Why do the majority of RV manufacturers use a latching solenoid for the battery disconnect (storage) as opposed to a mechanical battery disconnect switch? Is there some other function that the sol...
The Solenoid, basiclly a big and I mean BIG relay. can easily pass 100 amps or more. The wires that run a great distance to the switch. just a couple amps. You are asking why they use a fairly low cost remote switch with low cost 20-22 ga wires instead of oh say 50 feet of something between 4ga and 00ga.
Way cheaper. and way better electrically as well. (less voltage loss in the line).
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