Do you have Aeroelectric Connection yet?
Bob Nuckoll's electrical installation
manual is the bible of wiring.
He describes how to use a
2-10 switch as an off-on-on switch. (Choose the switch style in the drop down box under "Product Options")
Start by numbering the terminals on the 2-10 switch.
1 4
2 5
3 6
Bring 12V+ to terminal 5 and terminal 2.
Run the load to pick up on the middle-on postion to terminal 1.
Run the load to pick up on the top-on postion to terminal 4.
Leave terminals 3 and 5 empty.
In the middle-on position, you will have power to only one load.
In the top-on position, you will have power to both loads.
Alternatively, if you want only one load on in the middle-on postion, and only one different load on in the top-on postion, use a 2-12 switch.