaker in advance of extreme cold temps.
Has anyone else noticed this condition with the breakers?
I’m not sure what the implications are if there is a short in the cable during extreme weather situations. Or at what temperature the breaker freezes up.
In the future I plan to trip the breaker in advance of extreme cold temps.
Has anyone else noticed this condition with the breakers?