The kill switch connects the 12 volt power when the camper is setup and ready to camp.
The most common location is at the galley, under the sink and stove. Other locations can be at the beds, commonly on highwall units that do not use galley lifts.
For galley systems, When the galley sink is raised into position, the switch is pressed by the weight of the sink / stove system and 12 volt power comes on.
For high wall units, the switch can be on a front wall. A plate presses the switch when the bed goes out and the 12 volt power comes on.
Why is this switch important?
It disconnect the 12 volt power when the camper is lowered so lights cannot accidently left on. If lights are left on and the camper is closed, the heat from the lamps can burn and damage the canvas that is folded under them.
Part number 4746C0971